United States v. Gaines , 918 F.3d 793 ( 2019 )


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  •                                                                        FILED
    United States Court of Appeals
    PUBLISH                            Tenth Circuit
    UNITED STATES COURT OF APPEALS                   March 12, 2019
    Elisabeth A. Shumaker
    FOR THE TENTH CIRCUIT                        Clerk of Court
    _________________________________
    UNITED STATES OF AMERICA,
    Plaintiff - Appellee,
    v.                                                 No. 17-3270
    DESMOND S. GAINES,
    Defendant - Appellant.
    _________________________________
    Appeal from the United States District Court
    for the District of Kansas
    (D.C. No. 2:15-CR-20078-JAR-1)
    _________________________________
    Paige A. Nichols, Assistant Federal Public Defender (Melody Brannon,
    Federal Public Defender, with her on the briefs), Kansas Federal Public
    Defender, Topeka, Kansas, for the Defendant-Appellant.
    Stephen A. McAllister, United States Attorney (Carrie N. Capwell,
    Assistant United States Attorney, with him on the brief), Office of the
    United States Attorney, Kansas City, Kansas, for the Plaintiff-Appellee.
    _________________________________
    Before TYMKOVICH, Chief Judge, BACHARACH, and McHUGH,
    Circuit Judges.
    _________________________________
    BACHARACH, Circuit Judge.
    _________________________________
    This appeal stems from a search, which took place after the police
    spoke with the defendant, Mr. Desmond Gaines. After a brief exchange,
    Mr. Gaines fled but was soon captured. The police then found cocaine,
    marijuana, PCP, drug paraphernalia, over $640, and a handgun. Mr. Gaines
    unsuccessfully moved to suppress this evidence. He now appeals, 1 and we
    focus on two issues:
    1.    The existence of a seizure. Two uniformed police officers
    approached Mr. Gaines with flashing roof lights and confronted
    him about a report that he was selling PCP. Did this
    confrontation entail a seizure? The answer turns on whether a
    reasonable person would have felt free to leave or terminate the
    encounter. We answer “no” and characterize the encounter as a
    seizure.
    2.    The attenuation of a possible Fourth Amendment violation.
    After effecting a seizure, the police allegedly acquired probable
    cause and learned of an outstanding arrest warrant. Did the
    development of probable cause or the subsequent discovery of
    the arrest warrant attenuate the connection between the seizure
    and the evidence? We answer “no,” so introduction of the
    evidence can’t be supported by attenuation of a Fourth
    Amendment violation.
    Given our conclusions on these two issues, we vacate the denial of Mr.
    Gaines’s motion to suppress.
    I.   The Kansas City police approach Mr. Gaines in marked police
    cars and question him about a report that he is selling PCP.
    One morning, the police in Kansas City, Kansas, received a 911 call
    reporting that a man dressed in red had just sold drugs in a parking lot.
    1
    After a trial, Mr. Gaines was convicted of (1) possessing cocaine
    base, PCP, and marijuana with intent to distribute, (2) possessing a firearm
    in furtherance of a drug-trafficking crime, and (3) possessing a firearm
    after a felony conviction. But the appeal involves only the ruling on Mr.
    Gaines’s motion to suppress.
    2
    Based on this information, police officers Carl Rowland and Shenee Davis
    responded.
    The police officers pulled into the parking lot in two separate police
    cars and turned on their roof lights. 2 They parked behind a car in which a
    man in red clothing (Mr. Gaines) was seated. Officer Rowland gestured for
    Mr. Gaines to get out of the car. He did, and Officer Rowland confronted
    Mr. Gaines with the report that he was selling drugs. The police officers
    soon observed an open container of alcohol and smelled PCP. When they
    said they were going to detain Mr. Gaines, he grabbed a pouch from his car
    and fled. The police caught Mr. Gaines and discovered the evidence that
    underlies this appeal.
    II.   Was there a seizure?
    The threshold issue is applicability of the Fourth Amendment. This
    amendment applies if the police had seized Mr. Gaines; it doesn’t if the
    encounter had been consensual. United States v. Reeves, 
    524 F.3d 1161
    ,
    1166 (10th Cir. 2008). The district court characterized the entire encounter
    as consensual. To determine whether the encounter was consensual or
    constituted a seizure, we apply a dual standard of review, using the clear-
    error standard for the district court’s findings of historical fact and de
    2
    In videos of the stop, it is hard to tell whether Officer Davis’s roof
    lights were on. But Officer Davis testified in the suppression hearing that
    she had activated her roof lights.
