State v. Correa ( 2022 )


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    STATE OF CONNECTICUT v. RICARDO CORREA
    (SC 20246)
    Robinson, C. J., and Palmer, McDonald, D’Auria,
    Mullins, Kahn and Ecker, Js.*
    Syllabus
    The defendant was convicted, following a conditional plea of nolo conten-
    dere, of the crimes of conspiracy to possess a controlled substance with
    intent to sell, conspiracy to possess narcotics with intent to sell by a
    person who is not drug-dependent, and conspiracy to operate a drug
    factory. During surveillance of a motel for illegal activity, a police officer,
    observing an individual, T, quickly enter and exit the defendant’s motel
    room at around 1 a.m., believed that he had witnessed a drug transaction.
    After T exited the motel room, he entered a vehicle driven by another
    individual, which departed from the motel. A short distance from the
    motel, the police stopped the vehicle. When the police approached the
    vehicle, they smelled a strong odor of marijuana emanating from inside
    the vehicle. After T was removed from the vehicle, he admitted to
    possessing marijuana. A search of T’s person revealed, inter alia, mari-
    juana and heroin. The police ultimately detained T, who, at that time,
    denied being in or having any connection with the defendant’s motel
    room. The police then went to the house of T’s grandmother, where T
    was living. After T’s grandmother consented to a search of T’s bedroom,
    the officers searched that room and found numerous plastic bags with
    the corners cut off, as well as other bags containing an off-white powder
    residue. The officers went back to the motel and spoke with the manager,
    who advised them that the defendant paid cash to rent a room there
    for a week and provided them with a copy of the defendant’s driver’s
    license. The manager also indicated that a guest registration card for
    that room included the name of an individual with T’s surname, which
    the police believed was most likely T. The officers then went to knock
    on the defendant’s motel room door. The officers observed a light on,
    but no one answered. One of the officers then retrieved a canine officer
    and conducted a canine sniff of the motel walkway in the vicinity of
    the defendant’s room. The canine alerted that it had detected contraband
    at the bottom of the door to the defendant’s room. On the basis of all
    that had transpired since observing T enter and exit the defendant’s
    room, the police decided to apply for a warrant to search the defendant’s
    room. Before the police submitted their application for a warrant, how-
    ever, one of the officers noticed the defendant walking away from the
    motel. The defendant was ultimately detained, and the officers found
    a large wad of cash on his person, as well as a motel room key. The
    police informed the defendant that T had admitted to them that he was
    storing his supply of marijuana in the defendant’s motel room, and the
    defendant responded that nothing in the room was his. The defendant
    agreed to open the door to the room for the officers but then changed
    his mind and refused to grant them entry. The defendant also indicated
    at that time that no one was in the room. To ensure that there was no
    one in the room who might destroy evidence before the officers could
    obtain a warrant, one of the officers used the defendant’s key to open
    the door. After opening the door, and without entering, an officer looked
    inside for approximately fifteen to thirty seconds and then closed the
    door. While the door was open, the officer observed evidence of drug
    activity. The defendant was then informed he could leave. Thereafter,
    the police prepared an application for and obtained a search warrant
    for the room. The application had been based on the results of the
    canine sniff of the door of the motel room, the observations made during
    the visual sweep of the room, and T’s admission to the police that he
    had kept his supply of marijuana in the room. A search of the room
    revealed a large quantity of heroin, among other items related to drug
    activity. The defendant filed a motion to suppress the evidence that had
    been seized from the motel room, claiming, inter alia, that the search
    violated his rights under the Connecticut constitution (art. I, § 7) because
    the search warrant application contained information obtained from an
    allegedly unlawful, warrantless visual sweep of the motel room. The
    trial court denied the motion, concluding that the visual sweep was
    necessary to prevent the imminent destruction of evidence and, there-
    fore, was justified by the exigent circumstances exception to the warrant
    requirement. The court also determined that, even if the visual sweep
    was not justified under that exception, the evidence seized during the
    execution of the search warrant was admissible under the independent
    source doctrine. The defendant appealed to the Appellate Court from
    the judgment of conviction, claiming, as he had in the trial court, that
    he was entitled to suppression of the evidence found in the motel room
    because the search warrant derived from the allegedly unlawful visual
    sweep of the room. The defendant also asserted, for the first time, that
    he was entitled to suppression of the evidence because the search
    warrant application included information obtained from the warrantless
    canine sniff conducted by the police outside of the door of his motel
    room. The Appellate Court affirmed the trial court’s judgment, conclud-
    ing that the visual sweep was constitutionally permissible under the
    exigent circumstances exception and that a warrant was unnecessary
    with respect to the canine sniff because the sniff was not a search under
    the state constitution. On the granting of certification, the defendant
    appealed to this court. Held:
    1. The canine sniff of the exterior door to the defendant’s motel room was
    a search for purposes of article first, § 7, of the Connecticut constitution:
    the protection against a canine sniff that is afforded to a resident of a
    multiunit condominium complex under the state constitution in accor-
    dance with State v. Kono (
    324 Conn. 80
    ) also extends to the occupant
    of a motel room, as motel guests have a reasonable expectation of
    privacy in their rooms, the fact that motel guests typically do not keep
    all of their personal effects in their rooms did not mean that the personal
    effects that guests do keep there should be subject to less protection
    under the law, a room occupied by a motel guest is not more vulnerable
    to a warrantless canine sniff than an apartment, condominium or house
    simply because other guests occupy nearby rooms or because rooms
    may be entered by motel staff to perform certain functions, and motel
    guests reasonably do not expect that the foot traffic generally associated
    with an open-air walkway abutting the motel’s guestrooms includes law
    enforcement officers trolling the walkway with a trained canine in search
    of contraband.
    2. The state could not prevail on its claim that, even if the canine sniff of
    the door to the defendant’s motel room was a search, such a search
    could be conducted without a warrant, as long as the search was based
    on reasonable and articulable suspicion that there were illicit drugs in
    the room: although cases from other jurisdictions hold that a canine
    sniff of the door to an apartment or a condominium unit in a multiunit
    building is lawful if it is based on reasonable and articulable suspicion
    rather than on probable cause, this court determined that those cases
    were incompatible with its reasoning and holding in Kono; moreover,
    under article first, § 7, searches conducted without a warrant based on
    probable cause are presumed to be unreasonable, the state’s heavy
    burden of overcoming that presumption is met only in certain excep-
    tional or compelling circumstances, and the few recognized exemptions
    from the warrant requirement under the state constitution invariably
    have involved searches conducted under circumstances requiring imme-
    diate action by the police, generally, in the interest of police or public
    safety, a consideration that was not implicated by a canine sniff per-
    formed to ascertain whether a motel room contains unlawful drugs;
    accordingly, a canine sniff of the exterior door to a motel room satisfies
    state constitutional requirements only if it follows the issuance of a
    warrant founded on probable cause.
    3. The information available to the police unrelated to the canine sniff was
    sufficient to establish probable cause for the search of the defendant’s
    motel room, but a remand to the trial court was necessary to afford the
    state an opportunity to demonstrate that the evidence seized from that
    room was admissible under the independent source doctrine by estab-
    lishing that the police would have sought the warrant regardless of the
    results of the canine sniff: the facts, untainted by the results of the
    canine sniff, were sufficient, standing alone, to support the issuance of
    the warrant, as T previously had been staying in the motel room, T was
    involved with and likely selling drugs, T was likely engaged in a drug
    transaction when he entered and immediately exited the room in the
    middle of the night, and there were likely drugs or drug related items
    in the room in light of what the police found on the defendant’s person
    and the defendant’s denial that anything in the motel room belonged to
    him; nevertheless, because the defendant did not raise the issue of the
    constitutionality of the canine sniff in the trial court and, thus, the state
    had no reason to adduce evidence demonstrating that the police were
    prepared to seek a warrant prior to the canine sniff or that they otherwise
    would have done so if the canine sniff had not occurred, the record
    was not clear with respect to that issue, and it would have been unfair
    to the state if this court had resolved the state’s independent source
    claim on the basis of an undeveloped record; moreover, the inadequacy
    of the record with respect to the state’s independent source claim did
    not require this court to reject the defendant’s constitutional challenge
    to the canine sniff under the first prong of State v. Golding (
    213 Conn. 233
    ), which ordinarily would bar appellate review of the defendant’s
    unpreserved constitutional challenge on the basis that remands to sup-
    plement the record are generally not permitted, as a remand to allow
    the state to present additional evidence was appropriate, under the
    unusual circumstances of this case, insofar as allowing the Appellate
    Court’s decision to stand would be contrary to the unanimous determina-
    tion of this court that the canine sniff was unlawful, and vacating the
    Appellate Court’s judgment would result in confusion with respect to
    the legality of a warrantless canine sniff of a motel room.
    4. This court could not resolve, as a matter of law, the state’s claim that
    the evidence seized from the motel room was admissible under the
    inevitable discovery doctrine on the ground that such evidence would
    have been discovered by lawful means in the absence of the canine
    search: although it was apparent that the investigating officers were
    seeking to develop enough evidence to obtain a warrant for the motel
    room even before the canine sniff was conducted and that their investiga-
    tion could have resulted in their obtaining a warrant even if the canine
    sniff never occurred, the evidence adduced at the defendant’s suppres-
    sion hearing did not establish, as a matter of law, that the police would
    have sought a warrant irrespective of the canine sniff; moreover, because
    this court lacked the authority to find facts, it could not resolve the
    factual issue presented by the state’s inevitable discovery claim, as
    the undisputed evidence did not lead to only one possible conclusion;
    nevertheless, as the state had no reason to adduce evidence in support
    of its inevitable discovery claim before the trial court insofar as the
    defendant did not challenge the propriety of the canine sniff in that
    court, this court concluded that, on remand, the state must be afforded
    the opportunity to present additional evidence in support of that claim.
    5. The Appellate Court and the trial court incorrectly determined that the
    visual sweep of the defendant’s motel room was justified by exigent
    circumstances, as the possibility that evidence would be destroyed was
    too speculative: the belief held by the police that an immediate visual
    sweep of the room was necessary to avert the destruction of evidence
    was not objectively reasonable, as the police knew that neither of the
    two individuals actually linked to the motel room was in a position to
    destroy evidence located inside the room because, at the time of the
    visual sweep, T was under arrest and the defendant was with the police,
    there was nothing in the record to suggest that the police had reason
    to believe that anyone else had a similarly direct connection to the room
    or its contents, the generalized possibility that an unknown person might
    be lurking inside was not sufficient to justify a visual sweep, and, except
    for the unremarkable fact that a light was on inside the room, the record
    was devoid of any evidence from which a police officer reasonably
    could have concluded that someone was inside the room; moreover,
    the determination of whether the state could prevail on its claim that
    any impropriety stemming from the visual sweep was obviated by the
    independent source doctrine required additional fact-finding, and,
    accordingly, this court directed that, on remand, the state must be
    afforded the opportunity to present additional evidence related to
    whether the police would have sought a warrant irrespective of the
    visual sweep, and the trial court’s determination of that issue must be
    made in light of the fact that the canine sniff was also unlawful.
    Argued February 27, 2020—officially released September 15, 2021**
    Procedural History
    Information charging the defendant with the crimes
    of possession of four or more ounces of marijuana,
    conspiracy to possess four or more ounces of mari-
    juana, possession of a controlled substance with intent
    to sell, conspiracy to possess a controlled substance
    with intent to sell, possession of narcotics, conspiracy
    to possess narcotics, possession of narcotics with intent
    to sell by a person who is not drug-dependent, conspir-
    acy to possess narcotics with intent to sell by a person
    who is not drug-dependent, operation of a drug factory,
    and conspiracy to operate a drug factory, brought to
    the Superior Court in the judicial district of Stamford,
    geographical area number one, where the court, Blawie,
    J., denied the defendant’s motion to suppress certain
    evidence; thereafter, the defendant was presented to
    the court on a conditional plea of nolo contendere to the
    crimes of conspiracy to possess a controlled substance
    with intent to sell, conspiracy to possess narcotics with
    intent to sell by a person who is not drug-dependent,
    and conspiracy to operate a drug factory; judgment of
    guilty in accordance with the plea; subsequently, the
    state entered a nolle prosequi as to the remaining
    charges, and the defendant appealed to the Appellate
    Court, Alvord, Prescott and Beach, Js., which affirmed
    the trial court’s judgment, and the defendant, on the
    granting of certification, appealed to this court.
    Reversed; further proceedings.
    Laila M. G. Haswell, senior assistant public defender,
    for the appellant (defendant).
    Michele C. Lukban, senior assistant state’s attorney,
    with whom, on the brief, were Richard J. Colangelo, Jr.,
    chief state’s attorney, and Susan M. Campbell, assistant
    state’s attorney, for the appellee (state).
    Opinion
    PALMER, J. The primary issue presented by this
    appeal is whether article first, § 7, of the Connecticut
    constitution1 prohibits the police from conducting a
    warrantless canine sniff of the exterior door to a motel
    room for the purpose of detecting the presence of illegal
    drugs inside the room. We conclude that a warrantless
    canine sniff of the exterior door to a motel room by
    the police violates article first, § 7, because its use for
    that purpose constitutes a search subject to the warrant
    requirement of that state constitutional provision.
    The defendant, Ricardo Correa, was charged with
    several drug related offenses and, thereafter, filed a
    motion to suppress the evidence, including heroin and
    marijuana, that had been seized from his motel room
    pursuant to a search warrant. In support of the motion,
    he claimed that the search violated his rights under
    article first, § 7, of the Connecticut constitution and the
    fourth amendment to the United States constitution
    because the search warrant affidavit contained informa-
    tion obtained from an allegedly unlawful, warrantless
    visual sweep of his motel room. The trial court denied
    the motion on the ground that the visual sweep was
    necessary to prevent the imminent destruction of evi-
    dence and, therefore, was justified by the exigent cir-
    cumstances exception to the warrant requirement. The
    trial court further concluded that, even if the visual
    sweep was not justified under that exception, the evi-
    dence seized during the execution of the search warrant
    was admissible under the independent source doctrine.
    The defendant subsequently entered a conditional plea
    of nolo contendere; see General Statutes § 54-94a;2 to
    the charges of conspiracy to possess a controlled sub-
    stance with intent to sell in violation of General Statutes
    §§ 21a-277 (b) and 53a-48, conspiracy to possess a con-
    trolled substance with intent to sell by a person who
    is not drug-dependent in violation of General Statutes
    §§ 21a-278 (a) and 53a-48, and conspiracy to operate a
    drug factory in violation of General Statutes §§ 21a-277
    (c) and 53a-48, reserving his right to appeal from the
    denial of his motion to suppress. The trial court imposed
    a total effective sentence of nine years’ imprisonment.
    The defendant appealed to the Appellate Court,
    claiming, contrary to the determination of the trial
    court, that he was entitled to suppression of the evi-
    dence found in the motel room because the search
    warrant pursuant to which that evidence was seized was
    derived from the unlawful visual sweep of the room.
    See State v. Correa, 
    185 Conn. App. 308
    , 311, 
    197 A.3d 393
     (2018). In addition, he claimed for the first time that
    the evidence must be suppressed because the search
    warrant affidavit also included information obtained
    from a canine sniff conducted by the police outside the
    door of his motel room, which, the defendant main-
    tained, violated his rights under article first, § 7, because
    it was performed without a warrant predicated on prob-
    able cause. Id., 321. The Appellate Court rejected both
    of these claims, concluding, with respect to the visual
    sweep, that it was constitutionally permissible under
    the exigent circumstances exception to avert the
    destruction of evidence; see id., 340; and, with respect
    to the canine sniff, that a warrant was unnecessary
    because the sniff was not a search for purposes of the
    state constitution. See id., 330–31. The Appellate Court
    therefore affirmed the judgment of the trial court; id.,
    340; and we granted the defendant’s petition for certifi-
    cation to appeal, limited to the following issues: (1)
    ‘‘Did the Appellate Court [correctly] determine that a
    police canine sniff that took place outside of the defen-
    dant’s motel room was not a search that violated the
    defendant’s rights under article first, § 7, of the Connect-
    icut constitution?’’ And (2) ‘‘[d]id the Appellate Court
    [correctly] conclude that the visual sweep of the defen-
    dant’s motel room was justified by exigent circum-
    stances?’’ State v. Correa, 
    330 Conn. 959
    , 959–60, 
    199 A.3d 19
     (2019). We agree with the defendant that the
    Appellate Court incorrectly determined that the canine
    sniff was lawful under article first, § 7. We also agree
    with the defendant that the visual sweep was not justi-
    fied by the exigencies of the situation. For the reasons
    set forth more fully hereinafter, however, we further
    conclude that the case must be remanded to the trial
    court so that the state may have the opportunity to
    adduce testimony establishing, first, that the evidence
    seized pursuant to the search warrant was admissible,
    notwithstanding the impropriety of the canine sniff,
    under the independent source or inevitable discovery
    doctrine, and, second, that the evidence seized pursuant
    to the warrant was admissible, notwithstanding the
    impropriety of the visual sweep, under the independent
    source doctrine.
    I
    FACTS AND PROCEDURAL HISTORY
    The opinion of the Appellate Court sets forth the
    following facts, as found by the trial court on the basis of
    the evidence adduced at the hearing on the defendant’s
    motion to suppress, and procedural history. ‘‘During
    the early morning hours of February 5, 2013, Sergeant
    Christopher Broems of the Stamford Police Department
    was parked on Home Court, a street immediately behind
    the America’s Best Value Inn motel (motel) on East
    Main Street in [the city of] Stamford. Sergeant Broems,
    a nineteen year veteran of the Stamford Police Depart-
    ment who also spent three years in the New York City
    Police Department, had made many prior arrests at the
    motel for narcotics, prostitution, and other criminal
    activity. From the street, Sergeant Broems was surveil-
    ling the motel for evidence of possible illegal activity.
    He was parked approximately fifty yards away from
    the motel and had a clear, well illuminated view of the
    motel, which included two floors of numbered motel
    room doors that opened onto the back parking lot.
    ‘‘At approximately 1:20 a.m., Sergeant Broems observed
    a silver colored 2004 GMC Yukon pull into the motel
    parking lot. Only the passenger in the Yukon, who was
    later determined to be Eudy Taveras, exited the Yukon,
    while the operator remained in the vehicle with the
    headlights on. Taveras approached and entered room
    118 of the motel, which was on the first floor, where
    he remained for less than one minute. Taveras returned
    to the vehicle, which then left the motel. Given the
    location, time of night, and duration of the visit, Ser-
    geant Broems believed that he may have witnessed a
    narcotics transaction out of room 118. Sergeant Broems
    radioed to a nearby colleague, Officer Vincent Sheperis,
    [indicating] that he intended to stop the Yukon, and
    then drove in the direction of the Yukon.
    ‘‘When the operator of the Yukon, who was later
    determined to be Charles Brickman, observed Sergeant
    Broems approaching the Yukon in his marked Stamford
    Police SUV, he turned off [his] headlights. A short dis-
    tance from the motel, Sergeant Broems stopped the
    vehicle. Officer Sheperis joined Sergeant Broems, act-
    ing as backup. When Sergeant Broems and Officer Shep-
    eris approached the vehicle, they both smelled a strong
    odor of marijuana emanating from inside the Yukon.
    Sergeant Broems and Officer Sheperis removed Taveras
    from the vehicle, and Taveras admitted to possessing
    ‘weed.’ A search of Taveras revealed two glass jars
    with yellow tops containing marijuana, along with three
    other similar, but empty, yellow topped glass jars, as
    well as a knotted corner of a plastic sandwich bag
    containing heroin. On the basis of this evidence, Ser-
    geant Broems requested a sweep of the Yukon by a
    canine officer trained in the detection of narcotics.
    ‘‘A canine officer, Cooper, and his Stamford Police
    Department handler, Sergeant Seth O’Brien, arrived on
    the scene shortly after Sergeant Broems’ request. Coo-
    per alerted to the center console of the vehicle, but the
    officers found no additional drugs. Brickman was found
    to have no drugs on his person.’’ State v. Correa, supra,
    
