People v. Campbell , 425 P.3d 1163 ( 2018 )


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  •      The summaries of the Colorado Court of Appeals published opinions
    constitute no part of the opinion of the division but have been prepared by
    the division for the convenience of the reader. The summaries may not be
    cited or relied upon as they are not the official language of the division.
    Any discrepancy between the language in the summary and in the opinion
    should be resolved in favor of the language in the opinion.
    SUMMARY
    January 25, 2018
    2018COA5
    No. 14CA2479, People v. Campbell — Constitutional Law —
    Fourth Amendment — Reasonable Expectation of Privacy
    A division of the court of appeals considers whether a
    defendant has a reasonable expectation of privacy under the United
    States and Colorado Constitutions in global positioning system
    (GPS) data acquired from a defendant’s ankle monitor. The division
    concludes that the defendant did not have a reasonable expectation
    of privacy when the GPS data was voluntarily given to law
    enforcement officials by the company that owned the ankle monitor.
    The division further concludes that the trial court did not err in
    admitting the GPS evidence without first conducting a hearing to
    assess its reliability pursuant to People v. Shreck, 
    22 P.3d 68
     (Colo.
    2001).
    The division also rejects the defendant’s contentions that he
    was seized and searched in violation of the Fourth Amendment and
    that the victim’s in-court identification should have been
    suppressed due to an unconstitutionally suggestive out-of-court
    identification procedure.
    Accordingly, the division affirms the judgment of conviction.
    COLORADO COURT OF APPEALS                                        2018COA5
    Court of Appeals No. 14CA2479
    Jefferson County District Court No. 12CR1091
    Honorable Philip J. McNulty, Judge
    The People of the State of Colorado,
    Plaintiff-Appellee,
    v.
    Brandon Deshawn Campbell,
    Defendant-Appellant.
    JUDGMENT AFFIRMED
    Division I
    Opinion by JUDGE TAUBMAN
    Furman and Richman, JJ., concur
    Announced January 25, 2018
    Cynthia H. Coffman, Attorney General, Elizabeth Rohrbough, Senior Assistant
    Attorney General, Denver, Colorado, for Plaintiff-Appellee
    Suzan Trinh Almony, Alternate Defense Counsel, Broomfield, Colorado, for
    Defendant-Appellant
    ¶1    Defendant, Brandon Deshawn Campbell, appeals his
    judgment of conviction entered on jury verdicts finding him guilty of
    two counts of second degree burglary, one count of attempted
    second degree burglary, and three counts of criminal mischief. He
    contends that the trial court erred in denying his motion to
    suppress global positioning system (GPS) location data obtained via
    an ankle monitor he wore at the time of his arrest. As a matter of
    first impression, we conclude that Campbell did not have a
    reasonable expectation of privacy in the GPS data under the United
    States or Colorado Constitutions. Because we also perceive no
    grounds for reversal with regard to Campbell’s remaining
    contentions, we affirm.
    I. Background
    ¶2    In late April 2012, the victim, J.P., called 911 to report an
    intruder in his home. He provided the 911 dispatcher with a
    description of the intruder and stated that he believed the suspect
    had driven away in a white Ford Explorer.
    ¶3    Officers stopped a white Ford Explorer about ten minutes later
    approximately three miles from the victim’s home. Campbell was
    the driver and only occupant of the vehicle. Officers searched
    1
    Campbell and found he was wearing an ankle monitor. A detective
    later requested and received the GPS data from the company
    owning the ankle monitor. The GPS data revealed that, within the
    month before J.P.’s home was broken into, Campbell had been at
    the location of two other homes when they were burglarized. The
    GPS data also placed Campbell at J.P.’s house at the time of the
    break-in. Campbell was convicted of two counts of second degree
    burglary, one count of attempted second degree burglary, and three
    counts of criminal mischief.
    ¶4    On appeal, Campbell asserts that the trial court erred by
    denying his motions (1) to suppress evidence obtained as a result of
    a seizure and subsequent search of his person; (2) to suppress the
    GPS data obtained from the ankle monitor; (3) for a hearing to
    assess the admissibility of the GPS data; and (4) to suppress J.P.’s
    show-up identification. We disagree with all these contentions.
