People v. McKnight , 2017 COA 93 ( 2017 )


Menu:
  • COLORADO COURT OF APPEALS                                        2017COA93
    Court of Appeals No. 16CA0050
    Moffat County District Court No. 15CR16
    Honorable Michael Andrew O’Hara, III, Judge
    The People of the State of Colorado,
    Plaintiff-Appellee,
    v.
    Kevin Keith McKnight,
    Defendant-Appellant.
    JUDGMENT REVERSED AND CASE
    REMANDED WITH DIRECTIONS
    Division II
    Opinion by JUDGE DAILEY
    Berger, J., specially concurs
    J. Jones, J., specially concurs
    Announced July 13, 2017
    Cynthia H. Coffman, Attorney General, Paul Koehler, First Assistant Attorney
    General, Denver, Colorado, for Plaintiff-Appellee
    Douglas K. Wilson, Colorado State Public Defender, John B. Plimpton, Deputy
    State Public Defender, Denver, Colorado, for Defendant-Appellant
    ¶1    Since 2012, it has not been a violation of Colorado law for
    people who are at least twenty-one years old to possess up to one
    ounce of marijuana for personal use. Colo. Const. art. XVIII,
    § 16(3)(a) (Amendment 64). To be clear, such possession is neither
    a criminal violation nor a civil violation.
    ¶2    This case presents two questions arising from our state’s
    marijuana laws and law enforcement’s use of dogs trained to detect
    marijuana and other controlled substances. First, does deploying a
    dog trained to detect marijuana to sniff a legitimately stopped
    vehicle constitute a “search” for purposes of the constitutional
    prohibitions of unreasonable searches? If so, law enforcement may
    not deploy such a dog without reasonable suspicion of criminal
    activity. Second, did the dog’s alert in this case give police probable
    cause to search Kevin Keith McKnight’s truck given that the dog
    was trained to alert if he detected either legal or illegal substances?
    ¶3    Two of us (Dailey and Berger, JJ.) agree with McKnight in
    answer to the first question, that is, that under our state
    constitution, the deployment of the dog here was a “search”
    requiring reasonable suspicion of criminal activity. And because
    the totality of the relevant circumstances did not give police
    1
    reasonable suspicion to conduct a dog sniff of his truck, we
    conclude that the district court erred in denying his motion to
    suppress evidence found in the truck.
    ¶4    But two of us (J. Jones and Berger, JJ.) would also agree with
    McKnight in answer to the second question, that is, that the dog’s
    alert, in combination with the other relevant circumstances, did not
    give the police probable cause to search his truck, and, for that
    reason, the district court erred in denying his motion to suppress
    evidence found in the truck.
    ¶5    Because all of us agree that the court’s error in denying
    McKnight’s motion to suppress was not harmless beyond a
    reasonable doubt, we reverse the district court’s judgment of
    conviction and remand the case for further proceedings.
    I. Background
    ¶6    The police recovered a pipe containing white residue from
    McKnight’s truck. The People charged him with possession of a
    controlled substance (based on the residue) and possession of drug
    paraphernalia. McKnight moved to suppress the evidence found in
    his truck, arguing that law enforcement officers violated his
    constitutional rights by conducting a dog sniff of his truck without
    2
    reasonable suspicion1 and by otherwise searching his truck without
    probable cause.
    ¶7    At the suppression hearing, Officer Gonzales testified that he
    saw a truck parked in an alley. The truck left the alley and
    eventually parked outside of a house for about fifteen minutes.
    This house, according to Officer Gonzales, had been the subject of a
    search roughly seven weeks earlier that had turned up illegal drugs.
    When the truck drove away, Officer Gonzales followed it, saw it turn
    without signaling, and pulled it over.
    ¶8    McKnight was driving the truck. Officer Gonzales said he
    recognized McKnight’s passenger from previous contacts with her,
    “including drug contacts” involving the use of methamphetamine.