    185 Conn. App. 311
    –13. In response to questioning by
    the police, Brickman stated that Taveras was ‘‘staying
    in the hotel’’ but that he ‘‘[did not] know what [Taveras]
    was getting’’ when he entered and then quickly exited
    the first floor room there. Brickman was issued a ticket
    for operating a motor vehicle without headlights but
    was allowed to leave in the Yukon. The officers detained
    Taveras, who, at that time, denied being in or having
    any connection to the motel room. Taveras also denied
    having any more marijuana.
    ‘‘Taveras informed Sergeant O’Brien that he lived
    with his grandmother nearby on Charles Street in Stam-
    ford. At that point, Sergeant Broems, Officer Sheperis,
    and Sergeant O’Brien went to the grandmother’s home
    on Charles Street, where they spoke with Taveras’
    brother. [According to his brother, Taveras was in the
    process of moving out of the house.] Taveras’ grand-
    mother signed a consent form allowing the officers
    to search Taveras’ bedroom. In Taveras’ bedroom, the
    officers found numerous plastic bags with the corners
    cut off, consistent with narcotics packaging, along with
    other bags containing an [off-white] powder residue.
    ‘‘The officers then returned to the motel. They spoke
    with the manager of the motel, who advised them that,
    several days earlier, the defendant rented room 118 for
    the week, until February 8, 2013, paying $430 in cash.3
    The manager provided the officers with documentation
    concerning room 118, including a photocopy of the
    defendant’s driver’s license. The guest registration card
    for room 118 also included the name of a second individ-
    ual, Victor Taveras. Although the officers were not cer-
    tain who Victor Taveras was, Sergeant O’Brien testified
    that . . . he most likely was Eudy Taveras.
    ‘‘After speaking with the manager, the officers went
    together to knock on the door of room 118. The officers
    observed a light on in the room, but no one answered
    the door. Sergeant O’Brien then retrieved Cooper and
    conducted a narcotics sweep, which included several
    passes [of four rooms located] along the first floor walk-
    way [including] room 118 . . . . On each pass, Cooper
    consistently alerted to the presence of narcotics at the
    door to room 118.4
    ‘‘It was then approximately 3 a.m. on February 5,
    2013, a little over ninety minutes since Sergeant Broems
    first observed Taveras enter and exit room 118. At this
    point, on the basis of all that had transpired since
    observing Taveras enter and exit room 118, [and after
    conferring by telephone with the shift commander,
    Lieutenant Philip Mazzucco, and another sergeant,
    Adrian Novia,5 both of whom were at Stamford police
    headquarters], Sergeant Broems decided to apply for a
    warrant to search room 118. The officers decided that
    Sergeant Broems and Officer Sheperis would return to
    . . . headquarters to prepare the search warrant and
    to process Taveras for his drug charges, and Sergeant
    O’Brien would remain behind on Home Court, in the
    same area where Sergeant Broems was parked earlier,
    to surveil room 118 for any possible activity. Very
    shortly after the officers split up, however, just as Ser-
    geant O’Brien was getting into position to surveil room
    118, he observed the defendant on foot near the motel
    at the corner of Home Court and East Main Street,
    walking away from the motel. Sergeant O’Brien, who
    recognized the defendant, immediately radioed for Ser-
    geant Broems and Officer Sheperis to return to the
    motel to stop the defendant.
    ‘‘While walking on Home Court, the defendant made
    eye contact with Sergeant O’Brien, who was in a marked
    police SUV. After the defendant made eye contact with
    Sergeant O’Brien, the defendant changed his direction
    and began walking east on East Main Street. About 100
    yards from the motel, Sergeant O’Brien approached the
    defendant, stepped out of his police vehicle, and,
    addressing the defendant as ‘Ricky,’ told the defendant
    that he needed to speak with him. Initially, the defen-
    dant was cooperative. Sergeant Broems arrived on the
    scene, and the defendant was searched. The officers
    found that the defendant was carrying a large wad of
    cash, amounting to over $3600, in his pocket, along with
    a key to a room at the motel. Sergeant O’Brien [seized
    the cash that the defendant had in his possession and
    informed him that Taveras, who at police headquarters
    later admitted to storing his supply of marijuana in the
    room, had been] taken into custody, and that ‘the jig
    is up.’ The defendant responded, ‘nothing in the room
    is mine.’6 The defendant agreed to open the door to
    room 118 for the officers. When the officers and the
    defendant reached the threshold of room 118, however,
    the defendant changed his mind and refused to grant
    them entry. The officers informed the defendant that,
    if he did not consent to a search of the room, they were
    going to obtain a search warrant.
    ‘‘The defendant informed Sergeant Broems that there
    was no one in the room. To ensure that there was no
    one else inside the room [who] might destroy evidence
    before the officers could obtain a search warrant, how-
    ever, Sergeant Broems used the defendant’s room key
    to open the door. After opening the door, Sergeant
    Broems announced, ‘[p]olice,’ and looked inside the
    room for approximately fifteen to thirty seconds.7 Once
    he was satisfied that the room contained no occupants,
    Sergeant Broems closed the door. While the door was
    open, neither Sergeant Broems, nor any other officer
    or Cooper, set foot in or otherwise physically entered
    room 118. When he did not observe anyone in the room,
    Sergeant Broems ‘cleared’ room 118. Although he did
    not enter the room, or take any steps to seize any evi-
    dence located inside the room, Sergeant Broems did
    observe a large black digital scale on a table, as well
    as a plastic sandwich bag lying on the floor nearby. The
    officers advised the defendant that he was free to leave
    the motel, and the defendant left.
    ‘‘Following the defendant’s departure, other officers
    of the Stamford Police Department arrived at the motel.
    Those officers were assigned to watch room 118 while
    the investigating officers prepared an application for
    a search warrant, with Sergeant O’Brien and Officer
    Sheperis acting as affiants. [The facts contained in their
    affidavit in support of the warrant application included
    the canine sniff indicating that there were illegal drugs
    in the room, the visual sweep of the room by the police
    and their observation during that sweep of the digital
    scale and plastic bag, and the acknowledgment by Tav-
    eras, following his arrest and booking at police head-
    quarters, that he kept his supply of marijuana in the
    room.] Several hours later, at 9:20 a.m., the court, Hon.
    Richard F. Comerford, Jr., judge trial referee, signed
    the search warrant for room 118.
    ‘‘When the police executed the search warrant, they
    discovered a total of approximately 200 grams of heroin,
    with a street value of approximately $85,000. The heroin
    was broken down into dozens of smaller baggies or
    glassine folds for individual sale. The officers also dis-
    covered a large quantity of [United States] currency, a
    laptop computer, and paper documents pertaining to a
    street gang, the Latin Kings. The police also discovered
    [more than] four ounces of marijuana and a quantity
    of packaging materials, along with a vacuum sealing
    machine, two sifters, and two digital scales. These items
    were consistent with the operation of a drug factory
    by the defendant in the motel room. After the search
    warrant was executed, the police arrested the defen-
    dant at Taveras’ grandmother’s house on Charles Street.
    The defendant was charged with a variety of felony
    drug offenses. On October 28, 2015, the defendant filed
    a motion to suppress ‘all items seized by [the] police
    on February 5, 2013, from America’s Best Value Inn
    [r]oom . . . 118.’ In his memorandum of law in support
    of the motion to suppress, the defendant argued that,
    because Sergeant Broems’ visual sweep of the room was
    performed without obtaining a valid search warrant, it
    was ‘per se unreasonable.’ The defendant further argued
    that, because the search did not fall within any recog-
    nized exceptions to the warrant requirement, as no exi-
    gent circumstances existed at the time and the conduct
    fell short of a protective sweep, ‘any evidence found as
    a result of the prior police illegality must be suppressed.’
    ‘‘The [trial] court held a hearing on the motion to
    suppress on February 29, 2016. The state presented the
    testimony of Sergeant Broems, Officer Sheperis, and
    Sergeant O’Brien. At the conclusion of the suppression
    hearing, the state did not contest that Sergeant Broems’
    visual sweep of the room constituted a warrantless
    search within the meaning of the fourth amendment to
    the United States constitution and article first, § 7, of
    the Connecticut constitution. Rather, the state argued
    that, because [Sergeant] Broems’ visual sweep of room
    118 was undertaken ‘solely for the purpose of [e]nsuring
    . . . that no evidence was being destroyed,’ it was law-
    ful pursuant to the exigent circumstances exception to
    the warrant requirement. The state specifically noted
    that the visual sweep did not constitute a ‘protective
    sweep.’8 The state alternatively argued that, even if the
    visual sweep was unlawful, the evidence seized from the
    room was still admissible pursuant to the independent
    source doctrine.
    ‘‘On June 22, 2016, the court denied the defendant’s
    motion to suppress in a written memorandum of deci-
    sion. The court concluded that Sergeant Broems’ war-
    rantless visual sweep was proper, under the exigent
    circumstances doctrine, to prevent the destruction of
    evidence. The court reasoned that, ‘when all the facts
    of this case as known by [the] police at the time of
    the warrantless entry by [Sergeant] Broems are viewed
    objectively, the case meets the criteria for a finding of
    exigent circumstances.’ ’’ (Footnotes altered.) State v.
    Correa, supra, 
    185 Conn. App. 313
    –18. The court also
    agreed with the state that, even if the visual sweep
    was not justified by the exigencies of the situation,
    the evidence discovered as a result of that sweep was
    admissible under the independent source doctrine. Id.,
    319.
    ‘‘On October 19, 2016, the defendant entered a condi-
    tional plea of nolo contendere to [the charges of] con-
    spiracy to possess a controlled substance with intent
    to sell . . . conspiracy to possess a controlled sub-
    stance with intent to sell by a person who is not drug-
    dependent . . . and conspiracy to operate a drug fac-
    tory . . . . The plea was entered conditionally on [the
    defendant’s] right to take an appeal from the [trial]
    court’s ruling on the motion to suppress. The [trial]
    court . . . rendered . . . judgment of conviction . . .
    [and] sentenced the defendant to a term of incarceration
    of nine years on each of the charges, followed by six
    years of special parole, to run concurrently with one
    another, for a total effective sentence of nine years to
    serve followed by six years of special parole. On March
    31, 2017, the court made a finding that the motion to
    suppress was dispositive of the case.’’ Id., 319–20.
    The defendant then appealed to the Appellate Court,
    claiming that the trial court had incorrectly determined
    that the visual sweep of the motel room was lawful
    under the exigent circumstances doctrine or, alterna-
    tively, under the independent source doctrine. See id.,
    332. In addition, he claimed for the first time on appeal
    that the canine sniff of the door to the motel room
    constituted an unlawful search under article first, § 7,
    of the state constitution.9 Id., 321. With respect to his
    latter contention, the defendant maintained that he was
    entitled to prevail on his unpreserved claim under State
    v. Golding, 
    213 Conn. 233
    , 239–40, 
    567 A.2d 823
     (1989),
    as modified by In re Yasiel R., 
    317 Conn. 773
    , 781, 
    120 A.3d 1188
     (2015),10 because the record was adequate
    for review and the resolution of the defendant’s claim
    was governed by this court’s then recent decision in
    State v. Kono, 
    324 Conn. 80
    , 122, 
    152 A.3d 1
     (2016),11
    which held that article first, § 7, prohibits the police
    from conducting a warrantless canine sniff of the front
    door of a condominium in a multiunit condominium
    complex, and the common hallway adjacent thereto,
    for the purpose of detecting marijuana. See State v.
    Correa, supra, 
    185 Conn. App. 321
    , 324.
    The state opposed the defendant’s first claim on the
    ground that the visual sweep of the motel room was
    justified by exigent circumstances; id., 332; but that,
    even if the sweep was not so justified, the seized evi-
    dence was admissible under the independent source
    doctrine. Id., 317–18. The state disagreed with the defen-
    dant’s claim concerning the canine sniff for several
    reasons. First, the state argued that the record was
    inadequate for review of the claim under the first prong
    of Golding because, in light of the defendant’s failure
    to challenge the constitutional propriety of the canine
    sniff in the trial court, the state had no occasion to
    prove what it maintained was an alternative rationale
    for the admissibility of the seized evidence, namely, the
    independent source doctrine.12 See id., 322 n.9. The state
    also contended that, in the event the Appellate Court
    elected to consider the merits of the claim, the defen-
    dant could not establish a constitutional violation
    because the canine sniff was not a search subject to
    the requirements of article first, § 7. See id. In addition,
    the state maintained that, even if the canine sniff was
    a search, it need only have been supported by a reason-
    able and articulable suspicion, a standard that, the state
    further asserted, was satisfied in the present case. Id.,
    331 n.21. Finally, the state argued that, if the Appellate
    Court agreed with the defendant that the canine sniff
    constituted a full-blown search requiring a warrant
    predicated on probable cause, the seizure of the evi-
    dence from the motel room was lawful nonetheless
    under the independent source or inevitable discovery
    doctrine. See id., 322 n.9, 331 n.20.13
    The Appellate Court rejected the defendant’s claim
    regarding the visual sweep of the motel room, agreeing
    with the trial court that it was permissible due to exigent
    circumstances.14 Id., 340. The Appellate Court also con-
    sidered and rejected the defendant’s contention con-
    cerning the constitutionality of the canine sniff, con-
    cluding that the sniff was not a search subject to the
    protection of the state constitution. See id., 330. In
    light of this determination, it was unnecessary for the
    Appellate Court to address the state’s arguments that
    the claim was unreviewable and, even if reviewable,
    that the evidence seized was admissible under the inde-
    pendent source or inevitable discovery doctrine. See
    id., 331 n.20.
    In rejecting the defendant’s argument under Kono,
    the Appellate Court explained that the present case is
    distinguishable from Kono because, in that case, the
    hallway in which the canine sniff occurred ‘‘was closed
    off and located on the inside of the condominium com-
    plex structure, which was restricted by a locked door.
    It was accessible only by keycard access, and the police
    needed to obtain permission before entering the hall-
    way.’’ (Emphasis in original.) Id., 329–30. In contrast,
    in the present case, ‘‘[t]he open, shared walkway . . .
    was located on the outside of the structure. It was open
    to the public, as well as completely illuminated and
    visible to anyone as far as fifty yards away, even at
    nighttime. Furthermore, no permission was required to
    traverse the walkway, evidenced by the ease with which
    the officers, and eventually Cooper, did so.’’ Id., 330.
    This distinction, the Appellate Court concluded, was
    fatal to the defendant’s claim of a constitutional viola-
    tion, primarily because he was unable to establish ‘‘a
    reasonable expectation of privacy [in] the outside of
    the door to his motel room.’’ Id.
    On appeal to this court, the defendant contends that
    the Appellate Court incorrectly determined that the
    canine sniff of the door to the motel room was not a
    search in violation of article first, § 7. The defendant
    further contends that the Appellate Court incorrectly
    concluded that the visual sweep of the motel room
    was lawful under the exigent circumstances doctrine
    to prevent the destruction of evidence. In response, the
    state renews the arguments that it made in the Appellate
    Court to support its contention that the judgment of
    that court should be affirmed.
    We conclude, first, that the canine sniff of the motel
    room was unlawful under article first, § 7, because it
    was a search requiring a warrant supported by probable
    cause. We also conclude, however, that the case must
    be remanded to the trial court so that the state may
    present additional testimony in connection with its
    claim that the evidence seized pursuant to the search
    warrant was admissible under the independent source
    or inevitable discovery doctrine despite the impropriety
    of the canine sniff. With respect to the visual search,
    we conclude that it was not justified by exigent circum-
    stances. We further conclude, however, that the trial
    court, after affording the state the opportunity to sup-
    plement the record, shall reconsider the state’s claim
    that the illegality of the visual search was obviated by
    the independent source doctrine.
    II
    THE CANINE SNIFF: WAS IT A SEARCH?
    We begin with the defendant’s unpreserved claim that
    the canine sniff of the door to his hotel room was a
    search for purposes of article first, § 7, of the Connecti-
    cut constitution.15 ‘‘It is well established that this court,
    in determining whether the police conducted a search
    under article first, § 7, employ[s] the same analytical
    framework that would be used under the federal consti-
    tution. . . . Specifically, we ask whether the defendant
    has established that he had a reasonable expectation
    of privacy in the area or thing searched.16 . . . In the
    absence of such an expectation, the subsequent police
    action has no constitutional ramifications. . . . The
    determination of whether such an expectation exists is
    to be made on a [case-by-case] basis . . . and requires
    a [two part] inquiry: first, whether the individual has
    exhibited an actual subjective expectation of privacy,
    and, second, whether that expectation is one society
    recognizes as reasonable. . . . Whether a defendant’s
    actual expectation of privacy in a particular place is
    one that society is prepared to recognize as reasonable
    involves a fact-specific inquiry into all the relevant cir-
    cumstances.’’ (Citation omitted; footnote altered; inter-
    nal quotation marks omitted.) State v. Kono, supra, 
    324 Conn. 89
    –90. Thus, ‘‘[t]his determination is made on a
    case-by-case basis. . . . The burden of proving the
    existence of a reasonable expectation of privacy rests
    [with] the defendant.’’ (Internal quotation marks omit-
    ted.) State v. Jacques, 
    332 Conn. 271
    , 279, 
    210 A.3d 533
     (2019).
    ‘‘The determination that a particular place is pro-
    tected under [article first, § 7] requires that it be one
    in which society is prepared, because of its code of
    values and its notions of custom and civility, to give
    deference to a manifested expectation of privacy. . . .
    It must be one that society is prepared to recognize as
    reasonable. . . . Legitimate expectations of privacy
    derive from concepts of real or personal property law
    or [from] understandings that are recognized and per-
    mitted by society. One of the main rights attaching to
    property is the right to exclude others . . . and one
    who owns or lawfully possesses or controls property
    will in all likelihood have a legitimate expectation of
    privacy by virtue of this right to exclude. . . . Of
    course, one need not have an untrammeled power to
    admit and exclude in order to claim the protection of
    [article first, § 7, as] long as the place involved is one
    affording an expectation of privacy that society regards
    as reasonable. . . .
    ‘‘Additional principles guide our analysis of the
    [defendant’s] claim, chief among them the bedrock prin-
    ciple that [p]rivacy expectations are . . . highest and
    are accorded the strongest constitutional protection in
    the case of a private home and the area immediately
    surrounding it. . . . It is also axiomatic that a search
    or seizure conducted without a warrant issued upon
    probable cause is presumptively unreasonable.’’ (Cita-
    tions omitted; footnote omitted; internal quotation
    marks omitted.) State v. Kono, supra, 
    324 Conn. 90
    –91.
    Because ‘‘[o]ur constitutional preference for warrants
    reflects a goal of protecting citizens from unjustified
    police intrusions by interposing a neutral [decision
    maker] between the police and the object of the pro-
    posed search’’; State v. Miller, 
    227 Conn. 363
    , 382, 
    630 A.2d 1315
     (1993); that preference ‘‘is overcome only in
    specific and limited circumstances.’’ (Internal quotation
    marks omitted.) State v. Kono, supra, 91.
    ‘‘Finally, [i]n determining the contours of the protec-
    tions provided by our state constitution, we employ a
    multifactor approach . . . . The factors that we con-
    sider are (1) the text of the relevant constitutional provi-
    sions; (2) related Connecticut precedents; (3) persua-
    sive federal precedents; (4) persuasive precedents of
    other state courts; (5) historical insights into the intent
    of [the] constitutional [framers]; and (6) contemporary
    understandings of applicable economic and sociologi-
    cal norms [otherwise described as public policies]. . . .
    We have noted, however, that these factors may be
    inextricably interwoven, and not every [such] factor
    is relevant in all cases.’’17 (Citation omitted; internal
    quotation marks omitted.) Id., 92. Because this court,
    in State v. Kono, supra, 
    324 Conn. 80
    , recently consid-
    ered the state constitutional implications of a canine
    sniff conducted in the related context of a multiunit
    condominium complex, our resolution of the present
    claim is informed primarily by our reasoning and analy-
    sis in Kono. We also take into account, of course, rele-
    vant case law pertaining to the nature of one’s right of
    privacy in a motel room, as distinguished from a home
    or permanent residence.
    In support of his contention of a constitutional viola-
    tion, the defendant relies principally on Kono, in which
    we were required to decide whether the defendant,
    Dennis Kono, was entitled to the suppression of certain
    evidence seized from his condominium following a war-
    rantless canine sniff conducted by the police just out-
    side of the door to the condominium. See 
    id., 82
    . In
    that case, the police decided to conduct the search after
    receiving an anonymous tip that Kono was growing
    marijuana in his condominium, which was one of thirty-
    four such units situated on the first two floors of the
    complex in which Kono resided. 
    Id., 83
    . The outside
    doors of the complex were normally locked, with access
    to the complex gained through a keypad. 
    Id.,
     83–84.
    The police, however, were allowed entry to the complex
    by the property manager, who, at the request of the
    police, had signed a consent form permitting them to
    conduct a canine examination of the complex’s com-
    mon areas. 
    Id., 83
    . A police canine handler, accompa-
    nied by a trained drug detection dog, walked through
    the common hallway located on each of the first two
    floors of the complex, and the handler directed the dog
    to sniff at the bottom of the front door of the units on
    both floors. See 
    id., 84
    . The dog alerted following his
    sniff at the door to Kono’s unit and, after knocking on
    Kono’s door with no response, the police sought and
    obtained a search warrant for the unit on the basis of
    the results of the canine sniff. 
    Id.
     Upon executing the
    warrant, the police discovered an indoor greenhouse
    containing marijuana plants, lighting equipment and
    several firearms, and Kono, thereafter, was charged
    with various drugs offenses and illegal possession of
    an assault weapon. 
    Id.
    Kono subsequently filed a motion to suppress the
    evidence seized from his unit, claiming that the canine
    sniff of the threshold of his home was a search under
    both the fourth amendment and article first, § 7, of the
    state constitution and, therefore, that a warrant based
    on probable cause was required. Id., 84–85. The trial
    court agreed with the defendant that the warrantless
    canine sniff was a search that violated his reasonable
    expectation of privacy protected by the fourth amend-
    ment and granted the motion to suppress.18 Id., 85.
    Because none of the state’s evidence would have been
    admissible against the defendant at trial in light of the
    court’s ruling on the defendant’s motion, the court
    granted the defendant’s motion to dismiss the charges.
    Id., 89.
    The state appealed, and we reached the same conclu-
    sion as the trial court, albeit under article first, § 7.19
    Id., 82, 122. After observing that ‘‘[p]rivacy expectations
    are . . . highest and are accorded the strongest consti-
    tutional protection in the case of a private home and the
    area immediately surrounding it’’; (internal quotation
    marks omitted) id., 91; we disagreed with the state that
    the canine sniff was constitutionally innocuous merely
    because the police had received permission to enter
    the complex. See id., 109. In reaching that conclusion,
    we explained that the critical consideration was not
    where the canine sniff took place but, rather, the fact
    that Kono’s condominium was the object of the canine
    sniff. See id., 112–14. In this regard, we agreed with the
    trial court, which, as we explained, had ‘‘rejected the
    state’s contention that a [search] warrant was not
    required because [t]he police were lawfully present in
    the common hallway outside [Kono’s] front door, an
    area where, in the state’s view, [Kono] had no reason-
    able expectation of privacy or any property interest
    sufficient to protect against the officers’ warrantless
    intrusion. . . . [I]t was immaterial that the police were
    lawfully present in the hallway, or that [Kono] had a
    diminished expectation of privacy in the common areas
    of his condominium complex, because the privacy inter-
    est at stake did not relate to those areas but, rather, to
    the inside of [Kono’s] home.’’ (Internal quotation marks
    omitted.) Id., 88. In this regard, we also relied on the
    fact that, in Florida v. Jardines, 
    569 U.S. 1
    , 
    133 S. Ct. 1409
    , 
    185 L. Ed. 2d 495
     (2013), the United States Supreme
    Court concluded that a canine sniff conducted by the
    police at the front door of a home was a search pro-
    tected by the fourth amendment, even though the police,
    no less than any other visitor, generally were free to
    enter the homeowner’s property and to approach the
    front door.20 See 
    id.,
     8–10; see also State v. Kono, supra,
    
    324 Conn. 112
    .
    We also were unpersuaded by the state’s argument
    that the canine sniff was not a search because the sniff
    reveals only the existence of contraband, and Kono
    had no reasonable expectation of privacy in any such
    contraband inside his condominium. State v. Kono,
    supra, 
    324 Conn. 111
    –12. Although acknowledging that
    the United States Supreme Court had considered the
    fact that a canine sniff reveals nothing but contraband
    in concluding that that investigative technique is not a
    search within the meaning of the fourth amendment
    when directed at a motor vehicle subject to a lawful
    traffic stop; Illinois v. Caballes, 
    543 U.S. 405
    , 408–10,
    
    125 S. Ct. 834
    , 
    160 L. Ed. 2d 842
     (2005); or luggage at
    a public airport; United States v. Place, 
    462 U.S. 696
    ,
    707, 
    103 S. Ct. 2637
    , 
    77 L. Ed. 2d 110
     (1983); we explained
    that the privacy interest in one’s home is considerably
    greater than the privacy interest in one’s automobile
    or luggage at an airport. State v. Kono, supra, 109–13.
    Explaining that ‘‘this distinction between searches of
    the home and searches of locations outside [of] the
    home is consistent with the established priorities of
    article first, § 7, of the Connecticut constitution’’; id.,
    113; and underscoring this state’s long-standing consti-
    tutional preference for warrants; id.; we agreed with
    Kono that, for purposes of the state constitution, the
    canine sniff of his condominium was a search requiring
    a warrant founded on probable cause.21 Id., 122.
    In addition to Kono, the defendant also relies on this
    court’s recognition in State v. Benton, 
    206 Conn. 90
    ,
    
    536 A.2d 572
    , cert. denied, 
    486 U.S. 1056
    , 
    108 S. Ct. 2823
    , 
    100 L. Ed. 2d 924
     (1988), that ‘‘[p]ersons . . .
    residing in an apartment, or persons staying in a hotel
    or motel have the same fourth amendment rights to
    protection from unreasonable searches and seizures
    and the same reasonable expectation of privacy as do
    the residents of any dwelling.’’ (Emphases in original.)
    
