Commonwealth v. Dyette , 87 Mass. App. Ct. 548 ( 2015 )


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    13-P-1335                                               Appeals Court
    COMMONWEALTH   vs.   DARREN DYETTE.
    No. 13-P-1335.
    Suffolk.      January 5, 2015. - June 24, 2015.
    Present:   Katzmann, Sullivan, & Blake, JJ.
    Firearms. Practice, Criminal, Required finding, Motion to
    suppress, Harmless error, Argument by prosecutor,
    Instructions to jury. Cellular Telephone. Constitutional
    Law, Search and seizure, Investigatory stop, Reasonable
    suspicion, Probable cause. Search and Seizure, Reasonable
    suspicion, Probable cause, Search incident to lawful
    arrest, Exigent circumstances. Error, Harmless.
    Constitutional Law, Harmless error. Evidence,
    Consciousness of guilt.
    Indictments found and returned in the Superior Court
    Department on November 19, 2010.
    A pretrial motion to suppress evidence was heard by D.
    Lloyd Macdonald, J., and the cases were tried before him.
    Alexei Tymoczko for the defendant.
    David D. McGowan, Assistant District Attorney (Matthew L.
    Feeney, Assistant District Attorney, with him) for the
    Commonwealth.
    SULLIVAN, J.       After a jury trial, the defendant, Darren
    Dyette, was convicted of possession of a firearm and carrying a
    2
    loaded firearm.    See G. L. c. 269, § 10(a), (n).1    The defendant
    contends on appeal that his motion to suppress was wrongly
    denied because (1) the police lacked reasonable suspicion to
    conduct an investigatory stop, (2) the stop escalated to an
    arrest lacking probable cause when the defendant was ordered to
    the ground at gunpoint and handcuffed, and (3) the police lacked
    a basis under either the exigency exception or the search
    incident to arrest exception to the warrant requirement to
    conduct a warrantless search of his cellular telephone (cell
    phone) at the scene and after booking.      The defendant also
    contends that there was insufficient evidence that he possessed
    the firearm.
    We conclude that the evidence was sufficient to support the
    convictions.   We also conclude that the stop and the arrest were
    proper, but that the warrantless search of the cell phone was
    unlawful, and that this much of the motion to suppress should
    have been allowed.    We also conclude that the error was not
    harmless beyond a reasonable doubt.      Accordingly, we reverse the
    convictions and remand for further proceedings.
    Background.     1.   Motion to suppress.   We recite the motion
    judge's factual findings supplemented by the uncontroverted
    1
    The defendant thereafter pleaded guilty to the second and
    subsequent offense portion of the count for possession. G. L.
    c. 269, § 10(d).
    3
    evidence at the motion hearing.2    On the night of July 3-4, 2010,
    four police officers, all members of the youth violence strike
    force, were in plain clothes in an unmarked vehicle patrolling
    Martin Luther King Boulevard in the Roxbury neighborhood of
    Boston.    The officers drove past Washington Park, where a crowd
    of people were drinking and shooting off fireworks.     The park
    was known to the officers as an area of high firearm activity,
    including homicides and other shootings.    They made a U-turn and
    circled back to the park.    Although the cruiser was unmarked, it
    was a Ford Crown Victoria automobile, a make and model which was
    well known in the community as a police vehicle.      The group in
    the park noted the officers' presence.
    When the officers arrived at the park, it was close to
    midnight and the park lights were off.    This indicated to all
    the officers that the park was closed, and that all present were
    trespassing.    One officer, a former Boston municipal police
    officer, knew that the lack of lighting and the late hour meant
    that the park was officially closed.
    As they pulled to a stop, the officers took note of two men
    standing at the far end of a basketball court near a rock wall.
    The two men appeared "overly concerned" by the officers'
    presence.    After "bouncing around looking" at the officers, the
    2
    The motion judge was also the trial judge.
    4
    two men began to leave the park at a normal pace.    They then
    began to run, colliding with each other as they ran.
    All but one of the officers got out of the unmarked car and
    gave chase on foot.    When the officers reached the rock wall
    behind the basketball court, they saw that the two men had run
    in different directions into the adjoining wooded area of the
    park.    One of the men, the defendant, wearing a white shirt and
    baseball cap, ran to the right and the other man, wearing a blue
    shirt, ran to the left.    The officers pursued the defendant to
    the right, but lost sight of him during the chase for a short
    time.
    At the same time, Officer Steele, who remained in the
    unmarked car, activated his blue lights and drove to the back of
    the park to a spot where a person leaving the park on foot would
    likely exit, while the other officers gave chase on foot.    He
    then turned off his blue lights.    After hearing a radio
    broadcast that one of the two men was headed toward his
    location, Officer Steele saw the defendant, wearing a black tank
    top and holding a cell phone near his head,3 running out of the
    park.    Officer Steele did not recognize the defendant at first,
    but as they drew closer to one another he recognized the
    defendant from "numerous encounters, one including a firearm
    arrest."    Officer Steele got out of the car with his gun drawn,
    3
    The cell phone was described as a "flip phone."