    But when asked on cross-examination at what time, to his
    knowledge, the passenger had last used methamphetamine, Officer
    Gonzales declined to speculate about that and conceded that he
    1 He argued that reasonable suspicion was necessary because the
    dog sniff in and of itself was a “search” subject to state
    constitutional protections; he did not argue (nor does he argue here)
    that he was subjected to an unreasonably prolonged traffic stop.
    See Rodriguez v. United States, 575 U.S. ___, ___, 
    135 S. Ct. 1609
    ,
    1614-15 (2015).
    3
    was “just aware that at some point in the past she had been known
    to [him] as a user of methamphetamine.”
    ¶9     At Officer Gonzales’ request, Sergeant Folks came to the scene
    with his certified drug-detection dog, Kilo. Kilo is trained to detect
    cocaine, heroin, ecstasy, methamphetamine, and marijuana. He
    indicates that he has detected the odor of one of these substances
    by exhibiting certain behavior — barking, for example. His
    indicative behavior, however, does not vary based on the particular
    substance or amount of the substance he has detected.
    ¶ 10   When Sergeant Folks deployed Kilo to sniff McKnight’s truck,
    Kilo displayed one of his trained indicators. Officers then told
    McKnight and the passenger to get out of the truck, searched it,
    and found a “glass pipe commonly used to smoke
    methamphetamine.”
    ¶ 11   After the district court denied McKnight’s suppression motion,
    the case proceeded to trial. A jury convicted McKnight of both
    counts.
    4
    II. Discussion
    A. Standard of Review
    ¶ 12   When reviewing a suppression order, we defer to the district
    court’s factual findings as long as evidence supports them, but we
    review de novo the court’s legal conclusions. Grassi v. People, 
    2014 CO 12
    , ¶ 11.
    B. Was Kilo’s Sniff a Search?
    ¶ 13   The Federal and State Constitutions give people the right to be
    free from unreasonable searches and seizures. U.S. Const. amend.
    IV; Colo. Const. art. II, § 7; People v. Zuniga, 
    2016 CO 52
    , ¶ 14.
    ¶ 14   “Official conduct that does not ‘compromise any legitimate
    interest in privacy’ is not a search subject to the Fourth
    Amendment.” Illinois v. Caballes, 
    543 U.S. 405
    , 408 (2005) (quoting
    United States v. Jacobsen, 
    466 U.S. 109
    , 123 (1984)). Any interest
    in possessing contraband is not legitimate. 
    Id. And so
    official
    “conduct that only reveals the possession of contraband” does not
    compromise any legitimate privacy interest. 
    Id. Applying that
    reasoning, the United States Supreme Court has held that
    employing a well-trained drug-detection dog during a lawful traffic
    stop does not implicate the Fourth Amendment because that is not
    5
    a search. 
    Id. at 409-10.
    Likewise, our supreme court has held that
    such a sniff is not a search under our state constitution. People v.
    Esparza, 
    2012 CO 22
    , ¶ 6.
    ¶ 15      Indeed, in People v. Mason, 
    2013 CO 32
    , the supreme court
    said:
    It is now settled that walking a trained
    narcotics detection dog around a car that has
    not been unlawfully stopped or detained does
    not implicate the protections of either the
    Fourth Amendment or Article II, section 7 of
    the state constitution.
    
    Id. at ¶
    10.2
    ¶ 16      McKnight contends that a key premise underlying Caballes
    and Esparza — that a dog sniff reveals only contraband — is not
    2 In contrast, a government official’s walking a drug-detecting dog
    around a residence would implicate Fourth Amendment
    protections. See Florida v. Jardines, 569 U.S. ___, ___, 
    133 S. Ct. 1409
    , 1417-18 (2013) (house); United States v. Whitaker, 
    820 F.3d 849
    , 853-54 (7th Cir. 2016) (apartment). The difference is
    attributable in large part to the different expectations of privacy
    associated with a home and a car. See Jardines, 569 U.S. at ___,
    133 S. Ct. at 1414 (“[W]hen it comes to the Fourth Amendment, the
    home is the first among equals. At the Amendment’s ‘very core’
    stands ‘the right of a man to retreat into his own home and there be
    free from unreasonable governmental intrusion.’” (quoting
    Silverman v. United States, 
    365 U.S. 505
    , 511 (1961))); id. at ___
    
    n.1, 133 S. Ct. at 1419
    n.1 (“[P]eople’s expectations of privacy are
    much lower in their cars than in their homes.”) (Kagan, J.,
    concurring).