    Id., 95
    ; see also Stoner v. California, 
    376 U.S. 483
    , 490,
    
    84 S. Ct. 889
    , 
    11 L. Ed. 2d 856
     (1964) (‘‘[n]o less than
    a tenant of a house, or the occupant of a room in a
    boarding house . . . a guest in a hotel room is entitled
    to constitutional protection against unreasonable searches
    and seizures’’ (citation omitted)); United States v.
    Stokes, 
    733 F.3d 438
    , 443 (2d Cir. 2013) (‘‘[a] person
    staying in a motel room has the same constitutional
    protection against unreasonable searches of that room
    as someone in his or her own home’’ (internal quotation
    marks omitted)); United States v. Stokes, supra, 443
    n.7 (‘‘[h]otel guests retain a legitimate expectation of
    privacy in the hotel room and in any articles located in
    their hotel room for the duration of their rental period’’);
    State v. Jackson, 
    304 Conn. 383
    , 397, 
    40 A.3d 290
     (2012)
    (‘‘[a] person who has rented a hotel room generally has
    a reasonable expectation of privacy in that location’’).
    In Benton, the police suspected that the defendant,
    Leonard R. Benton, was engaged in illegal narcotics
    activity, and, as part of their investigation into that
    activity, a police detective who was present in the apart-
    ment immediately adjacent to Benton’s apartment over-
    heard certain incriminating conversations. State v. Ben-
    ton, 
    supra, 94
    . It was undisputed that the detective
    had gained entry into that adjacent apartment with the
    permission of the tenant and, further, that the detective
    heard the conversations without the aid of any sensory
    enhancing devices. 
    Id.
     Citing to the general rule that
    ‘‘what a government agent perceives with his or her
    unaided senses, when lawfully present in a place where
    he or she has a right to be, is not an illegal search under
    the fourth amendment’’; id.; we rejected Benton’s claim
    that the eavesdropping violated his federal constitu-
    tional rights. 
    Id.,
     94–96. As we explained, ‘‘[c]onversa-
    tions carried on in any type of residence, or anywhere
    for that matter, in a tone audible to the unaided ear of
    a person located in a place where that person has a
    right to be, and where a person can be expected to be,
    are conversations knowingly exposed to the public.
    . . . [Such] [c]onversations . . . are not within the
    penumbra of fourth amendment protection.’’ (Citations
    omitted.) Id., 96. We also expressly acknowledged, how-
    ever, that the right of an apartment dweller or motel
    guest to be free from unreasonable searches and sei-
    zures ‘‘honors the justifiable expectation that if their
    conversations are conducted in a manner undetectable
    outside their room or residence by the electronically
    unaided ear they will not be intercepted.’’ Id., 95–96.
    Accordingly, the defendant contends that our holding
    in State v. Kono, supra, 
    324 Conn. 122
    , that a canine
    sniff targeted at a condominium located in a multiunit
    condominium complex is a search for which a warrant
    is required, also applies to a motel room.
    Applying the principles that we found to be determi-
    native in Kono, we agree with the defendant that the
    protection against a canine sniff afforded under the
    state constitution to a resident of a multiunit condomin-
    ium complex also extends to the occupant of a motel
    room. As we explain more fully in this opinion in
    addressing the state’s contrary arguments, we are not
    persuaded that the differences between the motel room
    at issue in the present case and the condominium unit
    at issue in Kono are weighty enough to justify a differ-
    ent result.
    In support of its contention that a canine sniff con-
    ducted immediately outside a motel room door is not
    a search, the state cites to a number of cases holding
    that the occupant of a motel room has a diminished
    expectation of privacy as compared to the resident of
    a home. In particular, the state, like the defendant, relies
    on State v. Benton, supra, 
    206 Conn. 90
    , in which we
    observed that ‘‘[t]he shared atmosphere and the near-
    ness of one’s neighbors in a hotel or motel or apartment
    in a multiple family dwelling . . . diminish the degree
    of privacy that one can reasonably expect or that society
    is prepared to recognize as reasonable.’’ 
    Id., 96
    . We
    supported this assertion in Benton with citations to
    several cases, including United States v. Mankani, 
    738 F.2d 538
     (2d Cir. 1984), in which the United States
    Court of Appeals for the Second Circuit observed that,
    ‘‘[u]nlike an apartment or a room in a boarding house,
    hotels and motels are not ordinarily considered places
    where one lives and keeps personal effects. In addition,
    service personnel in hotels and motels have keys to
    enter and make-up the rooms, remove dishes, check
    air-conditioning, heating and the like. Former occu-
    pants may even have retained a key to a hotel room.
    . . . In short, it is the transitory nature of such places,
    commonly understood as such, that diminishes a per-
    son’s justifiable expectation of privacy in them. Since
    a hotel room is exposed to others, it is unlike a house,
    [that is], a place where one lives.’’ (Internal quotation
    marks omitted.) 
    Id., 544
    ; see also State v. Benton,
    supra, 95–96.
    Similarly, in United States v. Agapito, 
    620 F.2d 324
    (2d Cir.), cert. denied, 
    449 U.S. 834
    , 
    101 S. Ct. 107
    , 
    66 L. Ed. 2d 40
     (1980), the court explained that, ‘‘[d]espite
    the fact that an individual’s [f]ourth [a]mendment rights
    do not evaporate when he rents a motel room, the extent
    of the privacy he is entitled to reasonably expect may
    very well diminish. For although a motel room shares
    many of the attributes of privacy of a home, it also
    possesses many features [that] distinguish it from a
    private residence . . . . A private home is quite differ-
    ent from a place of business or a motel cabin. A home
    owner or tenant has the exclusive enjoyment of his
    home, his garage, his barn or other buildings, and also
    the area under his home. But a transient occupant of
    a motel must share corridors, sidewalks, yards, and
    trees with the other occupants. Granted that a tenant
    has standing to protect the room he occupies, there is
    nevertheless an element of public or shared property
    in motel surroundings that is entirely lacking in the
    enjoyment of one’s home.’’ (Internal quotation marks
    omitted.) Id., 331.
    The state also notes that, in light of this reduced
    expectation of privacy in a motel room as distinguished
    from a private home, a significant number of courts
    have held that a canine sniff of a door in a motel hallway
    does not constitute a search. See United States v. Legall,
    
    585 Fed. Appx. 4
    , 5–6 (4th Cir. 2014) (concluding that
    canine sniff of hotel room did not violate fourth amend-
    ment because police did not enter curtilage of room
    and did not infringe on defendant’s reasonable expecta-
    tion of privacy insofar as canine sniff disclosed only
    presence of illegal narcotics in which defendant had
    no legitimate expectation of privacy), cert. denied, 
    574 U.S. 1183
    , 
    135 S. Ct. 1471
    , 
    191 L. Ed. 2d 415
     (2015);
    United States v. Roby, 
    122 F.3d 1120
    , 1124–25 (8th Cir.
    1997) (because canine sniff ‘‘could reveal nothing about
    noncontraband items’’ and odor of marijuana was in
    ‘‘plain smell’’ of dog, and because defendant had no
    reasonable expectation of privacy in hallway outside
    his hotel room, canine sniff conducted in hotel hallway
    was not search for fourth amendment purposes (inter-
    nal quotation marks omitted)); United States v. Lewis,
    Docket No. 1:15-CR-10 (TLS), 
    2017 WL 2928199
    , *8 (N.D.
    Ind. July 10, 2017) (because officers conducting canine
    sniff in open-air walkway of motel were entitled to be in
    that location and sniff could not reveal any information
    other than presence of illegal narcotics, sniff did not
    violate defendant’s legitimate privacy expectations,
    and, therefore, defendant’s fourth amendment rights
    were not implicated); United States v. Marlar, 
    828 F. Supp. 415
    , 419 (N.D. Miss. 1993) (because canine sniff
    revealed odors that were outside of motel room and
    officer had right to be on public sidewalk adjacent to
    defendant’s motel room, canine sniff did not violate
    defendant’s reasonable expectation of privacy pro-
    tected by fourth amendment), appeal dismissed, 
    68 F.3d 464
     (5th. Cir. 1995); State v. Foncette, 
    238 Ariz. 42
    , 45–46,
    
    356 P.3d 328
     (2015) (because officers were legally pres-
    ent in hotel hallway and canine sniff discloses only
    presence of contraband, sniff was not search for fourth
    amendment purposes); Nelson v. State, 
    867 So. 2d 534
    ,
    536–37 (Fla. App. 2004) (because officers conducting
    canine sniff of hotel hallway were entitled to be in
    hallway and ‘‘evidence in the plain smell may be
    detected without a warrant,’’ sniff did not violate defen-
    dant’s reasonable expectation of privacy under fourth
    amendment), review denied, 
    115 So. 3d 1001
     (Fla. 2013);
    People v. Lindsey, Docket No. 124289, 
    2020 WL 1880802
    ,
    *1 (Ill. April 16, 2020) (canine sniff in alcove outside of
    motel room was not search under fourth amendment
    because sniff revealed odors in alcove only, not inside
    of motel room), cert. denied,          U.S.     , 
    141 S. Ct. 2476
    , 
    209 L. Ed. 2d 534
     (2021); Wilson v. State, 
    98 S.W.3d 265
    , 272–73 (Tex. App. 2002, pet. ref’d) (because exte-
    rior door of hotel room was open to public and canine
    sniff revealed nothing about room but presence of
    cocaine, sniff was not search for fourth amendment
    purposes); Sanders v. Commonwealth, 
    64 Va. App. 734
    ,
    755, 
    772 S.E.2d 15
     (2015) (because police officers con-
    ducting canine sniff in motel walkway had right to be
    in that location and sniff did not reveal any information
    other than presence of contraband, there was no viola-
    tion of defendant’s reasonable expectation of privacy
    under fourth amendment).
    As the state acknowledges, however, these cases
    have focused primarily on two principles: first, that,
    because a canine sniff detects only the presence of
    illegal narcotics, it does not infringe on any legitimate
    expectation of privacy; see, e.g., Illinois v. Caballes,
    
    supra,
     
    543 U.S. 408
    –10 (canine sniff of motor vehicle
    does not implicate fourth amendment because there
    can be no expectation of privacy in contraband that
    society deems reasonable); United States v. Place,
    
    supra,
     
    462 U.S. 707
     (because canine sniff of luggage
    in airport ‘‘does not expose noncontraband items that
    otherwise would remain hidden from public view,’’ it
    is not search); and, second, customarily, the walkway
    or hallway of a motel is a location where the police,
    no less than the general public, are entitled to be, and
    that undisputedly was the case here. But cf. Florida v.
    Jardines, 
    supra,
     
    569 U.S. 11
     (‘‘[t]hat the officers learned
    what they learned only by physically intruding on [the
    defendant’s] property to gather evidence is enough to
    establish that a search occurred’’). As we previously
    explained in Kono, however, at least for purposes of the
    state constitution, the United States Supreme Court’s
    decisions in Caballes and Place are distinguishable from
    cases involving a canine sniff of a door to an apartment
    ‘‘because a canine sniff of a residence is entitled to
    significantly more protection than a canine sniff of an
    automobile or a piece of luggage at a public airport.’’
    State v. Kono, supra, 
    324 Conn. 112
    ; see also Florida v.
    Jardines, 
    supra,
     12–13 (Kagan, J., concurring) (canine
    sniff of front door of single-family residence violates
    reasonable expectation of privacy). We also empha-
    sized that ‘‘the question of lawful physical presence is
    distinct from the question of whether a canine sniff of
    the exterior of a person’s home impermissibly invades
    reasonable expectations of privacy in the home.’’ (Empha-
    sis added.) State v. Kono, supra, 109.
    The state maintains that these principles, applicable
    to apartments and condominiums under Kono, are inap-
    plicable to motel rooms for four primary reasons, none
    of which we find sufficiently convincing to persuade
    us that the canine sniff of the defendant’s motel room
    was not a search subject to the protections of article
    first, § 7. First, the state asserts that, in contrast to an
    apartment, a motel room most often serves merely as
    transitory quarters rather than a private, permanent
    residence.22 Although we agree generally with this
    observation, it is well settled that motel guests, like
    home dwellers, have a reasonable expectation of pri-
    vacy in their rooms. See, e.g., Stoner v. California,
    
    supra,
     
    376 U.S. 490
    ; State v. Benton, supra, 
    206 Conn. 95
    . The fact that a motel is not a home when, as is
    ordinarily the case, a stay there is temporary, does not,
    ipso facto, establish the scope of the privacy that tran-
    sient motel guests reasonably may expect. We believe,
    rather, that, in order to establish a reduced expectation
    of privacy in a particular motel room, the state must
    point to some specific attribute of the room that makes
    the type of intrusion at issue reasonable, even though
    that same intrusion would be unlawful if directed at a
    private home. Indeed, this court previously has recog-
    nized that those aspects of a hotel or motel that reduce
    a guest’s expectations of privacy but do not increase
    the vulnerability of guests to the particular type of
    intrusion at issue are irrelevant in assessing the legality
    of that intrusion. See State v. Benton, supra, 96 (‘‘[t]he
    type of dwelling is inconsequential except insofar as
    its physical attributes increase the vulnerability of its
    occupants to eavesdropping by the unaided ear’’). If it
    were otherwise, the only guidance that courts would
    have in determining whether certain conduct by the
    police constituted an unlawful search of a motel room
    would be the vague and conclusory statement that
    motel guests have a diminished expectation of privacy
    as compared to residents of private homes. In the pres-
    ent case, although the transitory nature of motel stays
    may render guests more vulnerable to warrantless intru-
    sions in some instances or respects; see, e.g., State
    v. Jackson, 
    supra,
     
    304 Conn. 398
     (hotel guest has no
    reasonable expectation of privacy in her room when
    she has left room with no intent to return); we do not
    agree with the state that it inevitably does so irrespec-
    tive of the circumstances.
    This court’s observation in Benton also belies the
    state’s second argument that, unlike an apartment,
    motel guests generally do not keep their personal
    effects in a motel room. Again, such guests ordinarily
    do not keep all of their personal effects in their rooms
    because a motel room frequently is a temporary accom-
    modation or lodging and not the guest’s permanent
    residence. That fact, however, does not mandate the
    conclusion that the personal effects that guests often
    do keep there—no matter how private or personal they
    may be—should be subject to appreciably less protec-
    tion under the law. On the contrary, we see no reason
    why a motel guest reasonably cannot expect a degree
    of privacy in his or her room sufficient to preclude
    random or arbitrary intrusions by the police.
    The state next maintains that, as we observed in State
    v. Benton, supra, 
    206 Conn. 96
    , ‘‘[t]he shared atmo-
    sphere and the nearness of one’s neighbors’’ in a motel
    setting reduce the extent to which a motel guest reason-
    ably may expect to retain his or her complete privacy.
    We acknowledge that this attribute of a motel and its
    rooms may diminish a guest’s expectations of privacy
    in some respects. For example, we observed in Benton
    that mere unaided eavesdropping on audible conversa-
    tions from an adjacent motel room is not a search. See
    
    id.,
     96–97. Similarly, if a guest does not make any effort
    to ensure that motel staff do not enter his room for
    cleaning or maintenance when he is not there, and the
    staff discovers evidence of illegal activity in the course
    of performing those tasks, the guest has no legitimate
    reason to complain. We do not agree, however, that a
    room occupied by a motel guest is more vulnerable to
    a warrantless canine sniff than an apartment, condo-
    minium or house simply because other guests occupy
    nearby rooms or because the rooms may be entered by
    motel staff to perform certain functions unless guests
    place a ‘‘Do Not Disturb’’ sign on the door.23
    We also disagree with the state’s final contention,
    namely, that the canine sniff was not a search under
    Kono because it occurred in an open-air walkway that
    was fully accessible to the public, whereas the sniff
    in Kono occurred in an interior corridor of a locked
    apartment building. See State v. Kono, supra, 
    324 Conn. 83
    –84. It is true that, in certain circumstances, an open-
    air walkway may make the activities in or the contents
    of a motel room more readily subject to detection, such
    as by simple visual surveillance or unaided eaves-
    dropping, than those of an apartment that is accessible
    only by way of a locked or enclosed corridor. As we
    explained, however, this court rejected the state’s claim
    in Kono that a warrantless canine sniff of the hallway
    adjacent to an apartment is undeserving of constitu-
    tional protection because a tenant reasonably can
    expect police officers, no less than members of the
    public generally, to gain access there, stating that, for
    purposes of the state constitution, a tenant’s ‘‘lack of
    a reasonable expectation of complete privacy in the
    hallway does not also mean that he had no reasonable
    expectation of privacy against persons in the hallway
    snooping into his apartment using sensitive devices not
    available to the general public.’’ (Internal quotation
    marks omitted.) State v. Kono, supra, 
    324 Conn. 114
    ;
    see also 
    id., 109
     (lawful presence of police located
    immediately outside door of home is not determinative
    of whether canine sniff conducted at that location vio-
    lates homeowner’s reasonable expectation of privacy).
    We see no reason why the fact that the police in the
    present case were lawfully present in an open-air walk-
    way abutting the defendant’s motel room makes any
    appreciable difference with respect to this analysis. The
    relevant question is not how easy it may be to gain
    lawful access to the door of a particular dwelling or
    lodging, but what conduct those occupying that space
    reasonably may expect from persons who actually have
    such access. Thus, as we stated in Kono, an apartment
    dweller’s ‘‘lack of a right to exclude [others from access
    to common areas does] not mean [that] he [has] no right
    to expect certain norms of behavior in his apartment
    hallway. [To be sure], other [apartment] residents and
    their guests (and even their dogs) can pass through the
    hallway. They are not entitled, though, to set up chairs
    and have a party in the hallway right outside the door.
    Similarly, the fact that a police officer might lawfully
    walk by and hear loud voices from inside an apartment
    does not mean [that] he could put a stethoscope to the
    door to listen to all that is happening inside.’’ (Internal
    quotation marks omitted.) 
    Id.,
     113–14.
    Significantly, in Florida v. Jardines, 
    supra,
     
    569 U.S. 1
    , the United States Supreme Court employed similar
    reasoning in concluding that the fourth amendment pro-
    hibits the police from conducting a warrantless canine
    sniff at the front door of a private home. See 
    id.,
     8–9,
    11–12. Although the court decided the case on the basis
    of common-law property principles and therefore had
    no need to apply the reasonable expectation of privacy
    test; see 
    id.,
     5–6, 11; its analysis nevertheless bears on
    the claim at issue in the present case. After first observ-
    ing that ‘‘the knocker on the front door [of a home] is
    treated as an invitation or license to attempt an entry,
    justifying ingress to the home by solicitors, hawkers
    and peddlers of all kinds’’; (internal quotation marks
    omitted) 
    id., 8
    ; the court continued: ‘‘This implicit
    license typically permits the visitor to approach the
    home by the front path, knock promptly, wait briefly
    to be received, and then (absent invitation to linger
    longer) leave. Complying with the terms of that tradi-
    tional invitation does not require fine-grained legal
    knowledge; it is generally managed without incident by
    the [n]ation’s Girl Scouts and trick-or-treaters. Thus, a
    police officer not armed with a warrant may approach
    a home and knock, precisely because that is no more
    than any private citizen might do.’’ (Footnote omitted;
    internal quotation marks omitted.) 
    Id.
     As the court fur-
    ther explained, however, that license does not extend
    to a canine sniff: ‘‘But introducing a trained police dog
    to explore the area around the home in hopes of dis-
    covering incriminating evidence is something else.
    There is no customary invitation to do that. . . . To
    find a visitor knocking on the door is routine (even
    if sometimes unwelcome); to spot that same visitor
    exploring the front path with a metal detector, or
    marching his bloodhound into the garden before saying
    hello and asking permission, would inspire most of us
    to—well, call the police. The scope of a license—
    express or implied—is limited not only to a particular
    area but also to a specific purpose. . . . [T]he back-
    ground social norms that invite a visitor to the front
    door do not invite him there to conduct a search.’’
    (Emphasis in original; footnote omitted.) 
    Id., 9
    . Despite
    the differences between a motel room and a home,
    similar norms apply to the conduct of visitors lawfully
    on motel property: motel guests reasonably do not
    expect that the foot traffic generally associated with
    an open-air walkway abutting the motel’s guestrooms
    includes law enforcement officers trolling the walkway
    with a trained police dog in search of contraband in
    those rooms.
    We note, in addition, that, if the state were correct
    that a canine sniff of the exterior door of a motel room
    is an event altogether lacking in constitutional signifi-
    cance, the police would be entitled to roam through
    the corridors of a motel conducting canine sniffs of
    some or all of the doors to those rooms despite having
    no particularized cause to believe that any of them
    contained drugs. In tacit acknowledgment that our citi-
    zenry would find this conduct unacceptable, the state
    asserts that there is no reason to believe that the police
    in Connecticut would engage in such a trawling exer-
    cise, even though they could do so lawfully. Even if we
    shared the state’s confidence in that regard, however,
    the fact that it would be legally permissible for the
    police to go from door to door conducting suspicionless
    canine sniffs throughout the motel is itself reason to
    doubt the soundness of the state’s constitutional argu-
    ment. Cf. State v. Kono, supra, 
    324 Conn. 115
     (express-
    ing concern, in context of canine sniff conducted at
    front door of condominium located in multiunit condo-
    minium complex, ‘‘that, if police officers are permitted
    to conduct warrantless canine [sniffs] of people’s
    homes, there is nothing to prevent [them] from applying
    the procedure in an arbitrary or discriminatory manner,
    or based on whim and fancy, at the home of any citizen,
    and that [s]uch an open-ended policy invites overbear-
    ing and harassing conduct’’ (internal quotation marks
    omitted)).
    The state’s reliance on United States v. Hayes, 
    551 F.3d 138
     (2d Cir. 2008), to support its claim to the
    contrary is misplaced. In Hayes, the police conducted
    a canine sniff of the property surrounding the outside
    perimeter of the home of the defendant, Derrick Hayes,
    and the dog alerted to a bag of illegal drugs located in
    scrub brush, about ten to fifteen feet thick, approxi-
    mately sixty-five feet from the back door of the house
    and on the border of the neighboring property. 
    Id.,
     141–
    42, 145. Hayes sought to suppress the drugs on the
    ground that the canine sniff constituted an unlawful
    warrantless search. 
    Id., 142
    . The court concluded that
    Hayes ‘‘had no legitimate expectation of privacy in the
    front yard of his home insofar as the presence of the
    scent of narcotics in the air was capable of being sniffed
    by the police canine,’’ primarily because the ‘‘front yard
    where the dog sniff occurred was clearly within plain
    view of the public road and adjoining properties’’ and
    the ‘‘canine’s sense of smell was directed [toward] an
    area [sixty-five] feet behind the back door of the home.’’
    