    II. Motion to Suppress Fruit of Seizure and Search
    ¶5    Campbell contends that the trial court erred in denying his
    motion to suppress evidence obtained as a result of an illegal
    seizure and search of his person. He argues that the officers’ use of
    handcuffs and firearms transformed his seizure into an arrest
    2
    unsupported by probable cause. In the alternative, Campbell
    asserts that, even if the officers’ use of force did not constitute an
    arrest, the officers nonetheless lacked reasonable suspicion to
    conduct an investigative detention. We conclude that the stop and
    subsequent search were lawful.
    A. Additional Facts
    ¶6    Officer Dave Smidt responded to J.P.’s 911 call. He was given
    the location of the alleged break-in and told that the suspect was a
    black male driving “an older model SUV, possibly a white Ford
    Explorer.” Less than ten minutes after the victim called 911, Officer
    Smidt saw a white Ford Explorer driven by a black man in the area
    of the victim’s home. He pursued the vehicle. Officer Smidt
    testified that he saw the vehicle turn rapidly without signaling
    before it eventually pulled over. He recounted that “it appeared the
    car was trying to get away from [him].”
    ¶7    After the vehicle stopped, Officer Smidt and another officer
    who had arrived in a separate car conducted a “felony traffic stop” ―
    they drew their weapons and ordered Campbell to exit the car, put
    his hands up, walk backwards toward them, and kneel so that he
    could be placed in handcuffs. After conducting a pat-down of
    3
    Campbell, the officers discovered he had an outstanding arrest
    warrant. He was then placed in the back of one of the police
    vehicles. He later made incriminating statements that he sought to
    suppress. Additionally, Campbell sought to suppress evidence of
    the officers’ discovery of the ankle monitor during the pat-down
    search.
    ¶8    In a bench ruling on the motion to suppress, the trial court
    stated in its findings of fact that Officer Smidt had followed
    Campbell for “a number of blocks” during which time “it looked like
    the driver was trying to get away from him.” The officer also
    observed Campbell commit traffic violations, specifically “failure to
    signal a turn” and potentially speeding by going “faster than [was]
    prudent in a residential neighborhood.” The trial court concluded
    that the officers had reasonable suspicion sufficient to stop
    Campbell, and that reasonable suspicion ripened into probable
    cause to arrest after J.P. identified Campbell as the intruder in a
    one-on-one showup conducted shortly after he was first stopped.
    As a result, the trial court denied Campbell’s motion to suppress.
    4
    B. Standajrd of Review
    ¶9     In reviewing a ruling on a motion to suppress, we defer to a
    trial court’s findings of fact if they are supported by competent
    evidence in the record. People v. King, 
    16 P.3d 807
    , 812 (Colo.
    2001). We review conclusions of law de novo. 
    Id.
    C. Applicable Law
    ¶ 10   The United States and Colorado Constitutions protect against
    unreasonable searches and seizures. U.S. Const. amends. IV, XIV;
    Colo. Const. art. II, § 7. A warrantless arrest is reasonable when an
    officer has probable cause to believe that a crime has been or is
    being committed. Devenpeck v. Alford, 
    543 U.S. 146
    , 153 (2004).
    Because probable cause is an objective inquiry, an officer’s
    subjective intent is irrelevant. See People v. Cherry, 
    119 P.3d 1081
    ,
    1083 (Colo. 2005). Thus, it is irrelevant if the offense that
    established probable cause is unrelated to the offense actually
    charged by the arresting officer. 
    Id.
    ¶ 11   “If an officer has probable cause to believe that an individual
    has committed even a very minor criminal offense in his presence,
    he may, without violating the Fourth Amendment, arrest the
    offender.” Atwater v. City of Lago Vista, 
    532 U.S. 318
    , 354 (2001)
    5
    (holding that officer had probable cause to make custodial arrest
    when he observed woman driving without wearing a seatbelt, a
    criminal violation under state traffic code); see People v. Triantos, 
    55 P.3d 131
    , 134 (Colo. 2002); see also § 16-3-102(1)(b), C.R.S. 2017
    (authorizing a peace officer to make an arrest when “[a]ny crime has
    been or is being committed by [a] person in his presence”).
    ¶ 12   In the context of vehicle stops, “the decision to stop an
    automobile is reasonable where the police have probable cause to
    believe that a traffic violation has occurred.” Whren v. United
    States, 
    517 U.S. 806
    , 810 (1996); see also Cherry, 119 P.3d at
    1083. Although minor traffic infractions are classified as “civil
    matter[s]” under Colorado statute, § 42-4-1701(1), C.R.S. 2017, an
    officer may constitutionally stop a driver based on observation of
    even a minor traffic infraction. See Cherry, 119 P.3d at 1084
    (concluding that officer’s observation of defendant committing two
    class B traffic infractions justified stop); see also People v. Chavez-
    Barragan, 
    2016 CO 16
    , ¶ 10, 
    365 P.3d 981
    , 983 (“Suspicion of even
    a minor traffic offense can provide the basis for a stop.”); People v.