    5
    ordering the defendant to the ground.     The defendant complied,
    and was pat-frisked and handcuffed.
    The defendant told Steele that he had not been in the park,
    but had been walking down the street.4    When asked why he was
    breathing heavily, the defendant stated that he had been arguing
    with his girlfriend on his cell phone.     Officer Steele took the
    defendant's cell phone, looked at the call log, and saw that
    there was an array of numbers and symbols that did not represent
    a telephone number.
    The officers, including Officer Steele, canvassed the area
    while the defendant was detained by other officers who had
    arrived on the scene.     In a garbage can near the park entrance
    where the officers saw the defendant emerge, they found the
    white shirt and white hat that the defendant had been wearing
    before the chase.     The officers also found two loaded firearms
    near the rock formation where the chase had begun, one to the
    left, and one located further to the right along the defendant's
    flight path.
    The defendant was arrested, charged with possession of the
    gun found to the right, and given his Miranda5 rights at the
    police station.     He spoke with the booking sergeant and denied
    4
    The officers who chased the defendant also said they saw
    him run out of the park.
    5
    Miranda v. Arizona, 
    384 U.S. 436
    (1966).
    6
    that the gun was his.     He continued to claim that he was arguing
    with his girlfriend before he saw the officers, and stated that
    she was also the person he had called from the booking area.
    The defendant's cell phone call log was examined by the booking
    sergeant some five hours after the arrest.      The booking sergeant
    testified that it could take several days to get a warrant, and
    that he was concerned that incoming calls (there had been three)
    would "push out" previous calls on the call log, which he
    believed permitted only a limited number of calls.      The log
    showed that the defendant was not talking with his girlfriend as
    he had claimed, and that she was not the person whom he had
    called from the booking area, as he also claimed.
    2.   Trial testimony.   The evidence at trial was
    substantially the same as the evidence offered at the
    suppression hearing, albeit offered in greater detail.      No
    reference was made to the failure to obtain a warrant, or to the
    defendant's prior firearms offense, but the Commonwealth was
    permitted to introduce evidence that Officer Steele recognized
    the defendant.    The defendant stipulated that the hat and shirt
    were his; the Commonwealth introduced deoxyribonucleic acid
    (DNA) evidence tying him to the two items.     No fingerprints were
    found on the gun, and no DNA evidence was extracted from the
    gun.    Two photographs of the defendant's cell phone call log
    were introduced in evidence at trial, and both Officer Steele
    7
    and the booking sergeant testified to the defendant's statements
    that prompted them to check the call log, as well as the
    contents of the call log, and the discrepancy between the call
    log and the defendant's representations.
    The Commonwealth's theory of the case was that the
    defendant and his companion fled at the sight of the Crown
    Victoria in order to evade the police and get rid of the guns,
    and that the defendant's attempts to change his appearance by
    discarding his clothes, coupled with lies concerning his
    presence in the park and the telephone call with his girlfriend,
    showed that he was guilty.   The defense claimed that the
    defendant was a young man who had had previous experience with
    the police, that he was trespassing in the park after midnight,
    that he didn't want to be arrested for trespassing, and that he
    didn't want to "deal with the cops."   The defense maintained
    that there was no evidence linking the defendant to the gun, and
    that anyone in the park could have tossed the gun into the
    defendant's flight path after the officers had already passed
    the area.
    Discussion.   1.   Sufficiency of the evidence.   The
    Commonwealth was required to prove beyond a reasonable doubt
    that the defendant had actual or constructive possession of the
    8
    firearm.   Commonwealth v. Romero, 
    464 Mass. 648
    , 652 (2013).6
    "[W]e consider the evidence, together with permissible
    inferences from that evidence, in the light most favorable to
    the Commonwealth and determine whether any rational trier of
    fact could have found the essential elements of the crime beyond
    a reasonable doubt."   Commonwealth v. Forte, 
    469 Mass. 469
    , 481
    (2014) (quotations omitted).    See Commonwealth v. Farnsworth, 
    76 Mass. App. Ct. 87
    , 98-99 (2010) (sufficiency "is to be measured
    upon that which was admitted in evidence without regard to the
    propriety of the admission").
    The evidence at trial was as follows:    (1) the defendant
    and a companion reacted to the police presence at the park and
    fled, bumping into one another as they did, (2) the firearm was
    found to the right, in the path of the defendant's flight, (3)
    the white hat and shirt officers saw the defendant wearing at
    the basketball court were recovered from trash cans in the park
    along the defendant's flight path, (4) the defendant stipulated
    that the clothes were his and the Commonwealth submitted DNA
    evidence linking the defendant to the hat and shirt, (5) the
    defendant told Officer Steele that he had not been in the park,
    although Steele and other officers saw him run out of the park,
    (6) the defendant told Officer Steele and the booking sergeant
    6
    Although the Commonwealth proceeded on a theory of actual
    possession during trial, the judge's charge to the jury included
    instructions on both actual and constructive possession.