    Id. 145
    . The court also explained that the decision of
    the United Statutes Supreme Court in Kyllo v. United
    States, 
    533 U.S. 27
    , 40, 
    121 S. Ct. 2038
    , 
    150 L. Ed. 2d 94
    (2001), holding that the use of a thermal imaging device
    to detect temperature variations inside a home was an
    unreasonable search in violation of the fourth amend-
    ment, and the decision of the United States Court of
    Appeals for the Second Circuit in United States v.
    Thomas, 
    757 F.2d 1359
    , 1367 (2d Cir.), cert. denied sub
    nom. Fisher v. United States, 
    474 U.S. 819
    , 
    106 S. Ct. 66
    , 
    88 L. Ed. 2d 54
     (1985), and cert. denied sub nom.
    Wheelings v. United States, 
    474 U.S. 819
    , 
    106 S. Ct. 67
    ,
    
    88 L. Ed. 2d 54
     (1985), and cert. denied sub nom. Rice
    v. United States, 
    479 U.S. 818
    , 
    107 S. Ct. 78
    , 
    93 L. Ed. 2d 34
     (1986), holding that a canine sniff of the door to
    an apartment was an unlawful search, were distinguish-
    able because, in those cases, the police were trying
    to detect information inside of the defendant’s home.
    United States v. Hayes, 
    supra, 145
    . Thus, the court
    left open the possibility that initiating a canine sniff to
    detect odors emanating from inside of a home would
    violate the homeowner’s reasonable expectations of
    privacy, even if the sniff occurred at a location that
    was in plain view of the public and in which the subject
    of the search had no legitimate expectation of privacy.
    In any event, it clearly is not the case that every war-
    rantless canine sniff of a dwelling that occurs within
    plain view of adjacent roads or parking lots is lawful;
    see, e.g., Florida v. Jardines, 
    supra,
     
    569 U.S. 4
    , 11–12
    (warrantless canine sniff on front porch of private
    dwelling is search for fourth amendment purposes);
    and Hayes provides no guidance on the issue of whether
    the common walkway area immediately adjacent to a
    motel room door is more analogous to the open yard
    of a private home, which was the situation in Hayes, or
    to the home’s front porch, as was the case in Jardines.24
    For all the foregoing reasons, we conclude that the
    canine sniff of the exterior door to the defendant’s motel
    room was a search for purposes of article first, § 7. The
    state nevertheless contends that, insofar as the canine
    sniff was a search, it was reasonable and, therefore,
    lawful under that state constitutional provision. We
    therefore turn to that issue.
    III
    WARRANT REQUIREMENT
    The state claims that, even if the canine sniff of the
    door to the defendant’s motel room was a search, it
    passes muster under article first, § 7, because it was
    supported by a reasonable and articulable suspicion
    that there were illicit drugs in the room. In the state’s
    view, a warrant predicated on probable cause is not
    required for a canine sniff of the exterior door to a motel
    room; rather, the state maintains, the requirements of
    article first, § 7, are satisfied if such a search is founded
    on a reasonable and articulable suspicion. We disagree
    with the state that a warrant is not required in such
    circumstances.25
    As the state observes, and as we recognized in State
    v. Kono, supra, 
    324 Conn. 116
    –17, a number of courts
    have concluded that a canine sniff of the door of an
    apartment or condominium in a multiunit building is a
    lawful search if it is based on a reasonable and articula-
    ble suspicion rather than on probable cause. See Fitz-
    gerald v. State, 
    384 Md. 484
    , 512, 
    864 A.2d 1006
     (2004)
    (declining to decide whether canine sniff of door to
    apartment was search under Maryland constitution
    because, even if it was, police had reasonable and arti-
    culable suspicion to conduct canine sniff, which is all
    that is required); State v. Davis, 
    732 N.W.2d 173
    , 181–82
    (Minn. 2007) (reasonable and articulable suspicion is
    needed under Minnesota constitution to conduct canine
    sniff immediately outside apartment door); State v.
    Ortiz, 
    257 Neb. 784
    , 796, 
    600 N.W.2d 805
     (1999) (only
    reasonable and articulable suspicion is needed under
    Nebraska constitution); People v. Dunn, 
    77 N.Y.2d 19
    ,
    25–26, 
    564 N.E.2d 1054
    , 
    563 N.Y.S.2d 388
     (1990) (only
    reasonable and articulable suspicion is needed under
    New York constitution), cert. denied, 
    501 U.S. 1219
    , 
    111 S. Ct. 2830
    , 
    115 L. Ed. 2d 1000
     (1991); see also Hoop v.
    State, 
    909 N.E.2d 463
    , 469–70 (Ind. App. 2009) (reason-
    able suspicion is required under Indiana constitution
    before conducting canine sniff of private residence in
    order to restrict arbitrary police action). Like the courts
    that have held that a canine sniff outside the door to
    a motel or hotel room is not a search, the courts that
    have held that a sniff outside the door to an apartment
    is lawful if supported by a reasonable and articulable
    suspicion have reasoned that a canine sniff is minimally
    intrusive because it detects only illegal drugs, that it
    occurs in a place where the police are lawfully entitled
    to be, and that it is an investigative technique of signifi-
    cant utility to the police. See Fitzgerald v. State, supra,
    510 (noting nonintrusive nature of search and its signifi-
    cant value to police); State v. Davis, supra, 179–82 (not-
    ing that police were in location where they were entitled
    to be, that canine sniff is minimally intrusive, and that
    sniff has significant utility to police); State v. Ortiz,
    
    supra,
     794–96 (canine sniff of threshold to apartment
    that is supported by reasonable and articulable suspi-
    cion is lawful if police are entitled to be where sniff
    occurred because of nonintrusive nature of sniff); Peo-
    ple v. Dunn, 
    supra, 26
     (noting nonintrusive nature of
    canine sniff and its significant value to police).
    The state also notes that, in State v. Waz, 
    240 Conn. 365
    , 
    692 A.2d 1217
     (1997), this court, assuming that
    subjecting a mail parcel in the possession of the United
    States Postal Service to a canine sniff was a search,
    held that the search was lawful under article first, § 7,
    because it was based on a reasonable and articulable
    suspicion. Id., 383–84. Similarly, in State v. Torres, 
    230 Conn. 372
    , 
    645 A.2d 529
     (1994), this court, without
    deciding whether a canine sniff of the exterior of a car
    following a traffic stop is a search, held that it was
    lawful for the same reason, that is, because it was sup-
    ported by a reasonable and articulable suspicion. 
    Id.,
    381–82.
    As we noted previously; see footnote 21 of this opin-
    ion; in Kono, the state’s sole claim was that the canine
    sniff of the front door of the condominium unit at issue
    was not a search and, therefore, the police were free
    to conduct the sniff without a warrant and without
    any reason to believe that there were drugs inside the
    condominium. See State v. Kono, supra, 
    324 Conn. 89
    .
    The state made no claim in Kono that, in the event we
    were to conclude that the canine sniff was a search,
    the use of that technique by the police nevertheless
    satisfied constitutional requirements because it was
    supported by a reasonable and articulable suspicion.
    See 
    id.,
     86 n.4, 122 n.21. Having had no occasion to
    address that issue, we also had no reason to deviate
    from the general rule that, under article first, § 7, a
    search is lawful only if it has been authorized by a
    warrant founded on probable cause. E.g., id., 91 (search
    conducted without warrant issued upon probable cause
    is presumptively unreasonable). We gave no indication
    in Kono, however, that we believed that condominiums
    and apartments are meaningfully distinguishable from
    private homes in regard to the cause necessary to justify
    a canine sniff of those dwellings. On the contrary, our
    analysis in Kono belies any such suggestion. First, as
    we already explained, in Kono, this court rejected the
    state’s arguments that a canine sniff of an apartment
    is not a search because it reveals only the presence of
    illegal drugs; see id., 109–12; and that it is not unlawful
    if performed in a place where the police were entitled
    to be; see id., 109; because an apartment, like a private
    residence, is a home. We also explained that distinguish-
    ing between single-family dwellings and dwellings in
    a multiunit building in this context ‘‘would be deeply
    troubling because it would apportion [constitutional]
    protections on grounds that correlate with income,
    race, and ethnicity.’’ (Internal quotation marks omit-
    ted.) Id., 121. We further stated, with respect to those
    state courts that have concluded that a canine sniff of
    the front door of a single-family home requires a warrant
    supported by probable cause, that, ‘‘[b]ecause these
    courts based their rulings on the reasonable expectation
    of privacy test recognized in Katz [v. United States,
    
    389 U.S. 347
    , 
    88 S. Ct. 507
    , 
    19 L. Ed. 2d 576
     (1967)],
    their holdings logically would extend to all residences
    within their states.’’ (Emphasis added.) State v. Kono,
    supra, 117. Moreover, in citing Justice Kagan’s concur-
    ring opinion in Jardines with approval, we, like Justice
    Kagan, placed our imprimatur on the principle that any
    action taken by the police vis-à-vis a home that is suffi-
    ciently invasive to constitute a search, including a
    canine sniff of the door to the home, implicates the
    reasonable expectations of privacy of those residing in
    the home and, in the absence of exigent circumstances,
    requires a warrant that must be supported by probable
    cause.26 Id., 99 (indicating that, as Justice Kagan sug-
    gested in her concurrence in Jardines, warrantless
    search of home is never constitutional in absence of
    exigent circumstances because such search invades
    heightened privacy expectations in home), citing Flor-
    ida v. Jardines, 
    supra,
     
    569 U.S. 12
    –14 (Kagan, J., con-
    curring); cf. State v. Jacques, supra, 
    332 Conn. 278
     (‘‘The
    capacity to claim the protection of the fourth amend-
    ment does not depend [on] a property interest, perma-
    nency of residence, or payment of rent but [on] whether
    the person who claims fourth amendment protection
    has a reasonable expectation of privacy in the invaded
    area. . . . [A] person is entitled to fourth amendment
    protection anywhere he resides where he has a reason-
    able expectation of privacy.’’ (Citations omitted; inter-
    nal quotation marks omitted)). We also underscored
    this state’s strong preference for warrants under article
    first, § 7. See, e.g., State v. Kono, supra, 113. Although
    there are a few limited, narrowly tailored exceptions
    to this preference, which, as a rule, ‘‘arise out of
    acknowledged interests in protecting the safety of the
    police and the public and in preserving evidence,’’ we
    explained that ‘‘the use of a canine sniff for drugs in
    response to an anonymous tip will rarely, if ever, rise
    to the level of urgency required by these precedents.’’
    (Internal quotation marks omitted.) Id. In light of the
    foregoing, it is not surprising that, in Kono, we stated
    our holding as follows: ‘‘[W]e conclude that a canine
    sniff directed toward a home—whether freestanding or
    part of a multitenant structure—is a search under article
    first, § 7, and, as such, requires a warrant issued upon
    a court’s finding of probable cause.’’ Id., 122. For all
    these reasons, cases from other jurisdictions holding
    that a canine sniff of the door to an apartment is lawful
    if supported by a reasonable and articulable suspicion
    are incompatible with our reasoning and holding in
    Kono. We conclude, therefore, that a canine sniff of the
    door to an apartment is a search requiring a warrant
    supported by probable cause.
    Of course, it does not necessarily follow from this
    determination that a canine sniff of the door to a motel
    room is also a search for which a warrant based on
    probable cause is required. We repeatedly emphasized
    in Kono that our decision in that case rested in no small
    measure on the fact that an apartment is a home; see
    id., 112 (‘‘[b]oth this court and the United States
    Supreme Court have drawn a bright line around the
    home’’); id. (‘‘respect for the sanctity of the home is
    at the very core of the fourth amendment’’ (internal
    quotation marks omitted)); and we acknowledge that,
    most often, guests staying at a motel do not live there.
    Although, as in Kono, we recognize that one’s privacy
    interests are greatest in his or her home; id. 120–21;
    our determination in the present case that a canine sniff
    of the exterior door to a motel room is a search for
    purposes of article first, § 7, is predicated on the similar-
    ities in the nature of the privacy interests implicated
    by a canine sniff of the outside of a motel room and a
    canine sniff of the outside of an apartment or condomin-
    ium. We believe that these similarities also militate in
    favor of the conclusion that, under article first, § 7, a
    canine sniff of the exterior door to a motel room is
    subject to the same warrant requirement as a canine
    sniff of the door to a residence. Furthermore, as we
    previously noted, the few recognized exemptions from
    the warrant requirement invariably involve searches
    conducted under circumstances requiring immediate
    action by the police, generally, in the interest of police
    or public safety; see, e.g., State v. Miller, supra, 
    227 Conn. 383
    ; a consideration that is not implicated by a
    canine sniff performed to ascertain whether a motel
    room contains unlawful drugs.
    Finally, our conclusion finds significant support in
    the fact that ‘‘Connecticut has long had a strong policy
    in favor of warrants under article first, § 7, a policy that
    has been held to [provide] broader protection than the
    fourth amendment in certain contexts.’’ (Internal quota-
    tion marks omitted.) State v. Kono, supra, 
    324 Conn. 113
    . ‘‘Indeed, [u]nder the state constitution, all war-
    rantless searches, [regardless of] whether . . . the
    police have probable cause to believe that a crime was
    committed, are per se unreasonable, unless they fall
    within one of a few specifically established and well
    delineated exceptions to the warrant requirement.’’
    (Emphasis added; internal quotation marks omitted.)
    
    Id.
     In other words, a search or seizure conducted with-
    out a warrant issued upon probable cause is presumed
    to be unreasonable; State v. Waz, supra, 
    240 Conn. 374
    n.16; and the state’s heavy burden of overcoming that
    presumption is met only in certain exceptional or com-
    pelling circumstances. See 
    id.,
     374–75 n.16 (identifying
    limited exceptions to warrant requirement). Due to the
    substantial privacy interests an individual has in his
    or her motel room, because canine sniffs for drugs
    generally are not conducted to address urgent concerns
    related to police and public safety, and ‘‘[i]n light of
    our demonstrated constitutional preference for war-
    rants and our concomitant obligation narrowly to cir-
    cumscribe exceptions to the state constitutional war-
    rant requirement’’; State v. Miller, supra, 
    227 Conn. 386
    ;
    we are not persuaded that an exemption from the war-
    rant requirement should be extended to a canine sniff
    of the exterior door to a motel room, as the state advo-
    cates. We believe, rather, that, in the present context,
    the ‘‘balance between law enforcement interests and
    [an individual’s] privacy interests . . . tips in favor’’ of
    the latter, given that ‘‘our state constitutional prefer-
    ence for warrants [occupies the] dominant place in that
    balance . . . .’’ Id., 385. Accordingly, we reject the
    state’s claim that a canine sniff of the exterior door to
    a motel room is lawful if supported by a reasonable
    and articulable suspicion and conclude, instead, that
    such a search satisfies state constitutional requirements
    only if it follows the issuance of a warrant founded on
    probable cause.
    IV
    THE CANINE SNIFF AND THE INDEPENDENT
    SOURCE DOCTRINE
    We next address the state’s contention that, even if
    the canine sniff of the exterior door to the defendant’s
    motel room violated the state constitution, the evidence
    seized from the room was admissible under the indepen-
    dent source doctrine. Before considering the applicabil-
    ity of the doctrine to the facts of the present case,
    however, we set forth the principles underlying it. ‘‘It
    is well recognized that the exclusionary rule has no
    application [when] the [g]overnment learned of the evi-
    dence from an independent source. . . . Independent
    source, in the exclusionary rule context, means that
    the tainted evidence was obtained, in fact, by a search
    untainted by illegal police activity. . . . The doctrine
    is based on the premise that the interest of society in
    deterring unlawful police conduct and the public inter-
    est in having juries receive all probative evidence of a
    crime are properly balanced by putting the police in
    the same, not a worse, position that they would have
    been in if no police error or misconduct had occurred.’’
    (Citations omitted; emphasis in original; internal quota-
    tion marks omitted.) State v. Cobb, 
    251 Conn. 285
    , 333,
    