    6
    true in this case. An alert from Kilo, he argues, is not so definitive:
    it may reveal that a person possesses something legal (an ounce or
    less of marijuana) or something illegal (illegal amounts of marijuana
    or another controlled substance).
    ¶ 17   In neither Mason nor Esparza did the court address the effect
    of Amendment 64, which changed the landscape upon which issues
    of the type raised here are decided. For while possession of
    marijuana by anyone in any amount remains a crime under federal
    law, see 21 U.S.C. § 844(a) (2012), this is no longer the case under
    state law. Because Amendment 64 legalized possession for
    personal use of one ounce or less of marijuana by persons twenty-
    one years of age or older in Colorado, it is no longer accurate to say,
    at least as a matter of state law, that an alert by a dog which can
    detect marijuana (but not specific amounts) can reveal only the
    presence of “contraband.”3 A dog sniff could result in an alert with
    respect to something for which, under Colorado law, a person has a
    legitimate expectation of privacy, i.e., the possession of one ounce
    or less of marijuana for personal use.
    3No question has been raised in this case about whether
    Amendment 64 is preempted by federal law.
    7
    ¶ 18   Because a dog sniff of a vehicle could infringe upon a
    legitimate expectation of privacy solely under state law, that dog
    sniff should now be considered a “search” for purposes of article II
    section 7 of the state constitution where the occupants are
    twenty-one years or older. Cf. Kyllo v. United States, 
    533 U.S. 27
    ,
    34-40 (2001) (the use of a thermal imaging device to detect the
    growth of marijuana in a home was a “search” under the Fourth
    Amendment because the device was capable of detecting lawful
    activity); see Curious Theatre Co. v. Colo. Dep’t of Pub. Health &
    Env’t, 
    220 P.3d 544
    , 551 (Colo. 2009) (noting that local
    circumstances may justify applying a provision in the state
    constitution differently than a parallel provision in the Federal
    Constitution); People v. Parks, 
    2015 COA 158
    , ¶ 21 n.3 (noting
    instances where it was “decided that [a] governmental intrusion
    constituted a search under the State Constitution even though it
    did not constitute a search under the Federal Fourth
    Amendment”).4
    4 It would still not be considered a “search” under the Fourth
    Amendment, though. No one could contend, for instance, that a
    federal agent’s use of dog to sniff a car for the presence of any
    amount of marijuana would constitute a “search” under the Federal
    8
    C. What Level of Justification Was Required for the Search?
    ¶ 19   Prior to Esparza, the supreme court had indicated that,
    because of its minimally intrusive nature, a warrantless “search”
    effected by a dog sniff had to be supported by “a reasonable
    articulable suspicion that the item sniffed contains evidence of a
    crime.” People v. Reyes, 
    956 P.2d 1254
    , 1256 n.1 (Colo. 1998),
    abrogated by Esparza, 
    2012 CO 22
    ; see also People v. Boylan, 
    854 P.2d 807
    , 811 (Colo. 1993) (“[A] dog-sniff search need be justified
    not by probable cause sufficient to obtain a search warrant, but
    instead by reasonable suspicion, similar to that required to stop
    and frisk a person suspected of involvement in imminent criminal
    activity.”), abrogated by Esparza, 
    2012 CO 22
    ; People v. Unruh, 
    713 P.2d 370
    , 379 (Colo. 1986) (“[T]he balance between governmental
    and individual interests in this case can best be struck by requiring
    only reasonable suspicion as a prerequisite for the sniff search.”),
    abrogated by Esparza, 
    2012 CO 22
    .
    ¶ 20   Based on this reasoning, we conclude that “reasonable
    suspicion” is the state constitutional standard which applies to
    Constitution. See Illinois v. Caballes, 
    543 U.S. 405
    , 409 (2005).