    Altman, 
    938 P.2d 142
    , 145 (Colo. 1997) (concluding that “troopers
    6
    had a reasonable suspicion that criminal activity had occurred or
    was occurring” when they observed minor traffic infractions).
    D. Analysis
    ¶ 13   We conclude that the officers constitutionally stopped
    Campbell on the basis of traffic violations witnessed by Officer
    Smidt. Further, the officers had probable cause to believe Campbell
    was committing the felony of vehicular eluding, and therefore
    constitutionally arrested and searched him. We can affirm “on
    different grounds than those relied upon by the trial court” if those
    grounds are supported by “undisputed facts in the record.” People
    v. Aarness, 
    150 P.3d 1271
    , 1277 (Colo. 2006), as modified on denial
    of reh’g (Jan. 16, 2007). Campbell has not disputed Officer Smidt’s
    testimony with regard to the observed traffic violations, and does
    not assert on appeal that the trial court’s findings of fact on this
    point were clearly erroneous.
    ¶ 14   The parties initially limited their arguments to whether the
    officers had reasonable suspicion to stop Campbell, which was the
    basis for the trial court’s denial of Campbell’s motion to suppress.
    We requested supplemental briefing from both parties on the issue
    7
    of whether the violations observed by Officer Smidt gave rise to
    probable cause to stop and arrest Campbell.
    ¶ 15   Officer Smidt testified that he observed Campbell turn without
    signaling, a class A traffic infraction under Colorado law. See § 42-
    4-903(2), (5), C.R.S. 2017. We conclude that Officer Smidt’s
    observation of this violation of the traffic code justified the initial
    stop, regardless of whether the description communicated by the
    dispatcher independently created reasonable suspicion sufficient to
    stop the vehicle.
    ¶ 16   In their supplemental brief, the People further argue that the
    officers had probable cause to believe that Campbell was eluding
    the officers in violation of section 18-9-116.5(1), C.R.S. 2017, a
    class 5 felony. The record supports this contention. In its findings
    of fact, the trial court noted that “it looked like the driver was trying
    to get away from” the officer because the driver did not stop for
    several blocks after the officer first activated his lights and sirens.
    We therefore agree that “the facts and information within the
    arresting officers’ knowledge [we]re sufficient” to cause them to
    believe Campbell was committing the felony of vehicular eluding.
    People v. Bustam, 
    641 P.2d 968
    , 972 (Colo. 1982).
    8
    ¶ 17   Because the officers had the right to arrest Campbell for
    vehicular eluding, they had the right to use reasonable force in
    effectuating the arrest, see § 18-1-707(1)(a), C.R.S. 2017, and
    conduct a search of Campbell’s person incident to arrest, see
    Rawlings v. Kentucky, 
    448 U.S. 98
    , 111 (1980). Thus, we conclude
    that the trial court did not err in denying Campbell’s motion to
    suppress evidence obtained as a result of his seizure and search.
    III. Motion to Suppress GPS Data
    ¶ 18   Campbell asserts that the trial court erred in denying his
    motion to suppress the GPS data obtained from the ankle monitor.
    As an issue of first impression in Colorado, we conclude that,
    because Campbell did not have a reasonable expectation of privacy
    in the GPS location data generated by the ankle monitor under the
    United States or Colorado Constitutions, the trial court did not err.
    A. Additional Facts
    ¶ 19   When Campbell was arrested, the officers found a monitor on
    his ankle, which Campbell said he was wearing at the request of a
    private bail bondsman. The officers did not remove the ankle
    monitor.
    9
    ¶ 20   After Campbell’s arrest, Detective George McGlynn contacted
    the GPS monitoring company, Interstate Monitoring Bureau
    Corporation, to request the data generated by the ankle monitor.
    Detective McGlynn did not seek a warrant for this GPS data.
    Rather, Interstate Monitoring voluntarily provided the information
    requested. As explained during trial, the documents provided by
    the monitoring company detailed Campbell’s location every five
    minutes. The records introduced at trial covered over one month of
    Campbell’s whereabouts, totaling 9643 “tracking events” or
    five-minute increments. Based on the records, Detective McGlynn
    determined that Campbell had been at J.P.’s home, as well as two
    other homes when they were burglarized in March and April of
    2012.