    743 A.2d 1
     (1999), cert. denied, 
    531 U.S. 841
    , 
    121 S. Ct. 106
    , 
    148 L. Ed. 2d 64
     (2000).
    ‘‘To determine whether [a] warrant was independent
    of the illegal entry, one must ask whether it would have
    been sought even if what actually happened had not
    occurred . . . . That is to say, what counts is whether
    the actual illegal search had any effect in producing the
    warrant . . . .’’ Murray v. United States, 
    487 U.S. 533
    ,
    542 n.3, 
    108 S. Ct. 2529
    , 
    101 L. Ed. 2d 472
     (1988); see
    also State v. Cobb, supra, 
    251 Conn. 335
     (explaining
    that ‘‘the decision to seek the warrant [for the search
    of the defendant’s car] was not prompted by the infor-
    mation gleaned from the [prior] illegal conduct’’ because
    evidence established ‘‘that the decision to seek the war-
    rant would have been the same irrespective of the pre-
    warrant discovery of the small amount of tainted infor-
    mation’’). In other words, a prior illegal entry by the
    police does ‘‘not require suppression of evidence subse-
    quently discovered at those premises when executing
    a search warrant obtained on the basis of information
    wholly unconnected with the [unlawful] entry.’’ Murray
    v. United States, supra, 535. Consequently, a source
    of information is not ‘‘genuinely independent’’ of the
    unlawful intrusion if the information gleaned from that
    intrusion is necessary to establish probable cause. Id.,
    542. Thus, to prevail under the independent source doc-
    trine, the state must establish both that the warrant
    was supported by probable cause derived from sources
    entirely separate and distinct from the prior illegal entry
    and that the police would have applied for the warrant,
    even if they had not acquired the tainted information.27
    See id., 541–42 and n.3; State v. Vivo, 
    241 Conn. 665
    ,
    672–73, 677–78, 
    697 A.2d 1130
     (1997). When those two
    requirements are met, the otherwise suppressible evi-
    dence will be admissible because the prior unlawful
    entry ‘‘did not contribute in any way to [the] discovery
    of the evidence seized under the warrant’’; Segura v.
    United States, 
    468 U.S. 796
    , 815, 
    104 S. Ct. 3380
    , 
    82 L. Ed. 2d 599
     (1984); thereby ensuring that the discovery
    was the product of a source truly independent of any
    illegality. See 
    id.
    With these principles in mind, we turn to the state’s
    contention under the independent source exception to
    the warrant requirement. As a threshold matter, the
    state maintains that, because the defendant did not
    contest the propriety of the canine sniff in the trial
    court, the state never had the opportunity to demon-
    strate that the police would have sought the warrant
    irrespective of the canine sniff and that, as a conse-
    quence, the record is inadequate for our review of the
    defendant’s unpreserved constitutional claim. Accord-
    ing to the state, we should decline to consider the defen-
    dant’s claim because of the unfairness that would result
    due to the state’s inability to present evidence support-
    ing its contention that any constitutional impropriety
    in its reliance on the canine sniff was obviated by the
    independent source doctrine.28 The state further con-
    tends that, if we conclude to the contrary that the record
    is adequate for review, the lawfully obtained informa-
    tion set forth in the search warrant affidavit—that is,
    information that the police obtained wholly unrelated
    to the canine sniff—constituted probable cause to
    search the defendant’s motel room. With respect to the
    requirement that the police would have sought a search
    warrant irrespective of the canine sniff, the state con-
    tends that the record, even if deemed adequate for
    review, is nevertheless ambiguous as to that require-
    ment, an ambiguity that, the state further asserts,
    ‘‘favors the state because the defendant will not have
    borne his burden of producing evidence establishing
    that the seized evidence was tainted by the illegality.’’
    In response, the defendant argues that the record is
    adequate for review because, although the state conced-
    edly had no occasion to adduce facts at the suppression
    hearing relating specifically to its independent source
    claim relative to the canine sniff, the state did present
    testimony to support its independent source claim rela-
    tive to the visual sweep, which, according to the defen-
    dant, is the same testimony that the state would have
    adduced for purposes of demonstrating a source inde-
    pendent of the canine sniff. The defendant also con-
    tends that, in light of that testimony, the state cannot
    meet its burden of establishing an independent source,
    first, because the evidence discovered by the police
    that was untainted by the canine sniff did not rise to
    the level of probable cause to search the room and,
    second, because the testimony did not establish that
    the police would have sought the warrant even if the
    canine sniff had never occurred. We conclude that the
    information available to the police unrelated to the
    canine sniff was sufficient to establish probable cause
    for the search, but we further conclude, for the reasons
    that follow, that a remand is necessary to afford the
    state the opportunity to demonstrate that the police
    would have sought the warrant regardless of the canine
    sniff.29
    We turn first to the issue of whether, as the defendant
    claims, the record is adequate for review of the state’s
    independent source claim with respect to the canine
    sniff. The state does not appear to dispute, and we
    agree, that the record is adequate for review of the first
    part of the two part test, that is, whether the warrant
    affidavit contained information establishing probable
    cause derived from sources entirely unconnected to the
    canine sniff. Accordingly, with respect to that compo-
    nent of the test, we must determine whether the facts
    untainted by the canine sniff were sufficient, standing
    alone, to support the issuance of the warrant. We agree
    with the state that they were.30
    The following facts bear on the issue of whether the
    police had probable cause to search the motel room
    independent of the canine sniff. Sergeant Broems
    observed the Yukon in which Taveras was a passenger
    pull up to the motel around 1:20 a.m., at which time
    Taveras exited the vehicle, entered room 118 for about
    one minute, exited the room, and reentered the Yukon,
    which then drove off. The area was known for drug
    activity, and, on the basis of his training and experience,
    Sergeant Broems believed that Taveras’ conduct likely
    involved a drug transaction. After promptly stopping the
    vehicle, the police detected a strong smell of marijuana,
    and, upon searching Taveras, they discovered five glass
    jars, two of which contained marijuana, and a knotted
    corner of a plastic sandwich bag containing heroin. The
    operator of the vehicle, Brickman, told the police that
    Taveras was staying at the motel but that he did ‘‘[not]
    know what [Taveras] was getting’’ when he entered and
    then quickly exited the motel room. After Taveras told
    the police that he was living with his grandmother, the
    police went to her home and, with his grandmother’s
    consent, searched Taveras’ room, where they found
    numerous plastic bags with the corners cut off, consis-
    tent with narcotics packaging, along with other bags
    containing an off-white powder residue. According to
    his brother, Taveras was in the process of moving out
    of that house.
    When the police returned to the motel, they learned
    that it had been rented by an individual named ‘‘Victor
    Taveras,’’ who the police believed was probably Eudy
    Taveras, and the defendant. Shortly thereafter, Sergeant
    O’Brien observed the defendant walking toward him
    on Home Court. Upon seeing Sergeant O’Brien, the
    defendant immediately changed direction and began
    walking east on East Main Street. Sergeant O’Brien
    approached the defendant, who was found to have a
    large amount of cash and a key to room 118 on his
    person. Sergeant O’Brien then informed the defendant
    that the police had arrested Taveras and that ‘‘the jig
    is up,’’ to which the defendant responded, ‘‘nothing in
    the room is mine,’’ implying that there was something
    in the room with which the defendant did not want to
    be associated.31
    These facts established probable cause to search the
    room for evidence of narcotics offenses. The informa-
    tion developed by the police that was unrelated to the
    canine sniff demonstrated that Taveras was staying in
    the room, that he was involved with drugs, and that he
    likely also was selling drugs. Moreover, the room was
    linked to drugs by virtue of Sergeant Broems’ belief,
    based on his training and experience, that Taveras was
    engaged in a drug transaction when he entered and
    immediately exited the room in the middle of the night.
    Finally, the probability that there were drugs or drug
    related items in the room was enhanced by the defen-
    dant’s self-serving statement to the police, who discov-
    ered a large quantity of cash and a key to the room
    in his possession, denying that anything in the room
    belonged to him. On the basis of these facts, we agree
    with the Appellate Court that the evidence was suffi-
    cient to ‘‘persuade a reasonable person to believe that
    criminal activity had occurred [and that it] would also
    lead a reasonable person to conclude that there was a
    fair probability that contraband or evidence of that
    crime would be found in room 118.’’32 State v. Correa,
    supra, 
    185 Conn. App. 336
    .
    With respect to the requirement that the police would
    have sought a search warrant based on this information
    irrespective of the canine sniff, the following additional
    facts and procedural history are relevant. As we dis-
    cussed previously, the defendant filed a motion to sup-
    press the evidence seized from his motel room on the
    ground that Sergeant Broems’ visual sweep of the room,
    which occurred after the canine sniff, required a search
    warrant supported by probable cause. In response to
    the defendant’s motion to suppress, the state argued
    that the visual sweep was permitted under the exigent
    circumstances exception to the warrant requirement to
    prevent the destruction of evidence but that, even if
    the sweep could not be justified on that basis, the seized
    evidence was admissible under the independent source
    doctrine. To establish the applicability of that doc-
    trine—which was dependent on proof that the decision
    to seek a search warrant was made before the officers
    conducted the visual sweep of the defendant’s motel
    room, thereby demonstrating that the fruits of the
    sweep played no role in the warrant application deci-
    sion—the state adduced the suppression hearing testi-
    mony of Sergeants Broems and O’Brien regarding the
    timing of the decision to seek a warrant.
    In that testimony, Sergeants Broems and O’Brien
    explained that the decision to apply for a warrant was
    made before the visual sweep of the defendant’s motel
    room occurred, and the trial court’s memorandum of
    decision reflects its finding confirming that sequence
    of events. In the course of their testimony, however,
    Sergeants Broems and O’Brien also explained that the
    decision to seek the search warrant was made after
    Cooper, the canine officer, alerted to the presence of
    drugs inside the defendant’s motel room. More particu-
    larly, following testimony by Sergeant O’Brien concern-
    ing his decision to conduct the canine sniff of exterior
    door to the room and the manner in which he conducted
    it, the prosecutor asked him: ‘‘Now, while you’re run-
    ning Cooper up and down the hallway past the [m]otel
    rooms . . . what else is . . . going on?’’ Sergeant
    O’Brien responded that Sergeant Broems was speaking
    by phone to the shift commander, Lieutenant Mazzucco,
    and to Sergeant Novia, who were at police headquarters,
    and that Officer Sheperis remained in his patrol car
    with Taveras, who was being detained. The prosecutor
    then inquired of Sergeant O’Brien: ‘‘So now, armed with
    all of this information that you currently have, do you,
    Sergeant Broems, and Officer Sheperis make a decision
    at this point in time?’’ Sergeant O’Brien responded:
    ‘‘Yeah, at that point, it was determined that . . . we
    were going to head back to headquarters and start typ-
    ing the search warrant application for that [m]otel
    room.’’
    Subsequently, on redirect examination, the prosecu-
    tor posed the following question to Sergeant O’Brien:
    ‘‘There was a line of questioning during [cross-examina-
    tion], which seemed to suggest that, possibly, you and
    your fellow investigating officers only decided to . . .
    get a search warrant . . . after [the visual sweep of]
    the room. But it’s your testimony that that’s not, in
    fact, the case, correct? ‘‘Sergeant O’Brien responded:
    ‘‘Correct.’’ The prosecutor then asked him: ‘‘And when
    did you determine . . . to get a search warrant for
    the room, initially?’’ Sergeant O’Brien answered: ‘‘When
    Sergeant Broems and Officer Sheperis began to trans-
    port Taveras into headquarters initially, and that was
    after . . . the canine search.’’33
    The prosecutor elicited similar testimony from Ser-
    geant Broems. Specifically, she asked Sergeant Broems
    whether he could ‘‘enumerate’’ for the court ‘‘what infor-
    mation [he] . . . believed [rose] to the level of proba-
    ble cause for a search warrant’’ for the defendant’s
    motel room at the time he headed to police headquarters
    to seek the warrant. Sergeant Broems responded that
    the decision to seek a search warrant was based on all
    of the evidence that had been obtained that evening,
    which included the canine sniff of the room. After sum-
    marizing the evidence gathered prior to the canine sniff,
    Sergeant Broems completed his answer to the prosecu-
    tor’s question as follows: ‘‘[A]t that point, [Sergeant
    O’Brien] does a narcotics sniff of the four rooms which
    . . . was new to me; I’ve never done something like
    that, which . . . was more building upon probable
    cause.
    ‘‘And then we’re speaking with people [namely, the
    shift supervisor, Lieutenant Mazzucco, and Sergeant
    Novia], making sure we have enough [evidence],
    because I’d have to wake up Your Honor or a judge at
    that time [to obtain a warrant for the defendant’s room].
    So, that’s really what my concerns were, or was [the]
    decision making at that time.
    ‘‘So, I believed I had enough to get a search warrant
    after discussing it with the shift lieutenant. And we
    were basing all of that probable cause on the fact of
    getting a search warrant for that room.’’
    For purposes of the suppression hearing, it is appar-
    ent that the state was on notice of the significance of
    the sequence of the events leading up to the officers’
    decision to obtain the warrant. The state, however, was
    not on notice of the import of what the officers would
    have done if the canine sniff had not occurred. It is
    that issue—whether the officers would have sought a
    warrant even if Sergeant O’Brien had not conducted
    the canine sniff—that is critical to the determination
    of whether the independent source doctrine renders
    the seized evidence admissible despite the canine sniff.
    See, e.g., United States v. Johnson, 
    994 F.2d 980
    , 987 (2d
    Cir.) (to determine applicability of independent source
    doctrine, court ‘‘must consider whether the agents
    would have applied for a warrant had they not [engaged
    in the unlawful search] beforehand’’), cert. denied, 
    510 U.S. 959
    , 
    114 S. Ct. 418
    , 
    126 L. Ed. 2d 364
     (1993).
    Because, however, the defendant did not raise the issue
    of the constitutionality of the canine sniff in the trial
    court, the state had no reason to adduce evidence dem-
    onstrating that the police were, in fact, prepared to seek
    a search warrant prior to the sniff or that they otherwise
    would have done so if the sniff had not occurred. Under
    such circumstances, in which the defendant’s belated
    constitutional challenge to the canine sniff effectively
    foreclosed the state from seeking to prove that the
    unlawful intrusion did not contribute to the seizure of
    the evidence pursuant to the search warrant, it would
    be unfair to the state to resolve the defendant’s constitu-
    tional claim on the basis of the current, undeveloped
    record.
    In light of the foregoing, we also agree with the state
    that, contrary to the claim of the defendant, the record
    is not clear as to whether the police would have sought
    a search warrant if the canine sniff had not occurred.
    Certain testimony of Sergeants O’Brien and Broems,
    however, suggests that the state may be able to establish
    that the police would have applied for the warrant irre-
    spective of the canine sniff. For example, Sergeant
    O’Brien testified in response to the prosecutor’s ques-
    tion regarding what evidence he believed constituted
    probable cause for a warrant: ‘‘From the very beginning,
    just the totality of the whole thing; the fact that Sergeant
    Broems had said he saw Taveras go into . . . that
    [m]otel room, to that specific [m]otel room. He made
    the motor vehicle stop, they located the marijuana on
    Taveras, as well as that bag of heroin or suspected
    heroin. You know, the fact that we then searched his
    room and saw the additional baggie corners. And then
    going back and, I mean, just everything—and leading
    up to, you know, to seeing the registration card with
    . . . Taveras on it. I mean, up until that point, even
    . . . prior to seeing [the defendant’s] name, and we
    were getting ready to, obviously, go that route as far as
    the search warrant is concerned. And then the canine,
    obviously, the canine alert helped confirm things . . .
    with that specific room.’’ (Emphasis added.)
    The testimony of Sergeant Broems similarly provides
    some support for the state’s reliance on the independent
    source doctrine. For example, when testifying about
    the information on which he had relied in deciding to
    seek the warrant, he characterized the results of the
    canine sniff as ‘‘more building [on] probable cause,’’
    suggesting that the canine sniff might not have been
    integral to the decision to apply for the warrant.
    The testimony of Sergeants O’Brien and Broems indi-
    cates that, even before the canine sniff, the police inves-
    tigation was focused on room 118 and that the goal of
    that investigation was to obtain a search warrant for
    that room. Their testimony, however, is not definitive
    with respect to whether the police would have sought
    a search warrant for the room, even if the canine sniff
    had not revealed the likelihood that there were illegal
    narcotics inside. Acknowledging as much, the state con-
    tends that the inadequacy of the record with respect
    to its independent source claim dictates that we reject
    the defendant’s constitutional challenge to the canine
    sniff under Golding’s first prong because it would be
    manifestly unfair to the state to deprive it of the oppor-
    tunity to supplement the record with respect to that
    claim, an option that, the state further asserts, would be
    inappropriate under that prong of Golding. In support
    of this contention, the state relies primarily on State v.
    Brunetti, 
    279 Conn. 39
    , 
    901 A.2d 1
     (2006), cert. denied,
    
    549 U.S. 1212
    , 
    127 S. Ct. 1328
    , 
    167 L. Ed. 2d 85
     (2007).
    In Brunetti, the father of the defendant, Nicholas A.
    Brunetti, had signed a consent to search form permit-
    ting the police to search his family home, where Bru-
    netti, a suspect in a recent murder, resided with his
    parents. See id., 48. Following his arrest on that charge,
    Brunetti filed a motion to suppress certain evidence
    seized by the police as a result of the consent search,
    claiming that his father’s consent was not knowing and
    voluntary and, therefore, was constitutionally infirm.
    Id. Through counsel, Brunetti had informed the court
    that, although his mother had declined to sign the con-
    sent to search form, he was not claiming that her refusal
    to do so rendered the search unlawful. Id. The trial court
    denied Brunetti’s motion to suppress on the ground
    that his father’s consent was knowing and voluntary.
    Id., 50. Following his conviction, Brunetti appealed,
    claiming, inter alia, that the consent to search violated
    his rights under the federal and state constitutions
    because the state had failed to establish that both of
    his parents had consented to the search of their home.
    Id., 46–47. We concluded that the record was inadequate
    for review of Brunetti’s unpreserved claim because the
    state was not on notice that it was required to establish
    the consent to search of his mother as well as his father,
    and, as a result, the record was inconclusive in regard
    to the alleged consent of his mother.34 Id., 58–59 and
    n.31. We further explained that, in light of the inade-
    quacy of the record, we would not remand the case to
    the trial court for further proceedings because ‘‘that is
    what the first prong of Golding was designed to avoid.’’
    Id., 55 n.27; see also id. (explaining that ‘‘[a] contrary
    rule [permitting such remands] would promote cease-
    less litigation by discouraging parties from raising
    claims in a timely manner, thereby seriously undermin-
    ing the efficient administration of justice’’); State v.
    Golding, supra, 
    213 Conn. 240
     (‘‘The defendant bears
    the responsibility for providing a record that is adequate
    for review of his claim of constitutional error. If the
    facts revealed by the record are insufficient, unclear or
    ambiguous as to whether a constitutional violation has
    occurred, we will not attempt to supplement or recon-
    struct the record, or to make factual determinations,
    in order to decide the defendant’s claim.’’).
    Thus, Brunetti provides support for the state’s posi-
    tion that, because the record is inadequate for resolu-
    tion of the state’s independent source claim due to the
    fact that the defendant failed to challenge the propriety
    of the canine sniff in the trial court, the defendant is
    not entitled to review of his constitutional claim on
    appeal. Although we agree that the first prong of Gold-
    ing ordinarily would bar appellate review of the defen-
    dant’s unpreserved constitutional claim because remands
    to supplement the record are generally not permitted,
    we are persuaded, for the reasons that follow, that such
    a remand is appropriate under the unusual circum-
    stances of the present case. In the present case—and
    in contrast to the manner in which we resolved the
    unpreserved constitutional claim in Brunetti—the
    Appellate Court opted to consider and decide the merits
    of the defendant’s claim concerning the constitutional-
    ity of the canine sniff without first addressing the ade-
    quacy of the record in regard to the state’s independent
    source claim. In doing so, the Appellate Court acted
    within its discretion because an ‘‘appellate tribunal is
    free . . . to respond to the defendant’s [unpreserved
    constitutional] claim by focusing on whichever [of the
    four Golding requirements it deems] most relevant in
    the particular circumstances.’’ State v. Golding, supra,
    
    213 Conn. 240
    . For the reasons set forth in parts II
    and III of this opinion, however, we disagree with the
    Appellate Court’s resolution of the merits of the defen-
    dant’s claim that the canine sniff violated article first,
    § 7. Consequently, if we were to reject the defendant’s
    claim due to an inadequate record and not reach the
    merits of that claim, the decision of the Appellate Court
    with respect to that claim ordinarily would stand,
    thereby remaining the law of this state. That outcome,
    however, would be contrary to the unanimous determi-
    nation of this court that the canine sniff was unlawful.
    Alternatively, we could vacate the Appellate Court judg-
    ment. Vacatur, however, is an extraordinary remedy;
    see, e.g., Fay v. Merrill, 
    338 Conn. 1
    , 29 n.24, 
    256 A.3d 622
     (2021); most ‘‘commonly utilized . . . to prevent
    a judgment, unreviewable because of mootness, from
    spawning any legal consequences.’’ (Internal quotation
    marks omitted.) Private Healthcare Systems, Inc. v.
    Torres, 
    278 Conn. 291
    , 303, 
    898 A.2d 768
     (2006). More
    important, the exercise of our authority to vacate the
    Appellate Court judgment would result in confusion
    with respect to the legality of a warrantless canine sniff
    of a motel room, an important constitutional issue
    squarely presented by this appeal in light of the Appel-
    late Court’s decision to address and resolve that issue.
    We do not find either of these options satisfactory.
    Furthermore, as we have discussed, in Brunetti, we
    did not reach the unpreserved constitutional claim con-
    cerning the propriety of the consent search of Brunetti’s
    home because the record was inadequate for appellate
    review of that claim. See State v. Brunetti, 
    supra,
     
    279 Conn. 58
    –59 and n.31. This was so because ‘‘the facts
    relevant to the issue of [Brunetti’s] mother’s consent
    never were adduced in the trial court.’’ Id., 64. Due to
    the incomplete record concerning that critical issue,
    we further explained that ‘‘the facts revealed by the
    record [were] inadequate to establish whether the
    alleged constitutional violation did, in fact, occur.’’
    (Emphasis added.) Id. In the present case, by contrast,
    although the current record is not adequate for our
    determination of the state’s independent source claim,
    the facts revealed by the record are adequate for the
    resolution of the issue of the constitutionality of the
    canine sniff, which the Appellate Court did undertake.
    For this reason, as well, the present case is distinguish-
    able from Brunetti.
    We conclude, therefore, that it is appropriate to
    remand the case to the trial court so that the state
    may present additional evidence in connection with its
    independent source claim. It bears emphasis, however,
    that, in reaching this conclusion, we do not signal a
    retreat from the general rule, long adhered to by this
    court, that a defendant’s failure to provide an adequate
    record is fatal to an unpreserved constitutional claim
    raised for the first time on appeal. Rather, we will devi-
    ate from that rule only when exceptional circumstances
    mandate it, a standard that has been satisfied in the
    present case.35
    V
    THE CANINE SNIFF AND THE INEVITABLE
    DISCOVERY DOCTRINE
    The state also contends that the evidence seized from
    the motel room was admissible under the inevitable
    discovery doctrine because, prior to the canine sniff,
    the police were actively investigating Taveras, they had
    probable cause to obtain a search warrant for the room
    and planned to do so, and they would have sought and
    obtained a warrant even if Sergeant O’Brien had not
    conducted the canine sniff. The state further contends
    that Taveras’ statement confirming the presence of
    drugs inside the motel room—which he gave to the
    police at headquarters prior to their seeking a search
    warrant—was untainted by the illegal search and pro-
    vides additional evidence to support the claim that the
    police inevitably would have secured a warrant irre-
    spective of the canine sniff. Although acknowledging
    that, ‘‘whether the [inevitable discovery] doctrine
    applies ordinarily is, at least in the first instance, a
    question of fact for the trial court’’; State v. Cobb, supra,
    
    251 Conn. 339
    ; see also United States v. Durand, 
    767 Fed. Appx. 83
    , 88 n.5 (2d Cir. 2019) (applicability of
    inevitable discovery doctrine requires fact intensive
    inquiry to be conducted by trial court); the state main-
    tains that, in the present case, we can decide this fact
    specific issue for the first time on appeal—that is, as
    a matter of law—because ‘‘the undisputed historical
    facts established by the record reveal that [the only]
    rational conclusion [that can] be drawn’’ is that the
    evidence seized from the motel room inevitably would
    have been discovered by lawful means in the absence
    of the canine sniff. We disagree with the state that we
    may decide the issue as a matter of law, but we also
    conclude that the state must be given the opportunity,
    on remand, to present additional evidence in support
    of its inevitable discovery claim.
    ‘‘Under the inevitable discovery rule, evidence ille-
    gally secured in violation of the defendant’s constitu-
    tional rights need not be suppressed if the state demon-
    strates by a preponderance of the evidence that the
    evidence would have been ultimately discovered by
    lawful means. . . . To qualify for admissibility the state
    must demonstrate that the lawful means [that] made
    discovery inevitable were possessed by the police and
    were being actively pursued prior to the occurrence of
    the constitutional violation.’’ (Citation omitted; empha-
    sis in original.) State v. Badgett, 
    200 Conn. 412
    , 433,
    