    And Fourth Amendment protections do not change simply because
    the actor using a drug-detecting dog changes.
    9
    searches effected by dog sniffs of the exterior of a vehicle. Thus, in
    determining whether the police could subject McKnight’s truck to a
    dog sniff, the question is whether, prior to the dog sniff, they had
    grounds to reasonably suspect that evidence of illegal activity would
    be found in the truck.
    ¶ 21      The reasonable suspicion standard requires “considerably less
    than proof of wrongdoing by a preponderance of the evidence and is
    less demanding even than the ‘fair probability’ standard for
    probable cause.” People v. Polander, 
    41 P.3d 698
    , 703 (Colo. 2001)
    (quoting Alabama v. White, 
    496 U.S. 325
    , 330 (1990)). It is satisfied
    if “‘the police have specific and articulable facts, greater than a
    mere hunch, to support’ their belief that the person to be stopped is
    or may have been involved in criminal activity.” People v. Huynh,
    
    98 P.3d 907
    , 912 (Colo. App. 2004) (quoting 
    Boylan, 854 P.2d at 812
    ).
    ¶ 22      “In considering whether reasonable suspicion exists, the court
    looks at the totality of the circumstances, the specific and
    articulable facts known to the officer at the time of the encounter,
    and the rational inferences to be drawn from those facts.” People v.
    Garcia, 
    251 P.3d 1152
    , 1158 (Colo. App. 2010).
    10
    ¶ 23   Here, the pertinent circumstances known to the police before
    the dog was called upon to sniff McKnight’s truck were that (1)
    McKnight had sat parked for fifteen minutes outside a house in
    which illegal drugs had been found seven weeks before and (2)
    McKnight had a passenger in the truck who had used
    methamphetamine “at some point in the past.” Those
    circumstances did not raise a reasonable suspicion that evidence of
    illegal activity would be found in McKnight’s truck. The officer
    observed no one approach the truck from the house or approach
    the house from the truck. The officer had no objective basis, then,
    for suspecting that the truck’s occupants had taken drugs into the
    truck from the house or from anywhere else for that matter.
    ¶ 24   Because, in our view, the police lacked the requisite
    reasonable suspicion to subject McKnight’s truck to a dog sniff, the
    dog sniff was invalid, and the methamphetamine recovered as a
    result thereof should have been suppressed. The People do not
    contend, and we cannot conclude, that “the evidence properly
    received against [McKnight was] so overwhelming that the
    constitutional violation was harmless beyond a reasonable doubt.”
    11
    Bartley v. People, 
    817 P.2d 1029
    , 1034 (Colo. 1991). We must
    reverse. See 
    id. III. Conclusion
    ¶ 25   The judgment of conviction is reversed, and the case is
    remanded for further proceedings consistent with the views
    expressed in this opinion.
    JUDGE BERGER specially concurs.
    JUDGE J. JONES specially concurs.
    12
    JUDGE BERGER, specially concurring.
    ¶ 26   I agree with the majority’s holding that there was no
    reasonable suspicion supporting the dog sniff and that reasonable
    suspicion was required because the dog was trained to alert both to
    contraband and non-contraband.
    ¶ 27   I write separately for two reasons. First, while I do not think it
    is necessary to reach the probable cause determination — the issue
    upon which Judge Jones would decide this case — I agree with
    Judge Jones’ conclusion that probable cause was absent (although
    it is a very close question).
    ¶ 28   Second, I think it is useful to explain how a person may have
    an enforceable expectation of privacy under state law while federal
    law provides no such reasonable expectation.
    ¶ 29   The people of Colorado spoke clearly when they adopted
    Amendment 64. It is the duty of Colorado courts to give effect to
    that enactment. In re Great Outdoors Colo. Tr. Fund, 
    913 P.2d 533
    ,
    538 (Colo. 1996). The Attorney General does not contend that
    Amendment 64 is displaced by the Supremacy Clause of the Federal
    Constitution. Under these circumstances, it is incumbent on us to
    apply Amendment 64. Doing so creates a dichotomy between the
    13
    reasonable expectations of privacy under state and federal law
    because of the different laws enforced by state and federal law
    enforcement officers.