    ¶ 21   In its bench ruling, the trial court concluded that Campbell
    lacked standing to challenge the allegedly unconstitutional search
    of the GPS data. In its findings of fact, the trial court noted that the
    ankle monitor had been imposed “as a condition of bond, whether it
    [was] court ordered or ordered by the bondsman.” The trial court
    reasoned that Campbell was “not asserting his own rights” because,
    even if the bondsman might have an expectation of privacy in the
    10
    records maintained by the monitoring company, Campbell did not.
    In light of its conclusion that Campbell lacked standing to contest
    the collection of the GPS data, the trial court denied his motion to
    suppress.
    B. Standard of Review
    ¶ 22   In reviewing a ruling on a motion to suppress, we defer to a
    trial court’s findings of fact if they are supported by competent
    evidence in the record. King, 16 P.3d at 812. We review
    conclusions of law de novo. Id.
    C. Applicable Law
    ¶ 23   The constitutional protections against unreasonable searches
    and seizures are personal. See Alderman v. United States, 
    394 U.S. 165
    , 174 (1969) (“Fourth Amendment rights are personal rights
    which . . . may not be vicariously asserted.”). To invoke the Fourth
    Amendment’s protections, a defendant must show that “the
    disputed search and seizure has infringed an interest of the
    defendant which the Fourth Amendment was designed to protect.”
    Rakas v. Illinois, 
    439 U.S. 128
    , 140 (1978).
    ¶ 24   While often referred to as an issue of standing, the Rakas
    Court recognized that this threshold question “belongs more
    11
    properly under the heading of substantive Fourth Amendment
    doctrine than under the heading of standing.” Id.; see also
    Rawlings, 
    448 U.S. at 106
     (noting that, after Rakas, the standing
    inquiry merged with the substantive question “whether
    governmental officials violated any legitimate expectation of privacy”
    held by the defendant). Thus, a person has “standing” to challenge
    a search “if the defendant maintained a reasonable expectation of
    privacy in the place searched.” People v. Galvadon, 
    103 P.3d 923
    ,
    930 (Colo. 2005).
    ¶ 25   To assess whether a defendant had a reasonable expectation
    of privacy in the place searched, we turn to the two-prong test set
    forth in Katz v. United States, 
    389 U.S. 347
    , 361 (1967) (Harlan, J.,
    concurring). People v. Gutierrez, 
    222 P.3d 925
    , 932 (Colo. 2009).
    Under that test, “[a] defendant must have an actual expectation
    that the area or activity subjected to governmental intrusion would
    remain free of such intrusion and such an expectation must be one
    that ‘society is prepared to recognize as reasonable.’” Galvadon,
    103 P.3d at 929 (quoting People v. Oates, 
    698 P.2d 811
    , 814 (Colo.
    1985)).
    12
    ¶ 26   In a line of cases, the United States Supreme Court has held
    that a person has no reasonable expectation of privacy in
    information he or she voluntarily discloses to a third party. See
    Smith v. Maryland, 
    442 U.S. 735
    , 742-43 (1979); United States v.
    Miller, 
    425 U.S. 435
    , 443 (1976); Hoffa v. United States, 
    385 U.S. 293
    , 302 (1966). Thus, “the Fourth Amendment does not prohibit
    the obtaining of information revealed to a third party and conveyed
    by him to Government authorities.” Miller, 
    425 U.S. at 443
    . This is
    true “even if the information is revealed on the assumption that it
    will be used only for a limited purpose and the confidence placed in
    the third party will not be betrayed.” 
    Id.
    ¶ 27   The Colorado Supreme Court, however, has held that article II,
    section 7 of the Colorado Constitution encompasses a “broader
    definition of what constitutes a legitimate expectation of privacy
    from government intrusion than that of its federal counterpart.”
    Galvadon, 103 P.3d at 927. Thus, the Colorado Supreme Court
    held that a bank customer had a reasonable expectation of privacy
    in his bank records under the Colorado Constitution, despite
    Supreme Court precedent that no reasonable expectation of privacy
    in such records exists under the Fourth Amendment. Charnes v.
    13
    DiGiacomo, 
    200 Colo. 94
    , 98-100, 
    612 P.2d 1117
    , 1119-21 (1980)
    (discussing and declining to follow Miller, 
    425 U.S. 435
    ); cf.