    3
    novo review for the court’s legal conclusions. United States v. Roberson,
    
    864 F.3d 1118
    , 1121 (10th Cir. 2017). 3
    The existence of a seizure involves a matter of law. See United States
    v. Salazar, 
    609 F.3d 1059
    , 1064 (10th Cir. 2010) (stating that determining
    “when the seizure occurred . . . is a legal [question]”). On this matter of
    law, we consider whether Mr. Gaines yielded to a police officer’s show of
    authority. California v. Hodari D., 
    499 U.S. 621
    , 626–27 (1991). To
    answer this question of law, we apply an objective test, considering
    whether a reasonable person would have felt free to leave or terminate the
    encounter. Florida v. Bostick, 
    501 U.S. 429
    , 436 (1991). We apply this
    objective test to the historical facts, which are largely undisputed. Even if
    a reasonable person would not have felt free to leave, a seizure would
    3
    When considering whether the district court clearly erred, we have
    often said that we view the evidence in the light most favorable to the
    district court’s ruling or to the prevailing party. See United States v.
    Salazar, 
    609 F.3d 1059
    , 1063 (10th Cir. 2010) (favorable to the prevailing
    party); United States v. Valenzuela, 
    365 F.3d 892
    , 896 (10th Cir. 2004)
    (favorable to the district court’s determination). Mr. Gaines challenges
    these statements, urging us to jettison our existing approach. But one panel
    of this court can’t overrule another panel. United States v. Doe, 
    865 F.3d 1295
    , 1298 (10th Cir. 2017). So we continue to view the evidence in the
    light most favorable to the district court’s ruling or to the prevailing party.
    E.g., United States v. Cone, 
    868 F.3d 1150
    , 1152 (10th Cir. 2017).
    4
    occur only if the suspect yielded to a police officer’s show of authority.
    Hodari D., 
    499 U.S. at
    626–27.
    So let’s consider how a reasonable person would have felt, facing
    the same circumstances that Mr. Gaines confronted. The encounter began
    with Mr. Gaines sitting in his car in a parking lot. Two uniformed police
    officers arrived in marked police cars, both flashing their roof lights.
    Would a reasonable person have felt free to leave? Perhaps. But the
    flashing roof lights, 4 two marked police cars, and two uniformed officers 5
    would undoubtedly have cast at least some doubt on a reasonable person’s
    belief in his or her freedom to leave.
    This doubt would likely have intensified in Kansas (where Mr.
    Gaines was stopped) because of Kansas’s traffic laws. See Berkemer v.
    McCarty, 
    468 U.S. 420
    , 436–37 (1984) (considering the laws of most
    states, which criminalize the failure to heed a police officer’s signal to
    4
    See 4 Wayne R. LaFave, Search & Seizure: A Treatise on the Fourth
    Amendment § 9.4(a), at 598–99 (5th ed. 2012) (stating that the “use of
    flashing lights as a show of authority . . . will likely convert the event into
    a Fourth Amendment seizure”).
    5
    See United States v. Williams, 
    615 F.3d 657
    , 660 (6th Cir. 2010)
    (“Williams was seized: a reasonable person would not have felt free to
    leave upon being approached by two uniformed officers in a marked car,
    singled out of a group, and immediately accused of a crime.”); see also
    United States v. Lopez, 
    443 F.3d 1280
    , 1284 (10th Cir. 2006) (stating that
    the presence of uniformed officers bears on whether a police encounter
    constitutes a seizure).
    5
    stop, as informative on whether the defendant reasonably believed that he
    wasn’t free to leave). Under Kansas law, motorists must stop whenever a
    police officer flashes his or her emergency lights. 
    Kan. Stat. Ann. § 8
    -
    1568(a)(1), (d).
    The district court minimized the impact of the flashing roof lights,
    crediting testimony by the police officers that they had activated their
    lights only because their cars were blocking a lane of traffic. But the
    officers’ subjective intent had little bearing on whether a reasonable
    person would have thought that he or she could leave. See Brendlin v.
    California, 
    551 U.S. 249
    , 260–61 (2007) (“The intent that counts under the
    Fourth Amendment” is the intent conveyed to the suspect, and the court
    does not consider the officers’ “subjective intent when determining who is
    seized.”); see also United States v. Mendenhall, 
    446 U.S. 544
    , 554 n.6
    (1980) (concluding that a law-enforcement agent’s “subjective intention
    . . . to detain the respondent, had she attempted to leave, is irrelevant
    except insofar as that may have been conveyed to the respondent”).
    But let’s assume that a reasonable person would have felt free to
    drive away at this point. 6 One of the police officers then exited his car and
    6
    If the police officers had followed and reactivated their roof lights,
    Kansas law would have required the person to pull over. See 
    Kan. Stat. Ann. § 8-1568
    (a)(1), (d); State v. Morris, 
    72 P.3d 570
    , 577 (Kan. 2003).