    9
    that he was out of breath because he had been arguing with his
    girlfriend on his cell phone, when the cell phone call log
    revealed this to be untrue, and (7) the defendant told the
    booking sergeant that his girlfriend, whom he had called earlier
    on his cell phone, was the same person he had called during
    booking, when the cell phone call log revealed this to be
    untrue.
    When viewed in the light most favorable to the
    Commonwealth, this evidence is sufficient to support the
    verdicts.   "While no recoverable fingerprints were found on the
    [gun] and no one saw anyone throw the firearm [away] during the
    chase, a jury reasonably could have inferred" that its location
    in the defendant's flight path was "consistent with where it
    would have landed had it been thrown" by the defendant when
    running from the police through the park.   Commonwealth v.
    Jefferson, 
    461 Mass. 821
    , 826 (2012).7   A rational jury could
    have also inferred that the defendant began to leave the park
    and run from the police for a reason, "and that the reason was
    to throw away contraband that [the defendant] feared the police
    7
    The defendant also contends that his motion to supplement
    the record to include measurements of distances in the park was
    wrongly denied. The judge did not abuse his discretion in
    denying the motion. See Commonwealth v. Bregoli, 
    431 Mass. 265
    ,
    280 n.28 (2000). The measurements were not part of the record
    before the jury. The jury took a view, but the distances
    witnessed by the jury in the view were not in evidence. See
    Commonwealth v. Gomes, 
    459 Mass. 194
    , 199 (2011) (view not
    strictly evidence).
    10
    would find during a stop."    
    Ibid. That none of
    the officers saw
    the defendant with the gun or discard the gun, and the "pitch
    dark" conditions in the park, go to the weight, not the
    sufficiency, of the evidence.    See 
    id. at 826-827.
      The location
    of the gun, in conjunction with the other evidence of
    consciousness of guilt, would permit a rational fact finder to
    conclude beyond a reasonable doubt that the defendant possessed
    the firearm.   
    Ibid. 2. Denial of
    motion to suppress.    The defendant contends
    that the judge erroneously denied his motion to suppress because
    (1) the stop was not based on reasonable suspicion, (2) if the
    stop was permitted, ordering the defendant to the ground at
    gunpoint impermissibly transformed the stop into an arrest
    lacking probable cause, and (3) regardless of the stop or
    arrest, the warrantless searches of the defendant's cell phone
    in the park and at the station were improper.
    The judge credited the officers' testimony in full.      The
    judge ruled that the officers had reasonable suspicion that the
    defendant was trespassing.8   The judge also found that the
    8
    The judge also found that there was reasonable suspicion
    because (1) the stop occurred in a high crime area, (2) the
    defendant and the other man were acting in a manner "markedly
    different" from the rest of the crowd in the park, (3) the
    defendant ran from the police without prompting, and (4) the
    defendant and the other man ran into each other because they
    were in a haste to flee. At oral argument the Commonwealth
    stated its intention to rely solely on a reasonable suspicion of
    11
    officer in the vehicle recognized the defendant as someone
    previously convicted of a firearm offense, justifying the
    further detention and restraint of the defendant.    The judge
    concluded that the recovery of the gun elevated the officers'
    reasonable suspicion to probable cause sufficient to arrest, and
    that exigent circumstances provided an exception to the warrant
    requirement, permitting the warrantless search of the
    defendant's cell phone.
    "When reviewing the denial of a motion to suppress, we
    accept the judge's findings of fact and will not disturb them
    absent clear error.   Commonwealth v. Watson, 
    455 Mass. 246
    , 250
    (2009).   We make an independent determination as to the
    correctness of the judge's application of constitutional
    principles to the facts as found.   Id."   Commonwealth v. Carr,
    
    464 Mass. 855
    , 873 (2013).
    a.    Reasonable suspicion.   The judge did not explicitly
    find when the stop occurred.   The facts are undisputed and we
    may make such a finding as a matter of law on the record
    presented.   See Commonwealth v. Sykes, 
    449 Mass. 308
    , 310
    (2007), citing Commonwealth v. Barros, 
    435 Mass. 171
    , 173 (2001)
    trespass. We likewise rest our opinion solely on this ground
    and do not address whether flight plus presence in a "high crime
    area" late at night are sufficient to support a finding of
    reasonable suspicion. See generally Commonwealth v. Jones-
    Pannell, 
    85 Mass. App. Ct. 390
    , 395-396, further appellate
    review granted, 
    469 Mass. 1106
    (2014); Commonwealth v. Warren,
    
    87 Mass. App. Ct. 476
    , 481-483 (2015).