    Gutierrez, 222 P.3d at 935 (finding third party doctrine inapplicable
    and holding that taxpayers have reasonable expectation of privacy
    in income tax returns even when they disclose them to the Internal
    Revenue Service, the state department of revenue, and tax
    preparers). Similarly, the Colorado Supreme Court has held that
    telephone users have a reasonable expectation of privacy in the
    numbers they dial, despite the Supreme Court’s holding to the
    contrary. People v. Sporleder, 
    666 P.2d 135
    , 142 (Colo. 1983)
    (discussing and declining to follow Smith, 
    442 U.S. 735
    ).
    D. Analysis
    ¶ 28   To begin, we address the first prong of Katz, under which a
    defendant must have an actual expectation of privacy in the place
    searched. Campbell urges that he maintained a subjective
    expectation that the GPS data generated by his ankle monitor
    would not be exposed or otherwise subjected to “public scrutiny.”
    ¶ 29   As support for this assertion, he notes that the monitoring
    company stored the data “in a web-based secured interface.”
    Further, Campbell asserts that, because he wore the ankle monitor
    14
    at the request of a private bail bondsman, he believed the sole
    purpose of the GPS monitoring was to ensure that he did not
    abscond from the state and thereby fail to appear in court. He did
    not anticipate that the data would be used “to facilitate criminal
    investigations.” We assume without deciding that Campbell had an
    actual, subjective expectation of privacy in the GPS data. See
    Gutierrez, 222 P.3d at 932 (deferring to trial court’s finding that the
    defendant had a subjective expectation of privacy in tax returns
    where tax preparer kept the records in a secure cabinet).
    ¶ 30   Nevertheless, we conclude under the second prong of Katz that
    any expectation of privacy in the GPS data was not “one that society
    is prepared to recognize as ‘reasonable.’” Katz, 
    389 U.S. at 361
    (Harlan, J., concurring). Campbell asserts that “other jurisdictions
    have held that GPS location data implicates an individual’s privacy
    interest.” However, the cases he cites in support of that argument
    involved circumstances in which law enforcement agents
    surreptitiously installed GPS tracking devices on individuals’
    vehicles without obtaining warrants. See, e.g., United States v.
    Jones, 
    565 U.S. 400
     (2012). Campbell correctly asserts that those
    cases generally acknowledge the “unique attributes of GPS
    15
    surveillance.” 
    Id. at 415
     (Sotomayor, J., concurring). Certainly,
    several courts have recognized that long-term GPS monitoring
    “generates a precise, comprehensive record of a person’s public
    movements that reflects a wealth of detail about her familial,
    political, professional, religious, and sexual associations.” 
    Id.
    ¶ 31   However, the cases cited by Campbell do not address the
    precise issue here — whether a defendant has a reasonable
    expectation of privacy in GPS location data transmitted to and
    collected by a third party. Under the Supreme Court precedent,
    Campbell had no reasonable expectation of privacy in the GPS data
    because he voluntarily disclosed such data to a third party — his
    bondsman. Campbell was aware that his bondsman had access to
    the GPS location data to ensure that he did not leave the state while
    out on bond. In short, Campbell “t[ook] the risk, in revealing his
    affairs to another, that the information w[ould] be conveyed by that
    person to the Government.” Miller, 
    425 U.S. at 443
    . Thus, even if
    we assume he subjectively believed his GPS data would remain
    private, that expectation was not one society would be prepared to
    call reasonable.
    16
    ¶ 32   We reach the same result even under the broader protections
    afforded by the Colorado Constitution. In Charnes v. DiGiacomo,
    the supreme court distinguished Miller, 
    425 U.S. 435
    , by noting
    that a bank customer does not truly voluntarily disclose
    information about his or her financial transactions because bank
    accounts are necessary in modern life and because the customer’s
    primary purpose in having a bank account is facilitating the
    transfer of funds. 200 Colo. at 99, 
    612 P.2d at 1121
     (discussing
    and following Burrows v. Superior Court, 
    529 P.2d 590
     (Cal. 1974)).
    In contrast, here, Campbell chose to contract with the private bail
    bondsman and knew that the primary purpose of the ankle monitor
    was to track and record his location. Further, Campbell could not
    reasonably have anticipated that the GPS data would remain “free
    from governmental intrusion,” Sporleder, 666 P.2d at 140, when the
    bail bondsman could have reported his location to the court had he
    absconded in violation of his bond terms.