    ¶ 30   The “general rule” is that state law does not preclude state and
    local police from enforcing federal law. See, e.g., Miller v. United
    States, 
    357 U.S. 301
    , 305 (1958); Johnson v. United States, 
    333 U.S. 10
    , 15 n.5 (1948); Gonzales v. City of Peoria, 
    722 F.2d 468
    ,
    474 (9th Cir. 1983), overruled on other grounds by Hodgers-Durgin v.
    de la Vina, 
    199 F.3d 1037
    (9th Cir. 1999). However, while state law
    generally allows state and local law enforcement officers to enforce
    federal law, it need not do so. “It has long been held that power
    may be conferred upon a state officer, as such, to execute a duty
    imposed under an act of Congress, and the officer may execute the
    same, unless its execution is prohibited by the Constitution or
    legislation of the state.” Dallemagne v. Moisan, 
    197 U.S. 169
    , 174
    (1905).
    ¶ 31   Because Amendment 64 legalized possession of up to one
    ounce of marijuana for personal use by persons twenty-one years of
    age or older, it also “curtail[ed] police authority to enforce the
    Federal prohibition of possession of [up to one ounce] of
    14
    marijuana.” Commonwealth v. Craan, 
    13 N.E.3d 569
    , 578 (Mass.
    2014). Part of Amendment 64’s stated purpose was to increase “the
    efficient use of law enforcement resources” and “individual
    freedom.” Colo. Const. art. XVIII, § 16(1)(a). Allowing state and
    local officers to continue to enforce the federal prohibition would
    directly contravene this purpose. We must give effect to the voters’
    intent, Bruce v. City of Colorado Springs, 
    129 P.3d 988
    , 992 (Colo.
    2006), and we will not adopt an interpretation that contravenes the
    purpose of Amendment 64.
    ¶ 32   Thus, while a person twenty-one years of age or older in
    possession of less than an ounce of marijuana does not have a
    reasonable expectation of privacy under federal law with respect to
    law enforcement activities of federal officers, see Illinois v. Caballes,
    
    543 U.S. 405
    , 408-09 (2005), he or she does have a reasonable
    expectation of privacy under state law with respect to law
    enforcement activities of state officers.
    15
    JUDGE J. JONES, specially concurring.
    ¶ 33   I concur in the result reached by the majority. But I do so
    because it seems to me that the police officers lacked probable
    cause to search McKnight’s truck.
    ¶ 34   Courts have recognized that an alert from a dog trained to
    detect several substances, including marijuana, by itself may
    amount to probable cause justifying a search of a vehicle. Florida v.
    Harris, 
    568 U.S. 237
    , 246-47 (2013); People v. Esparza, 
    2012 CO 22
    , ¶ 12. But is that still true for purposes of article II, section 7 of
    the Colorado Constitution, given that state law now generally allows
    anyone who is at least twenty-one years old to possess small
    amounts of marijuana for personal use? I consider that question,
    which our supreme court did not address directly in People v.
    Zuniga, 
    2016 CO 52
    , and People v. Cox, 
    2017 CO 8
    , and conclude
    that such a dog’s alert alone no longer supplies probable cause
    where the occupants of the vehicle are twenty-one years or older
    and the officer conducting the search is not a federal officer.
    ¶ 35   In this case, a dog’s alert was the only circumstance of any
    real weight giving rise to the police officers’ decision to search
    McKnight’s truck. Therefore, I also conclude that the district court
    16
    erroneously denied McKnight’s motion to suppress the evidence
    found during that search. And because that error was not
    harmless beyond a reasonable doubt, I agree with the majority that
    we must reverse the district court’s judgment of conviction and
    remand the case for a new trial.