    12
    ("Determining the precise moment at which a seizure occurs is
    critical to resolving the issue of suppression").    The stop
    occurred when the three police officers got out of the unmarked
    cruiser and began to pursue the defendant on foot while the
    remaining officer activated the cruiser's blue lights and drove
    to the back of the park.   See Commonwealth v. Thibeau, 
    384 Mass. 762
    , 764 (1981); Commonwealth v. Williams, 
    422 Mass. 111
    , 117
    (1996); Commonwealth v. Stoute, 
    422 Mass. 782
    , 782-783 (1996);
    Commonwealth v. Grandison, 
    433 Mass. 135
    , 138 (2001) (blue
    lights); Sykes, supra at 314 (chase).9
    The police may conduct a stop for a threshold inquiry where
    the officer has reasonable suspicion, "based on specific and
    articulable facts and the specific reasonable inferences" drawn
    therefrom, that criminal activity has taken place, is taking
    place, or is about to take place.   Commonwealth v. Silva, 
    366 Mass. 402
    , 405-406 (1974).   The reasonableness of the officer's
    suspicion must be assessed based on the factors present before
    the pursuit, i.e., the stop, ensued.     See Thibeau, supra at 764.
    The judge found that the officers had reasonable suspicion
    that the defendant was a trespasser based on the testimony of
    the three officers, including a former Boston municipal police
    9
    The Commonwealth acknowledges that the stop occurred at
    the time of pursuit. No argument has been made on appeal that
    the officers were merely following the suspects. Compare
    Commonwealth v. Perry, 
    62 Mass. App. Ct. 500
    , 502-503 (2004).
    13
    officer, that the park was closed to visitors because the park
    lights were off.10   The defendant contends that the officers'
    assessment was based on a mistake of fact, because the
    Commonwealth failed to show that the park was posted with no
    trespassing signs.   See G. L. c. 266, § 120 (requiring either
    direct admonition or posted notice to prove trespass).
    Reasonable suspicion is assessed based on the facts and
    circumstances known to a reasonable police officer at the time
    the stop is initiated.   This determination does not require
    perfect knowledge, but an assessment based on objective factors
    "sufficient to create a reasonable suspicion in . . . a
    reasonable . . . officer."   Commonwealth v. Bernard, 84 Mass.
    App. Ct. 771, 773 n.2 (2014), quoting from Commonwealth v.
    Smigliano, 
    427 Mass. 490
    , 493 (1998).   The absence of lighting
    in the park at midnight formed an objective basis for
    determining that the park was closed.
    The defendant maintains that the Commonwealth failed to
    meet its burden of proof because there was no evidence that the
    park was posted, and no crime was actually committed.     See
    Commonwealth v. Greene, 
    461 Mass. 1011
    , 1011-1012 (2012).
    Reasonable suspicion is not lacking even if the objective
    10
    The former municipal police officer's knowledge of
    municipal trespass ordinances may be imputed to his fellow
    officers. See Commonwealth v. Roland R., 
    448 Mass. 278
    , 285
    (2007).
    14
    factual basis for reasonable suspicion is shown after the fact
    to be erroneous.   See Commonwealth v. Rivas, 
    77 Mass. App. Ct. 210
    , 215-216 (2010) ("red rejection sticker" on car provided
    objective factual basis for concluding that there is or may be
    defect making operation of car unlawful even if operation was
    not, in fact, unlawful).   Cf. Commonwealth v. Wilkerson, 
    436 Mass. 137
    , 140 (2002), quoting from Commonwealth v. Storey, 
    378 Mass. 312
    , 321 (1979), cert. denied, 
    446 U.S. 955
    (1980)
    ("Probable cause to arrest is not vitiated when the basis on
    which the police officer acted is shown after the fact to have
    been erroneous, because the existence of probable cause is
    determined 'at the moment of arrest,' not in light of subsequent
    events").11
    For the first time on appeal the defendant cites a Boston
    municipal ordinance for the premise that the defendant was
    permitted to travel through the park after closing.   See Boston
    Parks and Recreation Commission Rule 1(f) (2014).   The ordinance
    11
    It is unclear whether the defendant also argues mistake
    of law, but in any event the argument is inapplicable. The late
    hour and absence of lighting provided an objective factual basis
    for concluding that the defendant and others were trespassing.
    Greene, supra at 1011-1012, cited by the defendant, is
    inapposite, as it deals with the sufficiency of proof of
    trespass for conviction. For this reason we need not address
    whether a mistake of law vitiates reasonable suspicion under
    Massachusetts law. Compare Heien v. North Carolina, 
    135 S. Ct. 530
    , 536-540 (2014) (stop based on mistake of law valid under
    Fourth Amendment to United States Constitution), with
    Commonwealth v. Censullo, 
    40 Mass. App. Ct. 65
    , 67-70 (1996)
    (invalidating stop based on mistake of law).
    15
    was not before the judge, and any argument based on the
    ordinance is waived.    See Commonwealth v. Quint Q., 84 Mass.