    6
    gestured for Mr. Gaines to get out of the car. Here is what our reasonable
    person would have seen:
    At a minimum, the police officer’s gesture would have cast further doubt
    on a reasonable person’s belief that he or she was free to drive away. See
    Santos v. Frederick Cty. Bd. of Comm’rs, 
    725 F.3d 451
    , 462 (4th Cir.
    2013) (holding that two deputy sheriffs’ gestures to stay seated constituted
    a seizure).
    But let’s assume that a reasonable person would still have felt free to
    leave. As Mr. Gaines exited the car, one police officer stood just a few feet
    away and said that they had come because of a report that Mr. Gaines was
    “up here selling some dope.” The police officer then asked Mr. Gaines
    7
    whether he had been selling “wet” (street-language for PCP). Meanwhile,
    another uniformed police officer circled the car, looking inside. 7
    Would a reasonable person have felt free to leave? At a minimum, the
    accusatory question would have added to the reasonable person’s doubt
    about his or her freedom to return to the car and drive away. See United
    States v. Glass, 
    128 F.3d 1398
    , 1407 (10th Cir. 1997) (stating that
    “particularized focus” on an individual “is certainly a factor” to consider
    when determining whether a seizure took place). 8
    7
    At a hearing, a prosecutor told the district court that the police
    officers had “encircle[d] the location” because the situation was
    “heightened.” R., vol. I at 372.
    8
    We have sometimes cautioned that the mere existence of
    incriminating questions is not relevant to the existence of a seizure. See
    United States v. Little, 
    18 F.3d 1499
    , 1506 (10th Cir. 1994) (en banc);
    United States v. Ringold, 
    335 F.3d 1168
    , 1173 (10th Cir. 2003). We do not
    question these cautionary statements. But here the police officer didn’t just
    ask incriminating questions; he began by explaining that he had come (with
    roof lights flashing) because of a report that this person was selling drugs
    8
    These were the five circumstances that confronted Mr. Gaines:
    1.    He was sitting in his car when two marked police cars
    approached and stopped right behind him with their roof lights
    flashing.
    2.    Both police officers were uniformed.
    3.    One police officer gestured for Mr. Gaines to get out of his car.
    4.    Mr. Gaines exited his car, and one of the police officers said
    that they had come based on a report that he was selling PCP in
    the parking lot.
    5.    While one police officer told Mr. Gaines that someone had
    accused him of selling PCP, the other police officer circled Mr.
    Gaines’s car and looked inside.
    in the parking lot. See United States v. Smith, 
    794 F.3d 681
    , 686 (7th Cir.
    2015) (“The line between a consensual conversation and a seizure is
    crossed when police convey to an individual that he or she is suspected of
    a crime.”).
    9
    Viewing these circumstances as a whole, we conclude that (1) the police
    officers showed their authority and (2) no reasonable person would have
    felt free to leave.
    Still, the encounter would constitute a seizure only if Mr. Gaines had
    yielded to the show of authority. He ultimately fled, so the government
    denies that Mr. Gaines yielded. We disagree. One officer gestured for Mr.
    Gaines to get out of his car, and he did. When Mr. Gaines was asked
    questions, he responded. See United States v. Camacho, 
    661 F.3d 718
    , 726
    (1st Cir. 2011) (stating that a suspect “submitted” to a police officer’s
    “show of authority by responding to his questions”). And when Mr. Gaines
    was asked for his identification, he opened his car trunk to look for his
    identification.
    Mr. Gaines then fled. But by that point, he had already yielded to the
    show of authority. We addressed a similar issue in United States v.
    Morgan, 
    936 F.2d 1561
     (10th Cir. 1991). There the defendant exited his
    car and fled after asking the officer: “What do you want?” Morgan, 
    936 F.2d at 1566
    . We considered this single question enough to conclude that
    the defendant had yielded to authority. 
    Id. at 1567
    . By comparison, Mr.
    Gaines had done more to yield: getting out of his car, answering the
    officer’s questions, and looking for his identification.
    We thus conclude that Mr. Gaines was seized.
    10
    III.   Even if the seizure itself had been improper, would the
    attenuation doctrine permit introduction of the subsequently
    discovered evidence?
    The government argues that even if the seizure had been improper, it
    would have had only an attenuated connection to the later discovery of
    evidence. This argument is based on the attenuation doctrine. Under this
    doctrine, a constitutional violation leading to the discovery of evidence
    does not require exclusion when only an attenuated connection exists
    between the constitutional violation and discovery of the evidence. Utah v.