    ¶ 33   Accordingly, we conclude that Campbell cannot invoke the
    protections of either the Fourth Amendment of the United States
    Constitution or article 2, section 7 of the Colorado Constitution
    because he had no reasonable expectation of privacy in the GPS
    17
    data. Thus, the trial court did not err in denying his motion to
    suppress.
    IV. Admissibility of GPS Data
    ¶ 34   Campbell next contends that the trial court erred in admitting
    the GPS evidence without first holding a hearing to assess its
    reliability pursuant to People v. Shreck, 
    22 P.3d 68
     (Colo. 2001).
    We disagree.
    A. Additional Facts
    ¶ 35   Before trial, Campbell moved for a Shreck hearing on the
    admissibility of the GPS records and any expert testimony relating
    to that data. Campbell asserted that a hearing was necessary to
    assess the reliability of the evidence because Interstate Monitoring
    was not obligated to test the ankle monitor devices or ensure their
    accuracy, and because GPS technology is “fairly new.”
    ¶ 36   In denying the motion for the Shreck hearing, the trial court
    stated that “GPS has been around for a long time.” The trial court
    therefore concluded that “this is not the type of new and novel
    scientific evidence” that must be vetted by a pretrial evidentiary
    hearing.
    18
    ¶ 37   During trial, Bruce Derrick testified as an expert in GPS
    devices and technology. Derrick worked for SecureAlert, the
    manufacturer of the ankle monitor Campbell was wearing when
    arrested. He testified how GPS devices communicate location data
    to a monitoring center, as well as the specific mechanics of the
    ankle monitor device. Defense counsel cross-examined Derrick at
    length on the accuracy of GPS location data.
    B. Standard of Review
    ¶ 38   We review a trial court’s evidentiary ruling for an abuse of
    discretion. People v. Veren, 
    140 P.3d 131
    , 136 (Colo. App. 2005). A
    trial court abuses its discretion when its ruling is “manifestly
    arbitrary, unreasonable, or unfair.” 
    Id.
    ¶ 39   We review any error in denying a Shreck hearing under the
    nonconstitutional harmless error standard. People v. Wilson, 
    2013 COA 75
    , ¶ 24, 
    318 P.3d 538
    , 543. Under this standard, we will
    reverse only if the error “substantially influenced the verdict or
    affected the fairness of the trial proceedings.” Hagos v. People,
    
    2012 CO 63
    , ¶ 12, 
    288 P.3d 116
    , 119 (quoting Tevlin v. People, 
    715 P.2d 338
    , 342 (Colo. 1986)).
    C. Applicable Law
    19
    ¶ 40   CRE 702 governs the admissibility of scientific evidence as
    well as expert testimony. Shreck, 22 P.3d at 77. A trial court’s
    determination as to scientific evidence’s admissibility should be
    “broad in nature” and flexible, with the ultimate goal of assessing
    whether the evidence is relevant and reliable. Id. A trial court
    assesses whether scientific evidence and related expert testimony
    are admissible by considering whether (1) the scientific principles
    underlying the expert’s testimony are reliable; (2) the expert is
    qualified to give an opinion on the subject; (3) the testimony will be
    helpful to the jury; and (4) the probative value of the testimony is
    substantially outweighed by the danger of unfair prejudice. See id.
    at 77-79; see also People v. Rector, 
    248 P.3d 1196
    , 1200 (Colo.
    2011).
    ¶ 41   Once a party requests that evidence be subjected to a Shreck
    analysis, the trial court can, in its discretion, hold an evidentiary
    hearing on the matter. Wilson, ¶ 23, 318 P.3d at 543. However, the
    trial court is not required to conduct an evidentiary hearing if it
    “already has sufficient information to make specific findings under
    Shreck.” Id.
    20
    ¶ 42     Concerns about conflicting theories or the reliability of
    scientific principles go to the weight of the evidence, not its
    admissibility. See Estate of Ford v. Eicher, 
    250 P.3d 262
    , 269 (Colo.
    2011). Such concerns “are adequately addressed by vigorous
    cross-examination, presentation of contrary evidence, and careful
    instruction on the burden of proof.” 
    Id.
     (citing Shreck, 22 P.3d at
    78).