    App. Ct. 507, 514-515 (2013); Mass.R.Crim.P. 13(a)(2), as
    appearing in 
    442 Mass. 1516
    (2004).      Nor may this court take
    judicial notice of municipal ordinances.      See Cerwonka v.
    Saugus, 
    316 Mass. 152
    , 153 (1944); Commonwealth v. Berney, 
    353 Mass. 571
    , 572 (1968); Mass. G. Evid. § 202(c) (2014).
    Regardless, the officers' fully-credited testimony was that the
    defendant was not passing through the park, but was standing on
    the basketball court until the officers parked their unmarked
    vehicle outside of the basketball court, at which time the
    defendant fled.    The judge's conclusion that there was
    reasonable suspicion that the defendant was trespassing was not
    error.
    b.     Arrest without probable cause.    The defendant contends
    that ordering him to the ground at gunpoint impermissibly
    elevated the stop to an arrest lacking probable cause.      "An
    officer is entitled to take reasonable steps to ensure his
    safety.    Such steps do not automatically turn a stop into an
    arrest."   
    Williams, 422 Mass. at 117
    .     The use of handcuffs is
    also not dispositive.    
    Id. at 118.
    While "[t]he suspicion that the person encountered has an
    illegal gun may not of itself justify the use of force absent
    'other fear-provoking circumstances,'" Commonwealth v. Willis,
    16
    
    415 Mass. 814
    , 820 (1993), quoting from Commonwealth v. Bottari,
    
    395 Mass. 777
    , 782 (1985), the history of firearms offenses in
    the area, coupled with the officer's knowledge of the
    defendant's prior firearm offense, provided the officer with
    sufficient safety concerns to justify the officer's approach
    with gun drawn.     See Williams, supra at 117.   Restraining the
    defendant in handcuffs during the search of the park was
    permissible since he "posed a substantial flight risk given that
    he tried to flee" upon seeing the other officers get out of the
    unmarked cruiser.     
    Id. at 118.
    c.   Search of cell phone.      The Commonwealth argues on
    appeal that the search of the cell phone at the scene and the
    later search at the station were justified as a search incident
    to arrest, see Commonwealth v. Phifer, 
    463 Mass. 790
    (2012);
    Commonwealth v. Berry, 
    463 Mass. 800
    (2012), or alternatively as
    a search justified by exigent circumstances.      The United States
    Supreme Court's recent decision in Riley v. California, 134 S.
    Ct. 2473, 2494 (2014) ("search incident to arrest exception does
    not apply to cell phones"), decided after the judge's decision
    in this case, forecloses both arguments.      See Commonwealth v.
    Sheridan, 
    470 Mass. 752
    , 763 (2015) (same).
    In Phifer, the Supreme Judicial Court upheld the search of
    the call log of a "flip phone" at the time of booking.     The
    court held that the highly limited search was a lawful search
    17
    incident to arrest because there was probable cause to believe
    that the telephone would have evidence relevant to the crime
    (narcotics trafficking) for which the defendant was arrested.
    Phifer, supra at 796-798.   In 
    Berry, supra
    at 807, the Supreme
    Judicial Court likewise held that the booking detective's review
    of the call log on a flip phone constituted a proper search
    incident to arrest because "the police had reasonable grounds to
    believe that the recent call list would reveal evidence related
    to the drug distribution crime for which the defendant was
    arrested."   In both cases the Supreme Judicial Court limited the
    application of its holding, noting that its "assessment" would
    not necessarily "be the same on different facts, or in relation
    to a different type of intrusion into a more complex cellular
    telephone or other information storage device."   Phifer, supra
    at 797; 
    Berry, supra
    .   These holdings rested, however, on the
    foundational premise "that cellular telephones do not possess
    special characteristics that remove them from the general
    framework enunciated by the Supreme Court in the Edwards,
    Robinson, and Chimel line of cases."12   Phifer, supra at 794 n.5.
    In Riley, the Supreme Court rejected the application of the
    Edwards, Robinson, and Chimel rationale to the warrantless
    search of the call log of a flip phone at booking, requiring
    12
    See Chimel v. California, 
    395 U.S. 752
    , 762-763 (1969);
    United States v. Robinson, 
    414 U.S. 218
    , 234-235 (1973); United
    States v. Edwards, 
    415 U.S. 800
    , 802-803 (1974).
    18
    that a warrant be sought.    The Court concluded that the digital
    contents of cell phones "place vast quantities of personal
    information" in the hands of the police, and that the search of
    a cell phone "bears little resemblance to the type of brief
    physical search considered in Robinson."     
    Riley, supra
    at 2485.
    The Court also held that the Chimel factors -- officer safety13
    and prevention of destruction of evidence - generally have
    little application in the context of the search of a cell phone
    incident to arrest.   
    Id. at 2485-2487.