    I. Was Kilo’s Sniff a Search?
    ¶ 36   As the majority points out, the United States Supreme Court,
    in Illinois v. Caballes, 
    543 U.S. 405
    , 408-10 (2005), held that a
    drug-detection dog’s sniff of a vehicle is not a search under the
    Fourth Amendment, and the Colorado Supreme Court, in Esparza,
    ¶ 11, held that such a sniff is not a search under our state
    constitution.
    ¶ 37   McKnight contends that a key premise underlying Caballes
    and Esparza — that a dog sniff reveals only contraband — is not
    true in this case. An alert from Kilo, he argues, is not so definitive:
    it may reveal that a person possesses something legal (an ounce or
    less of marijuana) or something illegal (illegal amounts of marijuana
    or another controlled substance). But I need not decide whether
    Kilo’s sniff constituted a search because, even if it did not, the
    officers lacked probable cause to search McKnight’s truck.
    17
    II. Did Kilo’s Alert, By Itself, Create Probable Cause?
    ¶ 38   The Federal and State Constitutions give people the right to be
    free from unreasonable searches and seizures. U.S. Const. amend.
    IV; Colo. Const. art. II, § 7; Zuniga, ¶ 14. A warrantless search is
    presumptively unreasonable, violating the Fourth Amendment
    unless it falls under an exception to the warrant requirement.
    People v. Vaughn, 
    2014 CO 71
    , ¶ 14. The automobile exception
    allows police officers to search an automobile without a warrant if
    they have probable cause to believe that it contains evidence of a
    crime. Zuniga, ¶ 14.
    ¶ 39   “A police officer has probable cause to conduct a search when
    ‘the facts available to [the officer] would warrant a [person] of
    reasonable caution in the belief’ that contraband or evidence of a
    crime is present.” 
    Harris, 568 U.S. at 243
    (second alteration in
    original) (quoting Texas v. Brown, 
    460 U.S. 730
    , 742 (1983)
    (plurality opinion)). “[T]he information necessary to support a
    finding of probable cause need not rise to the level of certainty.”
    Mendez v. People, 
    986 P.2d 275
    , 280 (Colo. 1999). In the end,
    “probable cause is a commonsense concept that requires judges to
    consider the totality of the circumstances to determine ‘whether a
    18
    fair probability exists that a search of a particular place will reveal
    contraband or evidence of a crime.’” Zuniga, ¶ 16 (quoting 
    Mendez, 986 P.2d at 280
    ).
    ¶ 40   In Zuniga, the Colorado Supreme Court applied the probable
    cause standard under circumstances similar to those in this case.
    A trooper searched the defendant’s vehicle after a drug-detection
    dog — trained to detect marijuana and other controlled substances
    — alerted to the vehicle. 
    Id. at ¶
    6. Even though possessing
    marijuana does not violate Colorado law under some
    circumstances, the court concluded that the dog’s alert “suggested
    that illegal drugs were present in the vehicle” and “contribut[ed] to
    the existence of probable cause.” 
    Id. at ¶
    29. And the court
    ultimately concluded that the trooper had probable cause to search
    the vehicle based on the dog’s alert, the two passengers’
    “remarkably disparate accounts” of why they were in Colorado, the
    passengers’ “extreme nervousness,” and the heavy odor of raw
    marijuana. 
    Id. at ¶
    ¶ 26-30.
    ¶ 41   More recently, in Cox, the court reiterated that a dog’s alert is
    part of the “totality of the circumstances” that the district court
    must consider, and similarly concluded that four facts combined to
    19
    establish probable cause to search the defendant’s vehicle. Cox,
    ¶¶ 15, 17. These four facts were (1) an alert from a dog trained to
    detect marijuana and other controlled substances; (2) the
    defendant’s unusual nervousness; (3) inconsistencies in the
    defendant’s description of his travels; and (4) the presence of two
    cell phones in the defendant’s vehicle. 
    Id. at ¶
    ¶ 15-22.
    ¶ 42   Before Zuniga, both the United States Supreme Court and the
    Colorado Supreme Court had recognized that an alert from a
    reliable drug-detection dog by itself might establish probable cause.