    D. Analysis
    ¶ 43     We conclude that the trial court did not abuse its discretion in
    denying Campbell’s motion for a pretrial hearing on the
    admissibility of the GPS data. GPS technology is prevalent in
    modern society and widely regarded as reliable. “Courts routinely
    rely on GPS technology to supervise individuals on probation or
    supervised release, and, in assessing the Fourth Amendment
    constraints associated with GPS tracking, courts generally have
    assumed the technology’s accuracy.” United States v. Brooks, 
    715 F.3d 1069
    , 1078 (8th Cir. 2013). Indeed, the concurrence in Jones
    acknowledged that GPS technology in modern cell phones “permit[s]
    more precise tracking” than previous technology allowed. Jones,
    
    565 U.S. at 428
     (Alito, J., concurring in the judgment). The
    21
    overarching concern of any Shreck analysis is the reliability and
    relevance of the scientific evidence, and we conclude, like other
    courts, that GPS evidence is sufficiently reliable to satisfy CRE 702.
    ¶ 44   We realize that Colorado’s standard for the admissibility of
    scientific evidence differs from the test laid out in Daubert v. Merrell
    Dow Pharmaceuticals, Inc., 
    509 U.S. 579
     (1993), and that other
    state rules of evidence may differ from CRE 702. Nevertheless, we
    find it instructive to consider the admissibility of GPS evidence in
    other jurisdictions which have held that GPS evidence is reliable
    and, thus, admissible. See Brooks, 715 F.3d at 1078 (affirming
    district court’s taking judicial notice of “the accuracy and reliability
    of GPS technology,” and thus allowing GPS evidence without expert
    testimony); United States v. Mathews, 
    250 F. Supp. 3d 806
    , 819 (D.
    Colo. 2017) (denying the defendant’s motion for a Daubert hearing
    on GPS data and stating that the defendant’s challenge to the
    accuracy of the GPS data was “a matter for cross-examination”);
    Brown v. State, 
    163 S.W.3d 818
    , 824 (Tex. App. 2005) (holding GPS
    records sufficiently reliable); see also James Beck et al., The Use of
    Global Position System (GPS) and Cell Tower Evidence to Establish a
    Person’s Location, 49 No. 1 Crim. L. Bull. art. 7 (Winter 2013) (“The
    22
    relatively unchallenged science behind GPS and the extensive,
    successful reliance on the technology during the past 30 years
    justify its admissibility in court.”); cf. United States v. Thompson,
    393 F. App’x 852, 859 (3d Cir. 2010) (allowing a lay witness “to
    testify concerning the operation of [a] GPS device”).
    ¶ 45   In any event, here, Derrick was properly qualified to testify as
    an expert on GPS technology. Campbell conducted voir dire of
    Derrick and thoroughly cross-examined him on the accuracy of GPS
    technology generally and the ankle monitor device specifically.
    ¶ 46   In light of the reliability of GPS evidence, we conclude that the
    trial court did not err in denying Campbell’s motion for a pretrial
    Shreck hearing.
    V. Motion to Suppress Identification
    ¶ 47   Campbell’s final contention is that the trial court erred in
    denying his motion to suppress J.P.’s identification. He asserts
    that, because the out-of-court identification procedure was unduly
    suggestive and unreliable, admission of J.P.’s in-court identification
    violated his constitutional due process rights. We disagree.
    23
    A. Additional Facts
    ¶ 48   J.P. encountered Campbell in the stairway of his house. The
    victim had just woken up when he heard noises downstairs, and he
    was not wearing his contact lenses or eyeglasses. It was
    midmorning and the house was well lit. The two men were
    approximately ten feet away from each other for one or two seconds
    before Campbell ran out of the house. During the 911 call, the
    victim described Campbell as a black male, about 5’8” or 5’9” tall,
    wearing a dark gray or black hoodie, dark jeans, and white
    sneakers.
    ¶ 49   When officers stopped Campbell’s car, the victim was still on
    the line to the 911 dispatcher. The dispatcher told him that officers
    had pulled over a vehicle matching the description he had given.
    Shortly after the 911 call ended, an officer took the victim to the
    location where Campbell had been pulled over.
    ¶ 50   When the victim got to the scene of Campbell’s arrest, there
    were four or five police vehicles, two police motorcycles, and more
    than eight police officers present. There were no other people aside
    from Campbell and the victim. When the victim was driven to the
    24
    scene, Campbell was seated in the backseat of a police vehicle in
    handcuffs. Campbell was the only black person at the scene.
    ¶ 51   The victim testified that he “knew almost immediately” that
    Campbell had been the man who broke into his home. An officer
    told him to “slow down [and] make sure.” After another minute or
    so, the victim again positively identified Campbell. The victim was
    wearing eyeglasses during the show-up identification, though he
    later testified that his uncorrected vision was “not bad” and he
    merely preferred to have eyeglasses on.