    Here, as in Riley, the Commonwealth argues that the
    warrantless search was justified by the second Chimel rationale
    -- preventing the destruction of evidence.     Similar arguments
    regarding telephone logs, as well as encryption, and even remote
    wiping, were considered and rejected in Riley.     The Court
    reasoned that remote wiping, a form of "destruction unique to
    digital data, . . . can be fully prevented" by, among other
    things, turning the telephone off or removing its battery.      
    Id. at 2486-2487.
      Encryption may be foiled by placing the telephone
    in a "Faraday bag," a "cheap, lightweight, and easy to use"
    aluminum foil bag.    
    Id. at 2487.
      With respect to password
    protection, the Court observed that "officers are very unlikely
    13
    An officer may examine the telephone to determine, for
    example, if a razor blade has been hidden there, but "[o]nce an
    officer has secured a phone and eliminated any potential
    physical threats, . . . data on the phone can endanger no one."
    
    Riley, supra
    at 2485.
    19
    to come upon such a phone in an unlocked state" and that "if
    officers happen to seize a phone in an unlocked state, they may
    be able to disable a phone's automatic-lock feature in order to
    prevent the phone from locking and encrypting data" while they
    seek a warrant.   
    Ibid. Finally, the Court
    expressly rejected
    the government's argument that "officers should always be able
    to search a phone's call log."    
    Id. at 2492.
    Here, the cell phone was found in an unlocked state.    There
    was no testimony suggesting that it was in fact password
    protected, or that there was any concern of remote wiping.
    There was no effort to secure the telephone in any fashion or to
    seek a warrant.   The rationale for the warrantless search was
    that the record of calls would be pushed out of the call log in
    the event of other incoming calls.   This problem could be
    averted either by turning the cell phone off, placing the cell
    phone in a Faraday bag, or securing the cell phone and seeking a
    warrant for it.   
    Riley, supra
    .   The warrantless search at the
    scene and at the station violated the Fourth Amendment to the
    United States Constitution.14
    14
    Riley did not address the feasibility of obtaining a
    warrant for the cell phone service provider's records. No claim
    was made by the Commonwealth below that such records were
    unavailable. At oral argument, the Commonwealth stated that it
    preferred to avoid the delay associated with obtaining records
    from a third party. As noted infra, however, no valid claim of
    exigency has been made here.
    20
    For similar reasons, no exigent circumstances were present.
    See Commonwealth v. Ericson, 
    85 Mass. App. Ct. 326
    , 331 n.8
    (2014) ("We recognize that data on a cell phone -- even in
    police custody -- may change through the length of time
    preceding execution of a search warrant. . . . [I]ncoming text
    messages may displace stored messages . . . . However, these
    possibilities do not necessarily create an exigency requiring an
    immediate search of a cell phone").     Exigent circumstances, such
    as "the need to prevent the imminent destruction of evidence in
    individual cases, to pursue a fleeing suspect, and to assist
    persons who are seriously injured or are threatened with
    imminent injury" may justify a warrantless search of a cell
    phone.    
    Riley, supra
    at 2494.   These circumstances are not
    present here, and for the reasons stated above, the possible
    degradation of the call log is not an exigent circumstance since
    that degradation is preventable.    See United States v. Camou,
    
    773 F.3d 932
    , 942 (9th Cir. 2014) ("volatile nature of call
    logs" is not exigent circumstance; Riley "forecloses" that
    argument).   See generally Commonwealth v. Kaupp, 
    453 Mass. 102
    ,
    106 n.7 (2009) ("The exigency necessitating . . . seizure
    dissipated once the computer had been secured, requiring the
    police to seek a search warrant" to examine its contents).15
    15
    We note that under Massachusetts law the inevitable
    discovery doctrine does not apply in this circumstance. See
    21
    Because this error is one of constitutional dimension, we
    must determine whether the admission of the evidence concerning
    the call log was harmless beyond a reasonable doubt.
    Commonwealth v. Charros, 
    443 Mass. 752
    , 765 (2005).16         "Under
    this standard, the burden shifts to the Commonwealth, see
    Commonwealth v. MacDonald (No.1), 
    368 Mass. 395
    , 399 (1975), to
    show that the wrongfully admitted evidence did not contribute to
    the verdicts.       See Commonwealth v. Peixoto, 
    430 Mass. 654
    , 660
    (2000)."    
    Ibid. "We have recognized
    that a constitutional
    violation gives rise to presumptive prejudice that can be
    overcome only where the Commonwealth makes an 'affirmative
    showing' of harmlessness beyond a reasonable doubt."
    Commonwealth v. Tyree, 
    355 Mass. 676
    , 701 (2010), quoting from
    Commonwealth v. Rios, 
    412 Mass. 208
    , 214 (1992).       See
    Commonwealth v. Hoyt, 
    461 Mass. 143
    , 154 (2011).       "The
    Commonwealth's brief makes no argument concerning whether the
    error was harmless, and thus it has not made the requisite
    showing."   Commonwealth v. Murphy, 
    448 Mass. 452
    , 471 (2007).