    512 A.2d 160
    , cert. denied, 
    479 U.S. 940
    , 
    107 S. Ct. 423
    ,
    
    93 L. Ed. 2d 373
     (1986). Accordingly, ‘‘[c]ourts resolve
    claims of [inevitable discovery] under a [two step] pro-
    cess. First, the court must evaluate the progress of the
    investigation at the time of the government misconduct
    to determine whether an active and ongoing investiga-
    tion was in progress at [that time]. At this step, the
    government must establish that the investigation was
    not triggered or catalyzed by the information unlawfully
    gained by the illegal search but, rather, that the alternate
    means of obtaining the challenged evidence was, at
    least to some degree, imminent, if yet unrealized at the
    time of the unlawful search. Second, the court must,
    for each particular piece of evidence, specifically ana-
    lyze and explain how, if at all, discovery of that piece
    of evidence would have been more likely than not inevi-
    table absent the unlawful search.’’36 (Emphasis in origi-
    nal; internal quotation marks omitted.) In re 650 Fifth
    Avenue & Related Properties, 
    934 F.3d 147
    , 165 (2d Cir.
    2019); see also United States v. Cabassa, 
    62 F.3d 470
    ,
    473 and n.2 (2d Cir. 1995) (explaining that government’s
    burden of establishing that challenged evidence inevita-
    bly would have been discovered required detailed show-
    ing of each of contingencies involved, including analysis
    of strength of government’s showing of probable cause,
    ‘‘the extent to which the warrant process [had] been
    completed at the time those seeking the warrant learn
    of the search,’’ whether agents obtained warrant after
    illegal search, and whether there was ‘‘evidence that
    law enforcement agents ‘jumped the gun’ because they
    lacked confidence in their showing of probable cause’’).
    In State v. Brown, 
    331 Conn. 258
    , 286–87, 
    202 A.3d 1003
     (2019), we adopted the approach utilized by the
    Second Circuit Court of Appeals with respect to the
    nature of the proof necessary for the state to prevail
    on a claim that the otherwise inadmissible fruits of an
    illegal search inevitably would have been discovered
    notwithstanding that unlawful search, thereby eliminat-
    ing the need for suppression of that evidence. As we
    explained in Brown, ‘‘proof of inevitable discovery
    involves no speculative elements but focuses on demon-
    strated historical facts capable of ready verification or
    impeachment . . . . The focus on demonstrated his-
    torical facts keeps speculation to a minimum, by requir-
    ing the [court] to determine, viewing affairs as they
    existed at the instant before the unlawful search
    occurred, what would have happened had the unlawful
    search never occurred. . . . Evidence should not be
    admitted, therefore, unless a court can find, with a
    high level of confidence, that each of the contingencies
    necessary to the legal discovery of the contested evi-
    dence would be resolved in the government’s favor.’’37
    (Citations omitted; emphasis in original; internal quota-
    tion marks omitted.) Id., 287, quoting United States v.
    Stokes, supra, 
    733 F.3d 444
    .
    It is apparent that the investigating officers on the
    scene were seeking to develop enough evidence to
    obtain a search warrant for the motel room, even before
    the canine sniff was conducted, and, to that end, they
    were engaged in ongoing conversations concerning that
    evidence with supervisory personnel, stationed at head-
    quarters, during the course of the investigation. Conse-
    quently, it cannot reasonably be disputed that, both
    prior to and after the canine sniff, the police were
    involved in investigative activities, pertaining both to
    Taveras and to the defendant, for the purpose of
    obtaining a search warrant. As the state maintains,
    therefore, the evidence reveals that the police were
    actively involved in an investigation that, at least poten-
    tially, could have resulted in their obtaining a warrant,
    even if the canine sniff had never occurred.
    The state further posits, however, that the record also
    establishes, first, that the police had sufficient probable
    cause to obtain a warrant immediately prior to the
    canine sniff and, second, that they would have sought
    and obtained a warrant irrespective of the canine sniff.
    The state contends that, because it has demonstrated
    these two contingencies, the evidence seized from the
    motel room was admissible against the defendant
    because it inevitably would have been discovered in
    the absence of the canine sniff. On the basis of the
    record before us, we are not persuaded, contrary to the
    state’s claim, that the evidence adduced at the suppres-
    sion hearing proves as a matter of law that the police
    would have sought a search warrant irrespective of the
    canine sniff.
    With respect to the question of whether the police
    had probable cause to search the motel room prior
    to the canine sniff,38 we agree with the state that the
    information known to the police at that time constituted
    probable cause to believe that Taveras, who was staying
    in the room, was involved in the drug trade and that
    he was using the room to facilitate that trade. Although
    sufficient to support the issuance of a search warrant,
    this evidence cannot be characterized as constituting a
    particularly strong showing of probable cause. Because
    ‘‘[r]easonable minds may disagree as to whether a par-
    ticular [set of facts] establishes probable cause’’; (inter-
    nal quotation marks omitted) State v. Sawyer, 
    335 Conn. 29
    , 38, 
    225 A.3d 668
     (2020); and because the state ‘‘can-
    not prevail under the inevitable discovery doctrine
    merely by establishing that it is more probable than not
    that the disputed evidence would have been obtained
    without the constitutional violation . . . proving that
    a judge could validly have issued a warrant supported
    by probable cause [is] not necessarily enough to estab-
    lish that a judge would have issued the warrant in ques-
    tion.’’ (Citations omitted; emphasis in original; footnote
    omitted.) United States v. Heath, 
    455 F.3d 52
    , 58–59
    (2d Cir. 2006). In other words, ‘‘probable cause on its
    own is not enough; inevitable discovery requires that
    the [trial] court have a high level of confidence that the
    warrant would have—not could have—been issued
    . . . and the government bears the burden of proof
    . . . .’’ (Citations omitted; internal quotation marks
    omitted.) United States v. Christy, 
    739 F.3d 534
    , 543
    n.5 (10th Cir.), cert. denied, 
    574 U.S. 844
    , 
    135 S. Ct. 104
    , 
    190 L. Ed. 2d 84
     (2014); see also United States v.
    Cabassa, 
    supra,
     
    62 F.3d 473
    –74 (in circumstances in
    which ‘‘there is some room for disagreement’’ as to
    whether facts known to police prior to illegal search
    would have been sufficient for issuance of warrant,
    there is ‘‘a residual possibility that a . . . judge would
    have required a stronger showing of probable cause,’’
    thereby defeating state’s inevitable discovery claim).
    For present purposes, however, we need not decide
    whether the state has met its burden in this regard in
    light of our determination, discussed more fully in this
    opinion, that, on remand, the state must be afforded the
    opportunity to present additional evidence in support
    of its claim under the inevitable discovery doctrine.
    Instead, we leave it to the trial court to decide, in the
    first instance, whether the state has established that
    the facts known to the police prior to the canine sniff
    give rise to a sufficiently high likelihood that a judge
    would have issued a search warrant on the basis of
    those facts.39
    With respect to the question of whether the police
    would have sought a warrant even if the canine sniff
    had not occurred, the testimony indicated that the deci-
    sion to apply for a warrant was a collective one—made
    by the police who were at the scene in consultation
    with and with the approval of the supervisory officials
    who remained at headquarters—and that that joint deci-
    sion was arrived at after the canine sniff. The state
    nonetheless contends that certain excerpts from the
    testimony of Sergeants O’Brien and Broems demon-
    strate that they believed they had probable cause to
    search the room before the canine sniff was conducted
    and that they would have sought a warrant based on
    that evidence if the canine sniff had not occurred. More
    specifically, the state relies on Sergeant O’Brien’s testi-
    mony that they were ‘‘getting ready’’ to ‘‘go [the search
    warrant] route’’ prior to the canine sniff and that the
    ‘‘alert helped confirm things . . . with that specific
    room,’’ and on Sergeant Broems’ testimony characteriz-
    ing the canine sniff as ‘‘more building upon probable
    cause.’’ This testimony and other testimony confirm
    that, prior to the sniff, Sergeants O’Brien and Broems
    believed that they were closing in on their goal of devel-
    oping the evidence necessary to obtain a search war-
    rant, but it does not clearly or necessarily establish that
    the police would have sought a warrant even in the
    absence of the canine sniff.40 Because this court lacks
    the authority to find facts; see, e.g., Ashmore v. Hartford
    Hospital, 
    331 Conn. 777
    , 785, 
    208 A.3d 256
     (2019); we
    cannot resolve the factual issue presented by the state’s
    inevitable discovery claim unless the undisputed evi-
    dence leads to only one possible conclusion. See State
    v. Cobb, supra, 
    251 Conn. 339
    . Although arguably sup-
    porting such a finding, the testimony certainly does
    not dictate it. Without evidence that would render this
    factual issue free from all doubt, we cannot purport to
    resolve it.
    The state further maintains that the police also would
    have sought and obtained a search warrant for the motel
    room on the basis of the statement that Taveras gave
    to the police, after he had been taken to headquarters,
    acknowledging that he kept marijuana in the room. As
    we stated in Brown, ‘‘in order to bear its burden [of]
    prov[ing] that the inevitable discovery exception to the
    exclusionary rule applie[s] [to the statement of a wit-
    ness], the state [is] required to prove by a preponder-
    ance of the evidence . . . that . . . [the witness]
    would have cooperated and provided the same infor-
    mation,’’ even if the illegal search had not occurred.
    (Emphasis added.) State v. Brown, 
    supra,
     
    331 Conn. 285
    –86.
    This is no easy task, especially when, as in the present
    case, the statement at issue was obtained by the police
    from a suspect during the course of an active, fast
    moving investigation. Indeed, as the Third Circuit Court
    of Appeals has observed, cases in which the doctrine
    has been applied to admit statements, as distinguished
    from physical evidence, are few and far between. See
    United States v. Vasquez De Reyes, 
    149 F.3d 192
    , 195
    (3d Cir. 1998). ‘‘While we know of no articulation of
    the inevitable discovery doctrine that restricts its appli-
    cation to physical evidence . . . it is patent why cases
    have generally, if not always, been so limited. A tangible
    object is hard evidence, and absent its removal will
    remain where left until discovered. In contrast, a state-
    ment not yet made is, by its very nature, evanescent
    and ephemeral. Should the conditions under which it
    was made change, even but a little, there could be
    no assurance the statement would be the same.’’ 
    Id.,
    195–96; see also, e.g., United States v. Rodriguez,
    Docket No. 3:06-cr-57 (JCH), 
    2006 WL 2860633
    , *11 (D.
    Conn. October 4, 2006) (holding that ‘‘the government
    . . . failed to satisfy its burden of proving that [the
    defendant inevitably] would have made the same state-
    ments,’’ especially because ‘‘the statement at issue [was]
    made by a non-law enforcement person, for it is harder
    to determine what such an individual might have said
    or done during a police investigation’’), rev’d on other
    grounds sub nom. United States v. Delossantos, 
    536 F.3d 155
     (2d Cir.), cert. denied sub nom. Rodriguez v.
    United States, 
    555 U.S. 1056
    , 
    129 S. Ct. 649
    , 
    172 L. Ed. 2d 628
     (2008).
    On the basis of the current record, we cannot con-
    clude with the required high level of confidence that
    Taveras would have provided the same incriminating
    statement to the police if the canine sniff had not
    occurred. As we previously discussed, after the police
    stopped the Yukon in which Taveras was a passenger,
    they found drugs in Taveras’ possession and arrested
    him. He was then placed in Officer Sheperis’ cruiser,
    where he remained until he was transported to police
    headquarters more than one hour later. Upon his arrest,
    Taveras denied that he had been in the motel or had
    any connection to it, and he also denied having any
    additional marijuana. Because Taveras was detained in
    Officer Sheperis’ cruiser, which was parked at the motel
    when the canine sniff was performed, there is a likeli-
    hood that Taveras witnessed Sergeant O’Brien conduct
    the canine sniff—the walkway in front of room 118 was
    open, illuminated and readily visible from at least fifty
    yards away—and that he therefore was aware that Coo-
    per had alerted on the room. Only thereafter, following
    his transportation to headquarters, did Taveras
    acknowledge that he kept marijuana in the room. In
    light of these events, there is also a real possibility that
    Taveras, who previously had refused to make any such
    admissions to the police, decided to confess to having
    marijuana in the motel room in the interest of limiting
    his criminal exposure, for, by then, Taveras had every
    reason to believe that the police, armed with the results
    of the canine sniff, would obtain a search warrant for
    the room and, upon executing it, find a large cache
    of heroin therein. Moreover, even if Taveras had not
    witnessed the canine sniff, it would have been consis-
    tent with common police practice for the officers ques-
    tioning Taveras to inform him of the canine sniff in
    order to induce him to confess to his drug involvement,
    and to otherwise cooperate with the police, before they
    obtained a search warrant for the room.
    Under these circumstances, the state bears the bur-
    den of establishing that the canine sniff was not used
    by the police, directly or indirectly, to procure Taveras’
    statement and, further, that Taveras’ willingness to pro-
    vide the particular statement that he did—with its
    incriminating reference to the marijuana he kept in the
    motel room—was not influenced by any knowledge of
    the canine sniff. See, e.g., Murray v. United States,
    supra, 
    487 U.S. 542
     n.3 (inevitable discovery is rule
    inapplicable if illegal search had ‘‘any effect’’ in produc-
    ing warrant); State v. Brown, 
    supra,
     
    331 Conn. 288
     (‘‘The
    requirement that the state prove that each contingency
    would have been resolved in its favor demands that, at
    the least, the state [must] prove . . . that it would have
    . . . secured the same level of cooperation from [the
    witness] in the absence of the illegally obtained [evi-
    dence]. . . . [The witness’] cooperation was a contin-
    gency [on] which the procurement of a statement
    incriminating himself and the defendant depended. The
    state [bears] the burden, therefore, to prove that this
    contingency would have resolved in its favor.’’); see
    also 6 W. LaFave, Search and Seizure (5th Ed. 2012)
    § 11.4 (c), pp. 399–400 (‘‘[when] the defendant was pres-
    ent when incriminating evidence was found in an illegal
    search or was confronted by the police with incriminat-
    ing evidence they had illegally seized earlier, it is appar-
    ent that there has been an exploitation of that illegality
    when the police subsequently question the defendant
    about that evidence or the crime to which it relates’’
    (footnotes omitted; internal quotation marks omitted)).
    This is particularly true in view of the fact that Taveras
    had refused to provide the police with any such informa-
    tion prior to the canine sniff. Although the testimony
    adduced at the suppression hearing does not foreclose
    the possibility that Taveras would have given the same
    incriminating statement, even in the absence of the
    canine sniff, on the strength of the record before us,
    we are unable to conclude without resort to speculation
    that he would have done so.
    The fact that the current record does not support the
    conclusion that the evidence seized pursuant to the
    warrant inevitably would have been discovered irre-
    spective of the canine sniff, however, does not mean
    that the state cannot prove its claim. As with the state’s
    contention under the independent source doctrine, the
    state had no reason to adduce proof of the elements
    of its inevitable discovery claim because the defendant
    did not challenge the propriety of the canine sniff in
    the trial court. Accordingly, on remand, the state must
    be given the opportunity to present additional evidence
    in support of that claim, as well.
    VI
    THE VISUAL SWEEP
    The defendant next claims that the Appellate Court
    incorrectly concluded that the trial court correctly had
    determined that the visual sweep of the defendant’s
    motel room was justified by exigent circumstances, in
    particular, the need to forestall the destruction of evi-
    dence. We agree with the defendant that, under the
    circumstances, the possibility that evidence would be
    destroyed was too speculative to justify the visual
    sweep.41
    The following legal principles guide our review of
    the defendant’s claim with respect to the exigent cir-
    cumstances doctrine, an exception to the warrant
    requirement that is triggered when ‘‘the exigencies of
    the situation make the needs of law enforcement so
    compelling that [a] warrantless search is objectively
    reasonable . . . .’’ (Internal quotation marks omitted.)
    Kentucky v. King, 
    563 U.S. 452
    , 460, 131 S. Ct 1849,
    
    179 L. Ed. 2d 865
     (2011). ‘‘The exception enables law
    enforcement officers to handle emergenc[ies]—situa-
    tions presenting a compelling need for official action
    and no time to secure a warrant.’’ (Internal quotation
    marks omitted.) Lange v. California,         U.S.    , 
    141 S. Ct. 2011
    , 2017, 
    210 L. Ed. 2d 486
     (2021). ‘‘The term,
    exigent circumstances, does not lend itself to a precise
    definition but generally refers to those situations in
    which law enforcement agents will be unable or unlikely
    to effectuate an arrest, search or seizure, for which
    probable cause exists, unless they act swiftly and, with-
    out seeking prior judicial authorization.’’ (Internal quo-
    tation marks omitted.) State v. Gant, 
    231 Conn. 43
    ,
    63–64, 
    646 A.2d 835
     (1994), cert. denied, 
    514 U.S. 1038
    ,
    
    115 S. Ct. 1404
    , 
    131 L. Ed. 2d 291
     (1995). Thus, ‘‘[t]he
    core question is whether the facts, as they appeared at
    the moment of entry, would lead a reasonable, experi-
    enced officer to believe there was an urgent need to
    render aid or take action.’’ (Internal quotation marks
    omitted.) United States v. Moreno, 
    701 F.3d 64
    , 73 (2d
    Cir. 2012), cert. denied, 
    569 U.S. 1032
    , 
    133 S. Ct. 2797
    ,
    
    186 L. Ed. 2d 864
     (2013). As this court has observed;
    see, e.g., State v. Aviles, 
    277 Conn. 281
    , 294, 
    891 A.2d 935
    , cert. denied, 
    549 U.S. 840
    , 
    127 S. Ct. 108
    , 
    166 L. Ed. 2d 69
     (2006); courts have recognized three general
    categories as justifying the application of the exigent
    circumstances doctrine, namely, danger to human life,
    the flight of a suspect, and, most relevant here, ‘‘the
    imminent destruction of evidence . . . .’’ Brigham
    City v. Stuart, 
    547 U.S. 398
    , 403, 
    126 S. Ct. 1943
    , 
    164 L. Ed. 2d 650
     (2006). In each such category, ‘‘the delay
    required to obtain a warrant would bring about some
    real immediate and serious consequences—and so the
    absence of a warrant is excused.’’ (Internal quotation
    marks omitted.) Lange v. California, 
    supra,
     
    141 S. Ct. 2017
    .
    The test for determining whether a warrantless entry
    was justified to prevent the imminent destruction of
    evidence is well established and seeks to ascertain
    whether, under the totality of the circumstances, the
    police had both probable cause to search and reasonable
    grounds to believe that evidence would be destroyed
    if immediate action were not taken. See, e.g., State v.
    Guertin, 
    190 Conn. 440
    , 447, 454, 
    461 A.2d 963
     (1983).
    ‘‘This is an objective test; its preeminent criterion is
    what a reasonable, [well trained] police officer would
    believe, not what the . . . officer actually did believe.’’
    (Emphasis in original; internal quotation marks omit-
    ted.) Id., 453. ‘‘Rather than evaluating the significance
    of any single factor in isolation, courts must consider
    all of the relevant circumstances in evaluating the rea-
    sonableness of the officer’s belief that immediate action
    was necessary’’; State v. Kendrick, 
    314 Conn. 212
    , 229,
    
    100 A.3d 821
     (2014); and ‘‘[t]he reasonableness of a
    police officer’s determination that [such] an emergency
    exists is evaluated on the basis of facts known at the
    time of entry.’’ (Internal quotation marks omitted.) State
    v. Aviles, supra, 
    277 Conn. 293
    –94. Consequently, the
    applicability of the exigent circumstances doctrine
    must be determined on a ‘‘case-by-case basis’’; Birch-
    field v. North Dakota,       U.S.    , 
    136 S. Ct. 2160
    , 2174,
    