    ¶ 52   The trial court found that the show-up procedure utilized by
    the officers here was suggestive. However, the trial court
    nonetheless denied Campbell’s motion to suppress the out-of-court
    identification because it found that the identification was reliable
    under the totality of the circumstances.
    B. Standard of Review
    ¶ 53   We review a trial court’s determination on the admissibility of
    an identification as a mixed question of fact and law, affording
    deference to the findings of fact and reviewing the legal conclusions
    de novo. See Bernal v. People, 
    44 P.3d 184
    , 190 (Colo. 2002).
    25
    ¶ 54   We review preserved errors of constitutional dimension for
    constitutional error, meaning we will reverse unless the People
    show that the error was harmless beyond a reasonable doubt.
    Hagos, ¶ 11, 288 P.3d at 119.
    C. Applicable Law
    ¶ 55   In considering a challenge to an out-of-court identification, a
    court must follow a two-step analysis. Bernal, 44 P.3d at 191.
    First, a defendant must prove that the identification procedure was
    unduly suggestive. See id. If the defendant shows the procedure
    was impermissibly suggestive, the burden then shifts to the People
    to show that the identification was nevertheless reliable under the
    totality of the circumstances. Id.
    ¶ 56   Under the second step of this analysis, the court may consider
    several factors, including “(1) the opportunity of the witness to view
    the criminal at the time of the crime; (2) the witness’s degree of
    attention; (3) the accuracy of the witness’s prior description of the
    criminal; (4) the level of certainty demonstrated by the witness at
    the confrontation; and (5) the length of time between the crime and
    the confrontation.” Id. at 192. Ultimately, the suggestiveness of the
    identification procedure must be balanced against the indicia of
    26
    reliability; provided that there is not a “very substantial likelihood of
    irreparable misidentification,” the identification is admissible. Id.;
    see also People v. Weller, 
    679 P.2d 1077
    , 1083 (Colo. 1984).
    D. Analysis
    ¶ 57   The trial court found, Campbell argues, and the People do not
    contest that the show-up procedure utilized here was impermissibly
    suggestive. We agree. When the victim arrived at the scene of
    Campbell’s arrest, Campbell was handcuffed in the back of a police
    vehicle surrounded by officers and he was the only black person
    present. Moreover, the dispatcher told the victim that officers had
    pulled over a vehicle matching his description. This show-up
    procedure was impermissibly suggestive. See generally Weller, 679
    P.2d at 1083 (“One-on-one showups are not favored and tend to be
    suggestive.”).
    ¶ 58   Nevertheless, we conclude that the People met their burden of
    proving that the identification was reliable despite the suggestive
    procedure. With regard to the first factor set forth in Bernal, the
    victim had the opportunity to see the intruder for one or two
    seconds in a well-lit area while the two men were about ten feet
    away from one another. Moreover, the victim testified that,
    27
    although he was not wearing contact lenses or eyeglasses, he felt he
    was able to see the intruder sufficiently to later identify him. As for
    the second factor, the trial court concluded that the victim was
    startled when he encountered the intruder, which heightened his
    degree of attention, and we defer to this finding.
    ¶ 59   The third factor –– the accuracy of the witness’ description ––
    weighs less in favor of the People. The victim’s description of the
    intruder was somewhat generic, and there were inconsistencies
    between the description provided to the 911 dispatcher and
    Campbell’s actual appearance. However, looking to the fourth
    factor, the victim’s confidence in the identification was high. He
    quickly confirmed that Campbell was the intruder once on the
    scene, and he later testified that he was ninety-five percent sure his
    identification was accurate. He was also “very positive” on the
    color, make, and model of the car that he saw driving away from his
    home. Finally, the time between the crime and confrontation was
    extremely brief. The identification occurred less than an hour after
    the victim first saw the intruder.
    ¶ 60   In sum, especially in light of the strength of the final two
    factors, we conclude that the identification was reliable despite the
    28
    suggestiveness of the procedure. We cannot say that, given the
    totality of the circumstances, there was a “very substantial
    likelihood of irreparable misidentification.” Bernal, 44 P.3d at 192.
    As a result, we conclude the trial court did not err in denying the
    motion to suppress the identification.
    VI. Conclusion
    ¶ 61   Accordingly, the judgment is affirmed.
    JUDGE FURMAN and JUDGE RICHMAN concur.
    29