    See 
    Harris, 568 U.S. at 246-47
    ; Esparza, ¶ 12. In both Zuniga and
    Cox, however, the supreme court expressly did not consider directly
    whether, given the recent changes to marijuana’s status in
    Colorado, an alert from a dog trained to detect marijuana and other
    controlled substances by itself establishes probable cause to search
    a vehicle. Cox, ¶ 22 n.5; Zuniga, ¶ 30 n.6. I conclude that, for
    purposes of the Colorado Constitution, it does not.
    ¶ 43   Zuniga and Cox leave no doubt that Kilo’s alert supplied some
    level of suspicion. “A possible innocent explanation or lawful
    alternative may add a level of ambiguity to a fact’s probative value
    in a probable cause determination, but it does not destroy the fact’s
    20
    usefulness outright and require it to be disregarded.” Zuniga, ¶ 20.
    Because an alert from Kilo might be the product of legal or illegal
    conduct, his alert added to the probability that a search would
    reveal evidence of a crime. See 
    id. at ¶
    29; see also Cox, ¶ 17.
    ¶ 44   But although Kilo’s alert increased the likelihood that
    McKnight’s truck contained evidence of a crime, a significant level
    of ambiguity arose from the combination of Kilo’s training and
    Colorado’s marijuana laws. At bottom, Kilo’s alert communicated
    only that he detected either a legal substance or an illegal
    substance. That information would not, by itself, warrant a person
    of reasonable caution to believe that McKnight’s truck contained
    contraband or evidence of a crime. See 
    Harris, 568 U.S. at 242-44
    ;
    State v. Shabeeb, 
    194 Wash. App. 1032
    , ¶ 20, 
    2016 WL 3264421
    , at
    *3 (Wash. Ct. App. 2016) (unpublished opinion) (“The State
    concedes and we agree that since the decriminalization of
    marijuana, a K–9 alert standing alone no longer establishes
    probable cause when the K–9 was trained to alert on multiple
    narcotics, one of which is marijuana.”).
    ¶ 45   I am not persuaded by the People’s reliance on Mendez, in
    which the supreme court determined that officers had probable
    21
    cause to search the defendant’s motel room after smelling burning
    marijuana emanating from the 
    room. 986 P.2d at 280
    . At the time,
    medicinal use of marijuana provided an affirmative defense to a
    possession charge under Colorado law. 
    Id. at 281
    n.4. Even so, the
    court rejected the defendant’s argument that the smell of burning
    marijuana did not create probable cause because the officers could
    not determine whether the room’s occupant was using marijuana
    illegally or medicinally. 
    Id. In my
    view, legalizing marijuana (to
    some degree) creates far more ambiguity as to whether possessing it
    is probative of criminal conduct than does simply providing an
    affirmative defense for its medicinal use.
    ¶ 46   For similar reasons, the cases from other states on which the
    People rely carry little force. State v. Smalley, 
    225 P.3d 844
    , 847-48
    (Or. Ct. App. 2010), was decided when possessing less than an
    ounce of marijuana in Oregon, though not a criminal offense,
    remained a “violation.” See also Bowling v. State, 
    134 A.3d 388
    ,
    394-98 (Md. Ct. Spec. App. 2016) (because possession of small
    amounts of marijuana remains a civil violation, all marijuana is
    contraband). And People v. Strasburg, 
    56 Cal. Rptr. 3d 306
    , 309
    (Cal. Ct. App. 2007), was decided when California law permitted a
    22
    “qualified patient” to possess up to eight ounces of marijuana.
    Neither Smalley nor Strasburg addressed the legal landscape that
    we face in Colorado, where people who are at least twenty-one years
    old may legally possess up to an ounce of marijuana for personal
    use.
    ¶ 47     I recognize, as the People point out, that possessing any
    amount of marijuana remains illegal under federal law. Coats v.