    195 L. Ed. 2d 560
     (2016); see also Riley v. California,
    
    573 U.S. 373
    , 402, 
    134 S. Ct. 2473
    , 
    189 L. Ed. 2d 430
    (2014) (exigent circumstances exception ‘‘requires a
    court to examine whether an emergency justified a war-
    rantless search in each particular case’’); an ‘‘approach
    [that] reflects the nature of emergencies. Whether a
    ‘now or never situation’ actually exists—whether an
    officer has ‘no time to secure a warrant’—depends [on]
    facts on the ground.’’ Lange v. California, supra, 
    141 S. Ct. 2018
    . Furthermore, because warrantless searches
    are disfavored, ‘‘the police bear a heavy burden when
    attempting to demonstrate an urgent need that might
    justify [a search without a warrant].’’ Welsh v. Wiscon-
    sin, 
    466 U.S. 740
    , 749–50, 
    104 S. Ct. 2091
    , 
    80 L. Ed. 2d 732
     (1984). Finally, because determining whether the
    circumstances of any particular case were sufficiently
    exigent to justify a warrantless search is a question of
    law, we review de novo the conclusions of the trial
    court and the Appellate Court regarding the doctrine’s
    applicability to the facts of the present case. State v.
    Kendrick, supra, 222.
    As we previously discussed, following the canine
    sniff, the officers decided that Sergeant Broems and
    Officer Sheperis would return to police headquarters
    to prepare an application for a search warrant while
    Sergeant O’Brien remained at the motel to continue
    the surveillance of room 118. Minutes after Sergeant
    Broems and Officer Sheperis departed, Sergeant O’Brien
    observed the defendant walking nearby and radioed
    Sergeant Broems to return to the motel, which he did.
    At that time, the defendant was searched, and a large
    quantity of cash and a key to room 118 were found in
    his pocket. The defendant was initially cooperative and
    agreed to let the officers into the room, but, when they
    got to the door, he changed his mind and refused to
    do so. Sergeant Broems then took the room key from
    the defendant, opened the door and looked inside the
    room for approximately fifteen to thirty seconds, at
    which time he observed a large black digital scale on
    a table and a plastic sandwich bag lying near it on
    the floor. The visual sweep and the resulting police
    observation of the scale and sandwich bag, both of
    which constituted evidence of drug trafficking, were
    referenced in the affidavit in support of the search war-
    rant application.
    Following his arrest, the defendant moved to sup-
    press the evidence seized from the room on the ground
    that Sergeant Broems’ visual sweep was a search requir-
    ing a warrant supported by probable cause. The state
    did not dispute that the visual sweep was a search for
    constitutional purposes but maintained that the sweep
    was justified under the exigent circumstances excep-
    tion to the warrant requirement to prevent someone
    who might be inside the room from destroying evidence.
    To establish the applicability of the doctrine, the prose-
    cutor questioned Sergeants Broems and O’Brien about
    their reasons for believing that the sweep was necessary
    to prevent the destruction of evidence pending the
    application for and issuance of a search warrant.
    Specifically, the prosecutor asked Sergeant O’Brien
    if he or Sergeant Broems had inquired of the defendant,
    after the defendant refused to open the door to the
    motel room, whether anyone was inside the room. Ser-
    geant O’Brien responded that he did not recall asking
    that question but ‘‘it definitely would have been a con-
    cern of ours . . . .’’ When asked to ‘‘elaborate’’ on that
    and ‘‘why would that be a concern,’’ Sergeant O’Brien
    responded: ‘‘Well, I mean, at this point, I mean, if any-
    body was, and we were already thinking we had—
    before we had even—just to back track—before I ran
    . . . Cooper on the breezeway, on that first floor [hall-
    way], we knocked on the door, and we didn’t get a
    response. So, it was at that point, after not getting a
    response, that . . . I decided to use . . . Cooper to
    . . . do the sweep of the doors.
    ‘‘So, plus, you know, between the male that we had
    stopped initially in the SUV and then [Taveras’] brother,
    I mean, at any point, any one of these people could
    have, you know, called. And, if there was somebody in
    there and said, hey, look, you know, the cops are all
    over this place, it’s typical. . . . I mean, people drive
    by all the time and say they see their friends . . . being
    stopped or spoken to . . . . And calls are made . . . .’’
    On cross-examination, Sergeant O’Brien was asked
    whether there was ‘‘[a]nything specific’’ that caused him
    to think that someone might be in the room. Sergeant
    O’Brien responded that, although there were ‘‘[n]o
    audio indications whatsoever,’’ ‘‘[w]e had no reason not
    to believe [it]. Just because somebody doesn’t answer
    the door when there’s a narcotics investigation going,
    doesn’t mean that there isn’t potentially somebody [in]
    there.’’ On redirect examination, the prosecutor asked
    Sergeant O’Brien whether it was ‘‘possible that a con-
    cern of yours could have been that . . . Taveras’
    brother could have tipped off [the defendant] or one
    of his associates to destroy evidence inside the room?’’
    Sergeant O’Brien responded: ‘‘Yeah, I believe I indicated
    that earlier as far as, you know, on the motor vehicle
    stop that, you know, often, people drive by and see
    their friends, you know, being stopped or detained, and
    phone calls are . . . quickly made . . . .’’ Sergeant
    O’Brien further testified that ‘‘[t]he light off could have
    meant that as well, in my opinion. I mean, there was
    nothing to indicate that there was nobody else . . . in
    that room . . . . You’re asking me for indicators that
    . . . somebody was in there? I had none . . . .’’
    Defense counsel engaged Sergeant Broems in a simi-
    lar line of questioning. Specifically, he asked him
    whether he could offer ‘‘any fact, any articulation, as
    to why you believed there was someone in . . . room
    118?’’ Sergeant Broems stated: ‘‘I can’t give you fact[s]
    because there was nobody in there. But I can tell you,
    through my twenty years of experience, why there’s a
    possibility. I made a motor vehicle stop, there was two
    people in a car, I had Taveras . . . with me; [but] the
    driver was able to leave. I then went over to Charles
    Street; there was his brother there at that location; we
    then left that location.
    ‘‘We then went to the [m]otel clerk . . . . So I don’t
    know who made any calls, I don’t know anything. So,
    based on my training and experience, I—that’s what I
    based it on, that there was more than one person that
    knew about that room and . . . had access to that
    room.’’
    In its memorandum of decision denying the defen-
    dant’s motion to suppress, the trial court rejected the
    defendant’s claim that the visual sweep was not justified
    by the exigent circumstances exception to the warrant
    requirement. The court concluded that the sweep was
    permissible because, as both Sergeants O’Brien and
    Broems testified, it was possible that someone had
    alerted ‘‘potential confederates’’ of the defendant about
    the ‘‘Stamford police’s investigation into the activity in
    room 118,’’ thus ‘‘prompting’’ these unknown associates
    to destroy evidence located in the room. The trial court
    also relied on Sergeant O’Brien’s testimony that, ‘‘when
    it comes to prostitution or narcotics trafficking out of
    hotel rooms . . . it is quite common for additional peo-
    ple to be present’’ in the room, ‘‘regardless of the actual
    number of registered parties.’’
    The Appellate Court agreed with the trial court that
    the visual sweep was permissible to prevent the destruc-
    tion of evidence. State v. Correa, supra, 
    185 Conn. App. 340
    . The Appellate Court reasoned that the police had
    interacted ‘‘with at least four people who were not
    taken into police custody’’ on the night in question, in
    particular, Brickman, Taveras’ brother and grand-
    mother, and the motel manager, and that ‘‘phone calls
    may have occurred’’ between these people ‘‘and possi-
    ble confederates [of the defendant], prompting the
    destruction of evidence inside of the room.’’ Id., 337.
    The Appellate Court further explained that ‘‘it was rea-
    sonable for the police to fear that even unknown pas-
    sersby might become aware of the police investigation
    into room 118’’ and alert someone who, in turn, could
    have destroyed evidence inside the room. Id., 337.
    Finally, the Appellate Court stated: ‘‘Sergeant Broems
    . . . noted that, from the time Taveras entered the room
    [earlier in the evening] until the . . . police returned
    to the room with the defendant after 3 a.m., there was
    ‘nobody with eyes on’ the room, which might have
    allowed an unknown person to enter [the room] and
    [to] destroy evidence contained therein. Although no
    one answered when the police knocked on the door
    . . . and there was no evidence confirming the pres-
    ence of an additional person in [the room], these facts,
    coupled with the observation of a light on in the room,
    provided ample reason to believe that, [in the absence
    of] swift action in opening the door to room 118 and
    performing a visual sweep, there was a significant risk
    of the destruction of evidence.’’ Id., 339–40.
    On appeal, the defendant challenges the Appellate
    Court’s determination that the trial court correctly con-
    cluded that exigent circumstances justified the visual
    sweep. The defendant argues, first, that the police
    lacked probable cause to believe that evidence of an
    offense would be found in the room when they con-
    ducted the visual sweep and, second, that neither Ser-
    geant O’Brien nor Sergeant Broems was able to identify
    any fact or combination of facts sufficient to lead a
    police officer reasonably to believe that someone was
    in the room who had been alerted to the need to destroy
    incriminating evidence located inside. In that regard,
    the defendant asserts that the fact that the light was
    on in the room was the only concrete piece of evidence
    that supported the officers’ belief that someone might
    be in the room, evidence that, the defendant further
    maintains, was patently inadequate to justify a war-
    rantless entry on grounds of exigent circumstances.
    With respect to the probable cause requirement, we
    agree with the state that the police had probable cause
    to search the room following their encounter with the
    defendant. In part IV of this opinion, we explained why
    the facts known to the police at that time constituted
    probable cause to search the room, and we need not
    repeat that discussion here.42
    As for the exigency requirement, we agree with the
    defendant that, contrary to the determination of the
    trial court and the Appellate Court, the belief held by
    the police that an immediate visual sweep of the room
    was necessary to avert the destruction of evidence was
    not objectively reasonable. Of course, the police knew
    that neither one of the two individuals actually linked
    to the motel room, Taveras and the defendant, was in
    a position to destroy evidence located inside the room
    because Taveras was under arrest and the defendant
    was with the police when the visual sweep was con-
    ducted. Moreover, there is nothing in the record to
    suggest that the police had reason to believe that anyone
    else had a similarly direct connection to the room or
    its contents. Consequently, the only concern that the
    police reasonably could have had with respect to the
    destruction of evidence located inside the room was
    based solely on the possibility—unsupported by any
    facts—that there was someone in the room who could
    be notified of the police investigation and destroy any
    such evidence. The state has not identified a single
    case, however, and our independent research has not
    revealed one, in which a warrantless entry was found
    to be justified on similar facts, that is, facts establishing
    merely that someone who had become aware of a police
    investigation involving the suspect might possibly alert
    that suspect of the investigation and, in turn, the suspect
    might possibly enlist some unknown confederate—one
    with immediate access to incriminating evidence—to
    destroy that evidence.
    In fact, in State v. Spencer, 
    268 Conn. 575
    , 580, 596–97,
    
    848 A.2d 1183
    , cert. denied, 
    543 U.S. 957
    , 
    125 S. Ct. 409
    ,
    
    160 L. Ed. 2d 320
     (2004), we rejected a nearly identical
    claim in the context of a warrantless protective sweep
    of the apartment of the defendant, Michael Spencer,
    following Spencer’s arrest outside of the apartment,
    and our reasons for doing so are fully applicable in
    the present case. As we explained in Spencer: ‘‘[T]he
    officers’ testimony reveals that [the police] had no infor-
    mation that any person who posed a threat to the offi-
    cers or to others might have been in the apartment at
    [the] time [of the search].’’ 
    Id.,
     595–96. ‘‘The generalized
    possibility that an unknown, armed person may be lurk-
    ing [inside] is not . . . an articulable fact sufficient to
    justify a protective sweep. Indeed, nearly every arrest
    involving a large quantity of drugs, in or just outside
    of a home, carries the same possibility. To allow the
    police to justify a warrantless search based solely [on]
    that possibility would threaten to swallow the general
    rule requiring search warrants. Furthermore, allowing
    the police to conduct protective sweeps whenever they
    do not know whether anyone else is inside a home
    creates an incentive for the police to stay ignorant as
    to whether anyone else is inside a house in order to
    conduct a protective sweep. . . . The officers’ lack of
    information cannot be an articulable basis for a sweep
    that requires information to justify it in the first place.’’
    (Citation omitted; emphasis omitted; footnote omitted;
    internal quotation marks omitted.) 
    Id.,
     596–97; see also,
    e.g., United States v. Burleigh, 
    414 Fed. Appx. 77
    , 78
    (9th Cir. 2011) (‘‘the police [officers’] speculations that
    there were individuals inside the warehouse who might
    destroy evidence and that these individuals knew or
    might be alerted that the warehouse was under surveil-
    lance [was] insufficient to meet the government’s bur-
    den of proving exigent circumstances’’); United States
    v. Menchaca-Castruita, 
    587 F.3d 283
    , 295–96 (5th Cir.
    2009) (‘‘There will always be some possibility that an
    unknown person might be hiding somewhere inside a
    residence, waiting for an opportunity to . . . destroy
    evidence. A finding of exigent circumstances, however,
    must be based on more than a mere possibility; it must
    be based on an officer’s reasonable belief that the delay
    necessary to obtain a warrant will facilitate the destruc-
    tion or removal of evidence . . . . [T]he totality of the
    circumstances [fell] well short of any reasonable foun-
    dation for such speculation.’’ (Emphasis omitted.));
    United States v. Carter, 
    360 F.3d 1235
    , 1241 (10th Cir.
    2004) (‘‘There was simply no evidence that destruction
    of evidence was likely. Indeed, the government
    point[ed] to no reason to believe that other people were
    in the garage, or even the house.’’); United States v.
    Driver, 
    776 F.2d 807
    , 810 (9th Cir. 1985) (government’s
    ‘‘burden is not satisfied by leading a court to speculate
    about what may or might have been the circumstances’’
    requiring warrantless entry); United States v. Agapito,
    supra, 
    620 F.2d 336
     n.18 (‘‘[The court does] not suggest
    that law enforcement officers who arrest an individual
    outside the premises never may conduct a security
    check inside the premises. . . . [I]n such a case, the
    arresting officers must have (1) a reasonable belief that
    third persons are inside, and (2) a reasonable belief
    that the third persons are aware of the arrest outside the
    premises so that they might destroy evidence, escape
    or jeopardize the safety of the officers or the public.’’
    (Citations omitted.)).
    Thus, at a minimum, the state was required to point
    to specific and articulable facts that, taken together
    with rational inferences from those facts, gave rise to
    a reasonable belief that someone was, in fact, inside
    the defendant’s motel room when the police conducted
    the visual sweep. Cf. United States v. Almonte-Báez,
    
    857 F.3d 27
    , 33 (1st Cir. 2017) (exigency due to imminent
    destruction of evidence existed when ‘‘agents knocked
    on the front door of the apartment and identified them-
    selves,’’ ‘‘heard someone inside the apartment running
    away from the door,’’ and ‘‘noticed that the door was
    sealed shut’’); United States v. Andino, 
    768 F.3d 94
    , 99
    (2d Cir. 2014) (officers reasonably believed that destruc-
    tion of evidence was likely when woman, upon learning
    of their investigation, slammed apartment door shut,
    began opening and closing drawers, and turned on fau-
    cet); United States v. Ramirez, 
    676 F.3d 755
    , 758, 763,
    765 (8th Cir. 2012) (government had ‘‘fail[ed] to estab-
    lish that it was reasonable for the officers to conclude
    that [the] destruction of evidence was imminent,
    thereby establishing exigent circumstances warranting
    the forced entry’’ into defendant’s hotel room, when
    ‘‘the only sound [the officer] heard from the room . . .
    after he ultimately knocked on the door’’ was ‘‘the sound
    of an individual approaching the door,’’ and officers
    subsequently heard no sounds of ‘‘dead bolt lock being
    engaged, no toilet flushing or a shower or faucet run-
    ning, and no shuffling noises or verbal threats emanat-
    ing from the room’’); United States v. Etchin, 
    614 F.3d 726
    , 733–34 (7th Cir. 2010) (‘‘[A]n emergency justifying
    entry and a search arises only if the officer knocking
    at the door observes objective evidence that there is
    an ongoing crime within that must be stopped before
    it is completed. The sound of someone walking around,
    for example, or a voice that announces, ‘[t]he cops
    are here,’ is not enough by itself. But other sights and
    sounds—toilets flushing, a door slammed, people run-
    ning, an obvious lie by the person answering the door,
    or efforts to remove contraband from the house—may
    be evidence that there is an emergency that calls for
    an immediate, warrantless intrusion.’’), cert. denied sub
    nom. Cole v. United States, 
    562 U.S. 1156
    , 
    131 S. Ct. 953
    , 
    178 L. Ed. 2d 786
     (2011); United States v. Leverin-
    gston, 
    397 F.3d 1112
    , 1116 (8th Cir.) (‘‘The occupant of
    the suite reacted to [the] police knocking by looking
    through curtains, expressing surprise, and then immedi-
    ately shutting the curtains. This response was followed
    by sounds of pots and pans slamming, dishes breaking,
    water flowing, and a garbage disposal running. The
    officers reasonably could infer that these sounds indi-
    cated the destruction of evidence of drug trafficking in
    response to the presence of the police.’’), cert. denied,
    
    546 U.S. 862
    , 
    126 S. Ct. 159
    , 
    163 L. Ed. 2d 145
     (2005);
    United States v. Bonner, 
    874 F.2d 822
    , 825 (D.C. Cir.
    1989) (exigency exists when, inter alia, ‘‘officers heard
    sounds consistent with . . . destruction of the object
    of the search’’); United States v. Alfonso, 
    759 F.2d 728
    ,
    742–43 (9th Cir. 1985) (when hotel room door was
    opened in response to knock on door by police, who
    observed suspect and several others in room and heard
    ‘‘ ‘hurried scuffling noise’ coming from the bathroom,’’
    police reasonably believed that ‘‘concealed presences
    might pose danger, or that an unidentified person might
    be able to destroy evidence’’).
    Except for the wholly unremarkable fact that a light
    was on inside the motel room, the record is devoid of
    any evidence from which a police officer reasonably
    could have concluded that someone was inside the
    room. Lights are routinely left on in empty homes and
    hotel rooms, especially at night. If this were enough
    to create the kind of emergency justifying warrantless
    entry, the exigent circumstances exception would
    immediately cease to be an exception and, instead,
    would become the rule. In other words, if the war-
    rantless search by the police in the present case is
    deemed to be supported by exigent circumstances, then
    such a search will be permissible whenever there is
    any possibility that the defendant or someone else might
    attempt to contact a third party for the purpose of
    having that third party destroy evidence. Indeed, that
    is the thrust of the state’s argument: the police should
    be permitted to conduct a warrantless search in such
    circumstances. A warrantless entry, however, cannot
    be deemed necessary on emergency grounds on the
    basis of such generalized speculation, even if, on occa-
    sion, evidence may be destroyed because the police
    simply did not have enough information available to
    them to form a reasonable belief, based on the particu-
    lar facts of the case at hand, that a warrantless search
    was justified to prevent the destruction of such evi-
    dence.
    In reaching a contrary conclusion, the Appellate
    Court relied primarily on State v. Reagan, 
    18 Conn. App. 32
    , 
    556 A.2d 183
    , cert. denied, 
    211 Conn. 805
    , 
    559 A.2d 1139
     (1989), which it cited for the proposition that
    the search of the defendant’s motel room was justified,
    so long as ‘‘there was a distinct possibility that someone
    who observed either the police stop of the Yukon, Tav-
    eras’ arrest, or the police and canine presence at the
    motel, might inform someone involved with the criminal
    activity.’’ State v. Correa, supra, 
    185 Conn. App. 339
    .
    We disagree that Reagan stands for that proposition.
    In that case, the police were conducting a surveil-
    lance of the home of the defendant, Edward L. Reagan,
    a suspected drug dealer. State v. Reagan, supra, 
    18 Conn. App. 34
    . After witnessing what they believed to
    be a drug transaction between Reagan and another man,
    David Earl Jones, at Reagan’s home, the police detained
    Jones a short distance from the home. 
    Id.
     A number of
    people witnessed Jones’ detention, including a woman
    whom the police had seen enter and exit Reagan’s home
    earlier in the day. 
    Id.,
     34–35. In concluding that immedi-
    ate entry into Reagan’s home was permissible to prevent
    the imminent destruction of evidence while the police
    sought a search warrant for the home, the Appellate
    Court, citing a number of federal cases, observed that
    ‘‘[i]t has been recognized that the possibility that a sus-
    pect knows or may learn that he is under surveillance
    or at risk of immediate apprehension may constitute
    exigent circumstances, on the theory that the suspect
    is more likely to destroy evidence, to attempt to escape
    or to engage in armed resistance.’’ Id., 38. The Appellate
    Court further stated that ‘‘[f]ederal courts have held
    that exigent circumstances may exist [when the] police
    reasonably believe that a defendant may be alerted to
    the imminence of [his] arrest by the detention or arrest
    of a confederate and destroy incriminating evidence.’’
    Id. In all of the cited cases, however, as in Reagan itself,
    the police knew that the suspect was inside the place
    to be searched, in a position and with an obvious motive
    to destroy evidence of his or her crime. In the present
    case, by contrast, the police had no reason, beyond
    rank speculation, to believe that anyone was inside
    the defendant’s motel room. Indeed, as we previously
    discussed, they knew for certain that the two targets
    of the investigation, the defendant and Taveras, were
    not in the room. We therefore conclude that the Appel-
    late Court and the trial court incorrectly determined
    that the visual sweep of the defendant’s motel room
    was justified by exigent circumstances.
    VII
    THE VISUAL SWEEP AND THE INDEPENDENT
    SOURCE DOCTRINE
    Finally, the state claims that the trial court properly
    determined that any impropriety in the visual sweep
    was obviated by the independent source doctrine.43 In
    support of this contention, the state asserts that, prior
    to the visual sweep, the facts known to the police consti-
    tuted probable cause to search the room and, in addi-
    tion, that the police would have sought a search warrant
    even if Sergeant Broems had not conducted the visual
    sweep.
    In parts IV and VI of this opinion, we explained why
    the information available to the police before the canine
    sniff, which preceded the visual sweep, constituted
    probable cause.44 Consequently, the state has satisfied
    the first requirement of the independent source doc-
    trine.
    The next question, therefore, is whether the police
    would have applied for a search warrant irrespective
    of the visual sweep. The evidence established, and the
    trial court found, that the police decided to seek a
    warrant prior to the visual sweep. According to the
    testimony, however, the collective decision to apply for
    the warrant was made after Sergeant O’Brien conducted
    the canine sniff, a fact that the trial court did not con-
    sider because the propriety of the canine sniff was not
    an issue in the trial court.
    We, of course, have concluded that the canine sniff
    violated article first, § 7, of the state constitution. Con-
    sequently, for purposes of the state’s claim that the
    independent source doctrine obviates the illegality of
    the visual sweep, the determination as to whether the
    police would have sought a warrant irrespective of the
    visual sweep must be made in light of the fact that
    the canine sniff also was unlawful. That determination
    requires the same fact-finding that will be necessary
    to resolve the state’s claim of an independent source
    relative to the canine sniff. Accordingly, on remand,
    the trial court also must consider the state’s claim of
    an independent source relative to the visual sweep with
    due regard for the impropriety of the canine sniff, as
    well. Of course, the state must have the opportunity to
    present any additional evidence that may be relevant
    to that issue.
    VIII
    CONCLUSION
    We conclude that the canine sniff was a search sub-
    ject to the warrant requirement of article first, § 7, of
    the state constitution and that the failure of the police
    to obtain a warrant before conducting the canine sniff
    violated that requirement. We also conclude that the
    case must be remanded to the trial court so that the state
    may be afforded the opportunity to adduce additional
    evidence concerning its claims relative to the canine
    sniff under the independent source and inevitable dis-
    covery doctrines, claims that, if proven, would obviate
    the illegality of the canine sniff and thereby eliminate
    the need for suppression of the evidence ultimately
    seized pursuant to the search warrant. We finally con-
    clude that, although the visual sweep was not justified
    by exigent circumstances, the state also must be
    afforded the opportunity to present additional evidence
    to establish, in light of our determination regarding the
    impropriety of the canine sniff, that the constitutional
    infirmity of the visual sweep is obviated by the indepen-
    dent source doctrine.
    The judgment of the Appellate Court is reversed and
    the case is remanded to that court with direction to
    remand the case to the trial court for further proceed-
    ings in accordance with this opinion.
    In this opinion the other justices concurred.
    * The listing of justices reflects their seniority status on this court as of
    the date of oral argument.
    ** September 15, 2021, the date that this decision was released as a slip
    opinion, is the operative date for all substantive and procedural purposes.
    1
    Article first, § 7, of the Connecticut constitution provides: ‘‘The people
    shall be secure in their persons, houses, papers and possessions from unrea-
    sonable searches or seizures; and no warrant to search any place, or to
    seize any person or things, shall issue without describing them as nearly
    as may be, nor without probable cause supported by oath or affirmation.’’
    2
    General Statutes § 54-94a provides: ‘‘When a defendant, prior to the
    commencement of trial, enters a plea of nolo contendere conditional on the
    right to take an appeal from the court’s denial of the defendant’s motion
    to suppress or motion to dismiss, the defendant after the imposition of
    sentence may file an appeal within the time prescribed by law provided a
    trial court has determined that a ruling on such motion to suppress or motion
    to dismiss would be dispositive of the case. The issue to be considered in
    such an appeal shall be limited to whether it was proper for the court to
    have denied the motion to suppress or the motion to dismiss. A plea of nolo
    contendere by a defendant under this section shall not constitute a waiver
    by the defendant of nonjurisdictional defects in the criminal prosecution.’’
    3
    ‘‘As the result of a prior case, the Stamford police already knew the
    defendant by name.’’ State v. Correa, supra, 
    185 Conn. App. 313
     n.2.
    4
    Cooper alerted only to the defendant’s motel room.
    5
    According to testimony adduced by the state at the suppression hearing,
    Sergeant Novia previously had been assigned to the narcotics division of
    the Stamford Police Department.
    6
    When, however, Sergeant O’Brien asked the defendant about the $3600
    in cash that he was carrying, the defendant stated that he had ‘‘papers’’ to
    prove that he had ‘‘earned’’ the money. Queried further by Sergeant O’Brien
    about those papers, the defendant indicated that they were in the motel
    room, the location that, the defendant stated, was ‘‘where [he] live[d].’’
    7
    ‘‘Sergeant O’Brien characterized the sequence of events as follows: ‘[Ser-
    geant Broems] cracked the door, stuck his head in, cleared it, you know,
    visually, and then he relayed that nobody else was in there, [and] he closed
    the door.’’ State v. Correa, supra, 
    185 Conn. App. 315
     n.3.
    8
    We note that, under the protective sweep exception to the warrant
    requirement, which ‘‘is rooted in the investigative and crime control function
    of the police’’; State v. Kendrick, 
    314 Conn. 212
    , 229, 
    100 A.3d 821
     (2014);
    ‘‘a law enforcement officer present in a home under lawful process . . .
    may conduct a protective sweep when the officer possesses articulable facts
    [that], taken together with the rational inferences from those facts, would
    warrant a reasonably prudent officer [to believe] that the area to be swept
    harbors an individual posing a danger to those on the . . . scene.’’ (Empha-
    sis omitted; internal quotation marks omitted.) 
    Id., 230
    .
    9
    The defendant did not raise a federal constitutional challenge to the
    canine sniff.
    10
    Under Golding, a defendant who raises a constitutional claim for the
    first time on appeal may prevail on that unpreserved claim only if (1) the
    record is adequate for review, (2) the claim is of constitutional magnitude,
    (3) the alleged constitutional violation deprived the defendant of a fair trial,
    and (4) subject to harmless error analysis, the state cannot demonstrate
    the harmlessness of the constitutional violation beyond a reasonable doubt.
    State v. Golding, supra, 
    213 Conn. 239
    –40; see In re Yasiel R., supra, 
    317 Conn. 781
    .
    11
    We note that our decision in Kono was not issued until after the conclu-
    sion of the trial court proceedings in the present case.
    12
    The state has made no claim on appeal, however, that the alleged inade-
    quacy of the record stems from the performance of the canine sniff itself.
    Rather, the state’s contention concerning the inadequacy of the record is
    predicated solely on its inability to present evidence in the trial court to
    support its claim of an independent source. See State v. Correa, supra, 
    185 Conn. App. 322
     n.9.
    13
    We note that the opinion of the Appellate Court contains no reference
    to the state’s claim under the inevitable discovery doctrine, the applicability
    of which, the state further asserted, was definitively established by the
    testimony presented at the suppression hearing.
    14
    Accordingly, the Appellate Court did not reach the state’s alternative
    claim that, as the trial court found, the evidence obtained from the motel
    room was admissible under the independent source doctrine, even if the
    visual sweep was not justified by exigent circumstances. See State v. Correa,
    supra, 
    185 Conn. App. 340
     n.23.
    15
    Ordinarily, under Golding, we address the adequacy of the record before
    considering the merits of the unpreserved constitutional claim. See, e.g.,
    State v. Brunetti, 
    279 Conn. 39
    , 54, 
    901 A.2d 1
     (2006), cert. denied, 
    549 U.S. 1212
    , 
    127 S. Ct. 1328
    , 
    167 L. Ed. 2d 85
     (2007). For purposes of the defendant’s
    constitutional challenge to the canine sniff, however, we address the merits
    of the claim first and the adequacy of the record hereafter, in parts IV and
    V of this opinion.
    16
    It bears emphasis, however, that ‘‘[o]ur adoption of an analytical frame-
    work or methodology used under the federal constitution does not compel
    this court to reach the same outcome that a federal court might reach when
    the methodology is applied to a particular set of factual circumstances.
    Even when the state and [f]ederal [c]onstitutions contain the same [or
    similar] language and employ the same methodology to govern the interpreta-
    tion and application of that language [as they do in the present case], the
    ultimate constitutional decision often will turn [on] a factual assessment of
    how society feels about certain matters or how society functions under
    various conditions. . . . In each instance it could matter greatly which
    society you are talking about: a privacy claim lacking the national consensus
    necessary to trigger federal constitutional protection might still enjoy local
    support strong enough to dictate state constitutional protection . . . .’’
    (Internal quotation marks omitted.) State v. Kono, supra, 
    324 Conn. 89
     n.6;
    see also Doe v. Hartford Roman Catholic Diocesan Corp., 
    317 Conn. 357
    ,
    406, 
    119 A.3d 462
     (2015) (‘‘It is beyond dispute that we are not bound by
    federal precedents in interpreting our own state constitutional provisions.
    [F]ederal decisional law is not a lid on the protections guaranteed under
    our state constitution.’’ (Internal quotation marks omitted.)).
    17
    We consider these factors ‘‘mindful that state [c]onstitutional provisions
    must be interpreted within the context of the times. . . . We must interpret
    the constitution in accordance with the demands of modern society or it
    will be in constant danger of becoming atrophied and, in fact, may even
    lose its original meaning. . . . [A] constitution is, in [former United States
    Supreme Court] Chief Justice John Marshall’s words, intended to endure
    for ages to come . . . and, consequently, to be adapted to the various crises
    of human affairs. . . . In short, the [state] constitution was not intended
    to be a static document incapable of coping with changing times. It was
    meant to be, and is, a living document with current effectiveness. . . . The
    Connecticut constitution is an instrument of progress, it is intended to stand
    for a great length of time and should not be interpreted too narrowly or
    too literally so that it fails to have contemporary effectiveness for all of
    our citizens.’’ (Internal quotation marks omitted.) Doe v. Hartford Roman
    Catholic Diocesan Corp., 
    317 Conn. 357
    , 406 n.38, 
    119 A.3d 462
     (2015).
    18
    The trial court did not reach Kono’s state constitutional claim in light
    of its determination that the canine sniff violated Kono’s rights under the
    fourth amendment. State v. Kono, supra, 
    324 Conn. 85
    .
    19
    We did not address Kono’s fourth amendment claim because we con-
    cluded, first, that it was appropriate to begin by considering his claim under
    the state constitution; see State v. Kono, supra, 
    324 Conn. 82
    –83 n.3; and,
    second, that he was entitled to relief under article first, § 7, thereby making
    it unnecessary to consider his federal constitutional claim. See id., 104, 122.
    20
    As we discuss more fully in this opinion, the court’s holding in Jardines
    was predicated on the fact that the canine sniff at issue in that case was
    performed by the police canine within the curtilage of the home of the
    defendant without his explicit or implicit permission. Florida v. Jardines,
    