    Nonetheless, we consider the relevant factors.
    Commonwealth v. Benoit, 
    382 Mass. 210
    , 218-219 (1981) (requiring
    warrant). An inventory search would have resulted in discovery
    of the cell phone, not its contents. Compare Commonwealth v.
    O'Connor, 
    406 Mass. 112
    , 115-119 (1989).
    16
    Whether viewed as an old or new rule, the holding in
    Riley is applicable to cases pending on direct review.
    Commonwealth v. Clarke, 
    460 Mass. 30
    , 34-35 (2011), citing
    Teague v. Lane, 
    489 U.S. 288
    (1989).
    22
    "The 'essential question' is whether the error had, or
    might have had, an effect on the jury and whether the error
    contributed to or might have contributed to the jury's
    verdicts."   Commonwealth v. Housewright, 
    470 Mass. 665
    , 675
    (2015), quoting from Commonwealth v. Perrot, 
    407 Mass. 539
    , 549
    (1990).   It is not enough to show that the evidence was
    otherwise sufficient, or that the "inadmissible evidence was
    consistent with the admissible evidence.   Rather, we ask
    whether, on the totality of the record before us, weighing the
    properly admitted and the improperly admitted evidence together,
    we are satisfied beyond a reasonable doubt that the tainted
    evidence did not have an effect on the jury and did not
    contribute to the jury's verdicts."   
    Tyree, supra
    (quotation and
    citation omitted).
    In aid of this task, we look to factors such as "the
    importance of the evidence in the prosecution's case; the
    relationship between the evidence and the premise of the
    defense; who introduced the issue at trial; the frequency of the
    reference; whether the erroneously admitted evidence was merely
    cumulative of properly admitted evidence; the availability or
    effect of curative instructions; and the weight or quantum of
    evidence of guilt."   Commonwealth v. Dagraca, 
    447 Mass. 546
    , 553
    (2006).   See Commonwealth v. Mahdi, 
    388 Mass. 679
    , 697 (1983)
    23
    (these factors, though "useful," are "not exclusive or
    exhaustive").
    We conclude that the improperly admitted evidence was not
    harmless beyond a reasonable doubt.   
    Tyree, supra
    at 700-702.
    To be sure, the evidence of guilt was sufficient, but it was not
    overwhelming.   There was no testimony from any of the officers
    that they saw a concealed bulge, or that the defendant grabbed
    for his waistband, pressed his waist, ran stiff-armed or in an
    otherwise awkward manner, or engaged in any sort of furtive
    gesture.   Compare Commonwealth v. DePeiza, 
    449 Mass. 367
    , 371-
    372 (2007); Commonwealth v. Jones-Pannell, 
    85 Mass. App. Ct. 390
    ,
    397, further appellate review granted, 
    469 Mass. 1106
    (2014);
    Commonwealth v. Colon, 
    87 Mass. App. Ct. 398
    , 402 (2015).    No one
    saw the defendant make a throwing motion.     Compare Commonwealth
    v. Franklin, 
    456 Mass. 818
    , 823 (2010).     There was no DNA or
    fingerprint evidence to link the defendant to the gun.    There
    was no percipient witness who saw him with the gun, and the
    defendant denied that it was his.   The gun was found late at
    night along his flight path, but that path was located in a
    public park populated by a number of Fourth of July party-goers.
    The defense theory was that a party-goer may have tossed
    the gun after the police chase began, and that the defendant
    attempted to evade and mislead the police because he simply did
    not want to be questioned or detained.    This theory was not
    24
    summarily rejected by the jury.    After a period of deliberation,
    the jury requested reinstruction not only on reasonable doubt,
    but specifically on consciousness of guilt.    "[T]o overcome
    [the] presumption of harm, [the] Commonwealth's admissible
    evidence must be truly overwhelming" "in the sense that it was
    so powerful as to nullify any effect the [illegally obtained
    evidence] might have had on the jury."     
    Tyree, supra
    at 704 n.44
    (quotations omitted).17
    Here, the evidence and arguments at trial focused in large
    part on the inferences to be drawn from the consciousness of
    guilt evidence -- the defendant's flight, his discarding of his
    clothing, and his statements to the police regarding his
    presence in the park and the call to his girlfriend.      The
    improperly admitted evidence went to the heart of that aspect of
    the case.   The call log was indisputable, concrete proof that
    the defendant had not been talking on the cell phone with his
    girlfriend before his arrest.     The Commonwealth offered two
    witnesses, Officer Steele and the booking sergeant, to testify
    concerning what was found on the cell phone log.    The
    Commonwealth also introduced two photographs of the call log,
    17
    In 
    Tyree, supra
    at 700-704, the court determined that the
    admission of evidence which should have been suppressed was not
    harmless where the evidence tied the defendant to the crime and
    the evidence was a centerpiece of the prosecutor's closing
    argument.