    Dish Network, LLC, 
    2015 CO 44
    , ¶ 19. Nevertheless, I believe that,
    at least for purposes of determining whether there is probable cause
    under the Colorado Constitution, Zuniga makes clear that
    Colorado’s marijuana laws have added a level of ambiguity to the
    probative value of evidence suggesting that a person possesses
    marijuana. See Zuniga, ¶¶ 20, 23. So I could not, consistent with
    Zuniga, simply conclude that marijuana’s federal status clarifies the
    ambiguity created by Kilo’s readiness to alert if he detects
    marijuana.
    ¶ 48     For the foregoing reasons, I conclude that a drug-detection
    dog’s alert does not alone give a Colorado state law enforcement
    23
    officer probable cause to conduct a search of a vehicle where the
    occupants are at least twenty-one years old.1
    III. Did the Totality of the Circumstances
    Establish Probable Cause for the Search?
    ¶ 49   Though Kilo’s alert did not alone give probable cause for the
    search of McKnight’s truck, it was of course indicative of possible
    criminal activity. 
    Id. at ¶
    29. So the question remains whether the
    totality of the circumstances, including Kilo’s alert, established
    probable cause for the search. See 
    id. at ¶
    16.
    ¶ 50   The People rely on only two additional facts to support a
    finding of probable cause — that McKnight parked outside a house
    in which drugs had been found and that Officer Gonzales knew that
    McKnight’s passenger had used methamphetamine “at some point
    in the past.” A close look shows that these facts are too vague and
    attenuated to have suggested that McKnight’s truck contained
    evidence of criminal activity.
    1 The result would be different if the dog was not trained to detect
    marijuana, or if the vehicle’s occupants were not at least twenty-one
    years old. And I do not opine as to whether the change in
    Colorado’s marijuana laws affects the Fourth Amendment analysis;
    like the majority, my analysis is limited to the Colorado
    Constitution.
    24
    ¶ 51   That illegal drugs (the motions hearing transcript is silent as
    to what kind or how much) had been found in the house more than
    seven weeks earlier says little, if anything, about whether it
    contained illegal drugs when McKnight parked nearby. Moreover,
    Officer Gonzales did not say that anyone in McKnight’s truck
    approached the house or that anyone from inside the house
    approached McKnight’s truck. McKnight’s mere parking by a house
    that had once contained illegal drugs simply did not suggest that
    McKnight’s truck had illegal drugs in it. See People v. Revoal, 
    2012 CO 8
    , ¶ 16 (“standing alone, a history of past criminal activity in a
    locality does not justify suspension of the constitutional rights of
    everyone, or anyone, who may subsequently be in that locality”).
    ¶ 52   Similarly unsuspicious is that McKnight’s passenger had used
    methamphetamine sometime in the past. For all we know, the
    passenger may have been clean for years before Officer Gonzales
    saw her in McKnight’s truck. In any case, the information that
    Officer Gonzales conveyed about the passenger’s past drug use did
    not suggest that the passenger or McKnight had illegal drugs when
    Officer Gonzales stopped them. Cf. United States v. Kennedy, 
    427 F.3d 1136
    , 1142 (8th Cir. 2005) (“information of an unknown and
    25
    undetermined vintage relaying the location of mobile, easily
    concealed, readily consumable, and highly incriminating narcotics
    could quickly go stale in the absence of information indicating an
    ongoing and continuing narcotics operation”).
    ¶ 53   I am aware that I must consider these facts together with
    Kilo’s alert in assessing whether there was probable cause. Cox,
    ¶ 14. But after doing so I am simply not convinced that there was
    probable cause. In my view, the additional facts do nothing to clear
    up the ambiguity arising from Kilo’s alert.
    ¶ 54   In sum, I conclude that the information available to the
    officers who searched McKnight’s truck did not give them probable
    cause to believe that it contained evidence of a crime. For that
    reason, the district court erred when it denied McKnight’s motion to
    suppress the evidence obtained from the search. See 
    id. The People
    do not contend, and I cannot conclude, that “the evidence
    properly received against [McKnight was] so overwhelming that the
    constitutional violation was harmless beyond a reasonable doubt.”
    Bartley v. People, 
    817 P.2d 1029
    , 1034 (Colo. 1991). Therefore, I
    agree with the majority that we must reverse. See 
    id. 26