    supra,
     
    569 U.S. 5
    –6.
    21
    As we explain in part III of this opinion, in Kono, the state did not
    claim that a lesser standard than probable cause, such as a reasonable and
    articulable suspicion, would suffice for state constitutional purposes in the
    event we concluded, contrary to the state’s contention, that the canine sniff
    at issue in that case was a search protected by article first, § 7. See State
    v. Kono, supra, 
    324 Conn. 86
     n.4, 122 n.21.
    22
    It is important to note, however, that, for some, a motel room is home,
    either temporarily or, in some cases, indefinitely or even permanently.
    Indeed, there is some evidence in the record to suggest that the defendant
    or Taveras or both were living at the motel at the time of the canine sniff.
    See part I of this opinion. Asserting that he was, in fact, residing there at
    that time, the defendant contends that his ‘‘living situation was therefore
    like many others who must live in a motel when they have no [other]
    place to stay.’’ ‘‘Distinguishing motel rooms from apartments is problematic
    because it affords less protection and privacy rights to people whose motel
    room is their only home.’’ ‘‘Individuals, such as the defendant, and families
    struggling to keep a roof over their heads, should not be stripped of constitu-
    tional protections simply because they must live in a motel.’’ To support
    this contention, the defendant cites to Kono, in which we recognized the
    manifest injustice of allowing warrantless canine sniffs of the doors of
    apartments or other multiunit dwellings but not freestanding homes because
    doing so would effectively result in the allocation of constitutional protec-
    tions on the basis of income, race, and ethnicity. See State v. Kono, 
    324 Conn. 121
    –22. Although we acknowledge the persuasive force of the defendant’s
    argument, we need not determine the extent to which it might otherwise
    bear on our resolution of the present case in light of our determination, for
    the other reasons set forth in this opinion, that a canine sniff of the door
    to a motel room is a search within the meaning of article first, § 7, of the
    state constitution.
    23
    No doubt there are other attributes of a motel that may, depending on
    the circumstances, serve to diminish the legitimate privacy expectations of
    its guests. The state has not identified any, however, and we are aware of
    none, that cause us to conclude that a motel guest’s reasonable privacy
    interest in his or her room is so relatively inconsequential as to exempt a
    canine sniff of the exterior of that room from constitutional scrutiny.
    24
    In Kono, this court did not address the issue of whether the area immedi-
    ately in front of the door to an apartment is analogous to curtilage for
    purposes of article first, § 7, of the state constitution, resolving the case
    instead on the basis of the defendant’s reasonable expectation of privacy.
    See State v. Kono, supra, 
    324 Conn. 94
     n.10. But see 
    id., 104
     (federal precedent
    supports conclusion that warrantless canine sniff of door to apartment inside
    multiunit building is unlawful search ‘‘whether the defendant’s claim is
    reviewed under the . . . line of privacy based decisions [originating with
    Katz v. United States, 
    389 U.S. 347
    , 
    88 S. Ct. 507
    , 
    19 L. Ed. 2d 576
     (1967)]
    or under the principles of curtilage on which the court in Jardines relied’’).
    We also need not express an opinion as to whether the area immediately
    adjacent to an apartment or a motel room is analogous to curtilage. We
    conclude only that Hayes is inapposite because it sheds no light on that issue.
    25
    The defendant contends that, prior to the canine sniff, the police did
    not have a reasonable and articulable suspicion that the motel room con-
    tained illegal drugs. For present purposes, we may assume, as the state
    maintains, that the police did have a reasonable and articulable suspicion
    that there were such drugs in the room.
    26
    ‘‘Both the fourth amendment to the United States constitution and article
    first, § 7, of the Connecticut constitution prohibit the issuance of a search
    warrant in the absence of probable cause.’’ State v. Sawyer, 
    335 Conn. 29
    ,
    37, 
    225 A.3d 668
     (2020).
    27
    We note that, with respect to the second requirement of the independent
    source doctrine, which requires a fact based inquiry; see, e.g., Murray v.
    United States, supra, 
    487 U.S. 543
    ; the United States Supreme Court has
    observed: ‘‘To say that a [trial] court must be satisfied that a warrant would
    have been sought without the illegal entry is not to give dispositive effect
    to [the] police officers’ assurances on the point. [When] the facts render
    those assurances implausible, the independent source doctrine will not
    apply.’’ 
    Id.,
     540 n.2.
    28
    Typically, of course, a defendant who raises a constitutional claim for
    the first time on appeal is required to demonstrate the adequacy of the trial
    record for purposes of establishing his or her claim under Golding. See
    footnote 10 of this opinion. In the present case, however, there is no dispute
    that the record is adequate for review of the defendant’s claim concerning
    the invalidity of the canine sniff. See footnote 12 of this opinion. The issue,
    rather, is whether the record is adequate for review of the state’s claim that
    the evidence seized as a result of that canine sniff is admissible under the
    independent source doctrine. As we explain more fully hereinafter, if the
    record is inadequate for review of the state’s independent source claim, it
    would be unfair to address the defendant’s claim on that record because
    to do so would effectively foreclose the state from establishing its claim of
    an independent source.
    29
    In light of our determination that the current record is inadequate for
    our resolution of the state’s independent source claim, the state cannot
    prevail on its alternative contention that the record, if deemed adequate, is
    ambiguous as to whether the police would have sought a warrant irrespective
    of the canine sniff, an ambiguity that, the state further contends, defeats
    the defendant’s contention that the seized evidence was tainted by the
    canine sniff.
    30
    Whether facts are ‘‘enough to support a finding of probable cause is a
    question of law . . . subject to plenary review on appeal.’’ (Internal quota-
    tion marks omitted.) State v. Holley, 
    324 Conn. 344
    , 351, 
    152 A.3d 532
     (2016).
    The test for determining probable cause in the context of a search is well
    settled. ‘‘Probable cause to search exists if . . . (1) there is probable cause
    to believe that the particular items sought to be seized are connected with
    criminal activity or will assist in a particular apprehension or conviction
    . . . and (2) there is probable cause to believe that the items sought to be
    seized will be found in the place to be searched. . . . Although [p]roof of
    probable cause requires less than proof by a preponderance of the evidence
    . . . [f]indings of probable cause do not lend themselves to any uniform
    formula because probable cause is a fluid concept—turning on the assess-
    ment of probabilities in particular factual contexts—not readily, or even
    usefully, reduced to a neat set of legal rules. . . . Consequently, [i]n
    determining the existence of probable cause to search, the issuing magistrate
    assesses all of the information set forth in the warrant affidavit and should
    make a practical, nontechnical decision whether . . . there is a fair proba-
    bility that contraband or evidence of a crime will be found in a particular
    place. . . . Probable cause, broadly defined, [comprises] such facts as
    would reasonably persuade an impartial and reasonable mind not merely
    to suspect or conjecture, but to believe that criminal activity has occurred.’’
    (Citations omitted; internal quotation marks omitted.) State v. Shields, 
    308 Conn. 678
    , 689–90, 
    69 A.3d 293
     (2013), cert. denied, 
    571 U.S. 1176
    , 
    134 S. Ct. 1040
    , 
    188 L. Ed. 2d 123
     (2014). Thus, probable cause is determined by
    applying a ‘‘totality of the circumstances’’ test. (Internal quotation marks
    omitted.) State v. Holley, supra, 352; see also Florida v. Harris, 
    568 U.S. 237
    , 244, 
    133 S. Ct. 1050
    , 
    185 L. Ed. 2d 61
     (2013) (‘‘In evaluating whether
    the [s]tate has met [the probable cause] standard, [the court has] consistently
    looked to the totality of the circumstances . . . [and has] rejected rigid
    rules, bright-line tests, and mechanistic inquiries in favor of a more flexible,
    all-things-considered approach.’’ (Citations omitted.)).
    31
    We note that our summary of the evidence pertaining to the probable
    cause issue includes certain facts developed by the police after the canine
    sniff was performed, in particular, the information garnered by the police
    as a result of their encounter with the defendant. As the state asserts,
    however, it is perfectly clear that the encounter and the information that
    the police obtained therefrom had nothing to do with the canine sniff; it is
    apparent, rather, that Sergeant O’Brien was prompted to stop and question
    the defendant because the police knew that the defendant had rented the
    motel room that was the focus of their investigation. There is nothing in
    the record to suggest either that Sergeant O’Brien would not have confronted
    the defendant when he saw him on the street or that his interaction with
    the defendant would have been different in any way if the canine sniff had
    not occurred.
    32
    The Appellate Court did not reach the state’s claim concerning the
    applicability of the independent source doctrine to the canine sniff or the
    visual sweep. State v. Correa, supra, 
    185 Conn. App. 331
     n.20, 340 n. 23. In
    concluding that the police had probable cause to search the motel room
    prior to the visual sweep, the Appellate Court relied on the same facts that
    provide the basis for our determination that probable cause existed for
    purposes of the state’s claim of an independent source relative to the canine
    sniff. See id., 336.
    33
    As we previously noted, the police detained Taveras after they discov-
    ered marijuana and suspected that he had heroin in his possession following
    the traffic stop of the vehicle, operated by Brickman, in which Taveras
    was a passenger. The police did not transport Taveras to headquarters for
    processing, however, until more than one hour later and after they had
    received his grandmother’s consent to search his bedroom, where they
    found additional incriminating evidence.
    34
    As we explained in Brunetti, ‘‘[i]t is beyond dispute that the act of
    declining to sign a consent to search form is not tantamount to a refusal
    to consent to the search; rather, it is simply one of several relevant factors
    that a court considers in determining the validity of a consent to search.’’
    (Emphasis in original.) State v. Brunetti, 
    supra,
     
    279 Conn. 56
    . Thus, the
    refusal of Brunetti’s mother to sign the consent form was not dispositive
    of the issue of whether she had consented to the search. See 
    id.,
     56–62.
    35
    This court previously has ordered a remand for further proceedings in
    similar circumstances, albeit in a case decided prior to Golding. In State v.
    Badgett, 
    200 Conn. 412
    , 
    512 A.2d 160
    , cert. denied, 
    479 U.S. 940
    , 
    107 S. Ct. 423
    , 
    93 L. Ed. 2d 373
     (1986), the defendant, Earl Badgett, entered a condi-
    tional plea of nolo contendere to the illegal possession of heroin with intent
    to sell. Id., 413. Badgett then appealed, claiming, inter alia, that the trial
    court had improperly denied his motion to suppress evidence seized in
    connection with the warrantless search of the automobile he was driving
    at the time of his arrest. Id., 414. We agreed with Badgett that the warrantless
    entry into his vehicle by the police violated his rights under the fourth
    amendment. Id., 421. Instead of ordering the suppression of the evidence
    seized as a result of that search, however, we remanded the case to the
    trial court to give the state the opportunity to present evidence in support
    of a claim under the inevitable discovery doctrine, a claim that the state
    had not made in the trial court or on appeal. See id., 432–34. In doing so,
    we explained that, in light of the nature and importance of the issues
    involved, our remand for further proceedings was in the public interest and,
    under the circumstances, necessary to do justice between the parties. See
    id., 432 n.10. We reach the same conclusion in the present case.
    36
    As we previously have observed, the independent source and inevitable
    discovery doctrines are ‘‘closely related’’; (internal quotation marks omitted)
    State v. Vivo, supra, 
    241 Conn. 672
    ; because ‘‘[b]oth . . . rest on assump-
    tions that if the law enforcement agencies involved had eschewed the illegal
    activity, they nevertheless would have procured the evidence at issue’’;
    (internal quotation marks omitted) 
    id.,
     673 n.5; thus obviating the illegality
    and rendering suppression of the evidence unnecessary. See 
    id.,
     672–73. They
    ‘‘have distinct applications in relation to the exclusionary rule,’’ however;
    id., 672; inasmuch as ‘‘the independent source rule applies only upon proof
    that in actual fact the officers did not obtain the challenged evidence as a
    result of the primary illegality’’; (emphasis in original; internal quotation
    marks omitted) id., 673 n.5; whereas the inevitable discovery exception,
    which has been characterized as an ‘‘extrapolation from the independent
    source doctrine’’; Murray v. United States, supra, 
    487 U.S. 539
    ; ‘‘assumes
    that the evidence was in fact obtained as a consequence of the primary
    illegality but is invoked by proof that—hypothetically—if the officers had
    not engaged in the primary illegality, they would nevertheless, although
    in a different manner, have obtained the challenged evidence.’’ (Internal
    quotation marks omitted.) State v. Vivo, supra, 673 n.5.
    When, as in the present case, the police seize evidence pursuant to a
    search warrant but the application for that warrant was predicated in part
    on a prior, illegal entry, the independent source exception generally is the
    doctrine invoked for the purpose of establishing that suppression of the
    evidence is not required notwithstanding the unlawfulness of the prewarrant
    intrusion. See, e.g., United States v. Johnson, 
    supra,
     
    994 F.2d 987
     (observing
    that courts apply independent source doctrine in cases in which police
    discover evidence ‘‘while engaging in an unlawful search or entry, but where
    there was an independent basis apart from the illegal entry to allow a warrant
    to issue’’); see also United States v. Mulholland, 
    628 Fed. Appx. 40
    , 43 n.3
    (2d Cir. 2015) (observing that, in government’s view, independent source
    doctrine rather than inevitable discovery doctrine applied because chal-
    lenged evidence actually was seized pursuant to search warrant obtained
    following unlawful entry). Nevertheless, in the present case, the state relies
    on the inevitable discovery doctrine as well as the independent source
    doctrine. In light of our determination affording the state the opportunity
    to adduce additional evidence in connection with its claims under both
    doctrines, and because the distinction between the two doctrines is not
    always a ‘‘sharp’’ one; United States v. Baez, 
    983 F.3d 1029
    , 1037 (8th Cir.
    2020), cert. denied,       U.S.     , 
    141 S. Ct. 2744
    , 
    210 L. Ed. 2d 896
     (2021);
    see also United States v. Johnson, 
    380 F.3d 1013
    , 1014 (7th Cir. 2004); for
    present purposes, we need not express a view as to the applicability of
    the inevitable discovery doctrine separate and apart from the independent
    source doctrine.
    37
    With respect to the requirement that the state must prove by a preponder-
    ance of the evidence that the tainted evidence inevitably would have been
    discovered irrespective of the unlawful search, the Second Circuit has
    ‘‘acknowledged that using the [preponderance of the evidence] standard to
    prove inevitability creates a problem of probabilities, [observing] that even
    if each event in a series is individually more likely than not to happen, it
    still may be less than probable that the final event will occur.’’ United States
    v. Vilar, 
    729 F.3d 62
    , 84 (2d Cir. 2013), cert. denied, 
    572 U.S. 1146
    , 
    134 S. Ct. 2684
    , 
    189 L. Ed. 2d 230
     (2014). Recognizing the need to avoid any
    confusion that might result from this ‘‘semantic puzzle’’; United States v.
    Cabassa, 
    supra,
     
    62 F.3d 474
    ; the Second Circuit Court of Appeals has aptly
    underscored the significance of the ‘‘difference between proving by a prepon-
    derance that something would have happened and proving by a preponder-
    ance that something would inevitably have happened’’; (emphasis in origi-
    nal; internal quotation marks omitted) United States v. Heath, 
    455 F.3d 52
    ,
    59 n.6 (2d Cir. 2006); and further explained that ‘‘the government must prove
    that each event leading to the discovery of the evidence would have occurred
    with a sufficiently high degree of confidence for the [trial court] to conclude,
    by a preponderance of the evidence, that the evidence would inevitably
    have been discovered.’’ United States v. Vilar, supra, 84.
    38
    The facts relevant to this issue are set forth in detail in parts I and IV
    of this opinion.
    39
    It is true, of course, that the police did eventually seek and obtain a
    search warrant for the motel room. It bears noting, however, that the affidavit
    submitted to the issuing judge in support of the warrant application con-
    tained far more evidence of drugs in the motel room than the police pos-
    sessed prior to the canine sniff. Indeed, that affidavit contained truly over-
    whelming evidence of probable cause, including the results of the canine
    sniff, the observation by the police of drug related paraphernalia during
    their visual sweep of the room, and the statement by Taveras after he had
    been transported to police headquarters that he kept marijuana in the room.
    40
    Indeed, certain testimony adduced by the state indicates that the police
    would not have sought a warrant unless they were able to make what they
    believed was a strong showing of probable cause. In particular, as we noted
    previously; see part IV of this opinion; Sergeant Broems explained that,
    because the investigation was being conducted in the middle of the night,
    he wanted to make sure that the police had ample evidence of probable
    cause, sufficient to justify waking a judge to review the warrant application
    and affidavit.
    41
    As we previously noted, the state also argues that, even if the visual
    sweep was not supported by exigent circumstances, the trial court correctly
    concluded that any such illegality is obviated by the independent source
    doctrine. We discuss this contention in part VII of this opinion.
    42
    It bears emphasis, however, that our probable cause determination does
    not include the canine sniff or, for that matter, any information gathered
    by the police following the canine sniff that reasonably might have been
    obtained as a result of the canine sniff.
    43
    Having set forth the principles underlying the independent source doc-
    trine in part IV of this opinion, we do not repeat them here.
    44
    We note that, in reaching the same conclusion, the trial court excised
    only that information contained in the warrant affidavit that was derived
    from the visual sweep. Because the defendant challenged the propriety of
    the canine sniff for the first time on appeal, the trial court had no occasion
    to consider whether to excise the information obtained as a result of the
    canine sniff.