    25
    all to show that the defendant had engaged in an elaborate
    fabrication which was disproved by concrete, physical evidence.
    The Commonwealth then repeatedly relied on the call log in
    its closing to portray the defendant as a man who was telling
    elaborate lies because he knew he was guilty of possessing the
    gun.   "[R]epeated emphasis on the improperly admitted evidence
    in the prosecutor's closing argument . . . reflects the
    centrality of that evidence to the Commonwealth's case."     
    Id. at 703.
      The evidence "increas[ed] the likelihood that the jury
    would view the defendant as a liar," who would make up a story
    to avoid responsibility for his crimes.    
    Hoyt, 461 Mass. at 155
    ,
    quoting from Commonwealth v. McNulty, 
    458 Mass. 305
    , 322 (2010).
    The observation has been made in another context that "[w]e
    cannot overestimate the effect on the jury of . . . [the]
    argument tending to show consciousness of guilt on the part of
    the defendant."   Commonwealth v. Person, 
    400 Mass. 136
    , 142
    (1987), quoting from Commonwealth v. Cobb, 
    374 Mass. 514
    , 521
    (1978).    The ongoing emphasis on the defendant's "lies" removes
    this case from those in which the improperly admitted evidence
    is considered merely cumulative.   See Commonwealth v. Galicia,
    
    447 Mass. 737
    , 747-748 (2006) (improperly admitted inculpatory
    statements were cumulative of properly admitted inculpatory
    statements); Commonwealth v. Martin, 
    467 Mass. 291
    , 309-310
    26
    (2014) (same; additional factors included flight after issuance
    of warrant and use of false name).
    The Commonwealth's case was built by carefully assembling
    each piece of evidence of consciousness of guilt.       The theme of
    the closing argument was that of a puzzle.       The prosecutor
    stated that the case was similar to a child's puzzle because the
    pieces of evidence were both big and small and that one could
    fill in the whole puzzle without seeing all the pieces.       He
    described the big pieces as the discovery of the gun, the
    flight, and the clothing.    He then turned to the defendant's
    "lies," and in the final moments of the closing argument,
    emphasized the "fake phone conversations," urging the jury to
    look at this "lie" in particular to fill in the "puzzle."         Given
    the emphasis placed by the prosecutor on the improperly admitted
    evidence, we can not say that the tainted evidence did not
    contribute to the jury's verdicts.      See Hoyt, supra at 156.
    The prosecutor's closing also contained statements which,
    when combined with the puzzle analogy and the emphasis placed on
    the improperly admitted evidence, underscore our conclusion that
    the admission of the improperly seized evidence was not harmless
    beyond a reasonable doubt.       The prosecutor stated, "We're not
    charging [the defendant] with that second firearm. . . . Maybe
    he had it.    Maybe he didn't.    Maybe it was the person with the
    blue shirt.    We don't know.    Because we don't know, we don't
    27
    charge.   What we do know is that [the defendant] is the only
    person who could have dropped that [firearm]."   The statement,
    "[b]ecause we don't know, we don't charge," followed closely by,
    "[w]hat we do know," constituted vouching insofar as the
    prosecutor "invite[d] the jury to rely on the prestige of the
    government and its agents rather than the jury's own evaluation
    of the evidence."   Commonwealth v. Caswell, 
    85 Mass. App. Ct. 463
    , 475 (2014), quoting from United States v. Torres-Gaindo,
    
    206 F.3d 136
    , 142 (1st Cir. 2000).   The prosecutor's statements
    also suggested that the Commonwealth charged the defendant with
    possession of the firearm because the Commonwealth had superior
    knowledge, inviting the jury to rely on the Commonwealth's
    investigatory apparatus and inherent credibility to credit its
    version of events and thus fill in the gaps in the "puzzle."
    While these statements may or may not constitute reversible
    error per se, they weigh heavily when determining whether other
    error of constitutional dimension is harmless beyond a
    reasonable doubt.
    Finally, there were no instructions which ameliorated the
    prejudice.   The judge fully and properly instructed the jury in
    accordance with Commonwealth v. Toney, 
    385 Mass. 575
    , 584-585
    (1982).   However, because the evidence was deemed properly
    admitted, the judge (understandably) incorporated the
    prosecutor's theory into the consciousness of guilt instruction,
    28
    telling the jury that "the Commonwealth has argued that [the
    defendant's] alleged flight after observing the officers . . .
    and his false statements, I believe in argument characterized as
    lies, after he was stopped by Officer Steele is evidence of his
    consciousness of guilt."    When the jury requested reinstruction
    on consciousness of guilt, they were given a written copy of
    this instruction.    Because the instruction highlighted the
    prosecutor's focus on "lies" that were proven in part by
    improperly admitted evidence, the instruction did not
    ameliorate, and indeed underscored, the prejudice.
    Conclusion.     Accordingly, the judgments are reversed, the
    verdicts are set aside, and the case is remanded for a new
    trial.
    So ordered.