    Strieff, 
    136 S. Ct. 2056
    , 2061 (2016).
    To invoke the attenuation doctrine, the government bears a “heavy
    burden.” United States v. Fox, 
    600 F.3d 1253
    , 1259 (10th Cir. 2010).
    Trying to satisfy this burden, the government alleges two attenuating
    circumstances:
    1.   An outstanding arrest warrant existed for Mr. Gaines prior to
    the encounter.
    2.   The police officers obtained probable cause to search the car
    based on the smell of PCP and observation of an open container
    of alcohol.
    The district court found attenuation based on the outstanding arrest
    warrant. The court didn’t address probable cause, but the government
    points to probable cause as an alternative basis to affirm the finding of
    attenuation. In our view, attenuation cannot be based on either the arrest
    warrant or the eventual development of probable cause.
    11
    A.    Arrest Warrant
    When the police officers searched the car, they did not know of any
    outstanding arrest warrants. But shortly after conducting the search and
    arresting Mr. Gaines, the police learned that he had an outstanding arrest
    warrant. Based on the discovery of the warrant, the district court found
    that the attenuation doctrine would allow introduction of the evidence even
    if the initial encounter had constituted an unlawful seizure. We disagree
    because (1) the execution of the arrest warrant might not have allowed a
    search of the car and (2) two of the attenuation doctrine’s three factors
    support exclusion.
    We again apply a dual standard of review, using the clear-error
    standard for findings of historical fact and de novo review for legal
    conclusions. Ornelas v. United States, 
    517 U.S. 690
    , 699 (1996).
    The arrest warrant might have led to an arrest, and arresting Mr.
    Gaines would have allowed the police to conduct a search incident to an
    arrest. Chimel v. California, 
    395 U.S. 752
    , 762–63 (1969). For a search
    incident to an arrest, the police could search Mr. Gaines’s person and
    places within his immediate control at the time of the search. See United
    States v. Edward, 
    632 F.3d 633
    , 643 (10th Cir. 2001); see also United
    States v. Knapp, No. 18-8031, slip op. at 12, ___ F.3d ___ (10th Cir. Mar. 5,
    2019) (to be published) (“We therefore join the Third Circuit in
    interpreting Gant as focusing attention on the arrestee’s ability to access
    12
    weapons or destroy evidence at the time of the search, rather than the time
    of the arrest, regardless of whether the search involved a vehicle.”).
    Here, the evidence at issue was in Mr. Gaines’s car. If the police had
    arrested Mr. Gaines based on the arrest warrant, he might or might not
    have been within reach of the car at the time of the search. If Mr. Gaines
    was not within reach, the police could not have searched the car incident to
    the arrest. See Arizona v. Gant, 
    556 U.S. 332
    , 343 (2009) (stating that the
    police can “search a vehicle incident to a recent occupant’s arrest only
    when the arrestee is unsecured and within reaching distance of the
    passenger compartment at the time of the search”).
    At oral argument, the government theorized for the first time that the
    police could have impounded the car and conducted an inventory search.
    Though the district court didn’t consider these theories, we can ordinarily
    consider alternative arguments to affirm if the record is adequately
    developed. United States v. Bagley, 
    877 F.3d 1151
    , 1154 (10th Cir. 2017).
    Here, however, the government did not present this contention until oral
    argument. We typically decline to consider an appellee’s contentions raised
    for the first time in oral argument. See Adamscheck v. Am. Family Mut. Ins.
    Co., 
    818 F.3d 576
    , 588 (10th Cir. 2016) (rejecting an appellee’s contention
    to affirm on an alternative ground because the contention was raised for
    the first time at oral argument).
    13
    Even if we were to consider the government’s new contention,
    however, we would reject it. To conduct an inventory search, the
    government had to prove that the police could lawfully impound Mr.
    Gaines’s car. See United States v. Sanders, 
    796 F.3d 1241
    , 1244 (10th Cir.
    2015) (“The government bears the burden of proving that its impoundment
    of a vehicle satisfies the fourth Amendment.”). To satisfy this burden, the
    government had to show that the police had standardized criteria justifying
    impoundment and a legitimate community-caretaking reason to impound
    the car. 
    Id. at 1248
    .
    Here the government presented no evidence of standardized criteria
    for impoundment. Even with such evidence, however, the police could
    impound the car only upon proof of a community-caretaking rationale. For
    example, impoundment might have been permissible if the car had
    obstructed traffic or imperiled public safety. South Dakota v. Opperman,
    
    428 U.S. 364
    , 368–69 (1976). But we lack any evidence that the car was
    illegally parked or imperiling public safety. 9
    But let’s generously assume that the police could have searched the
    car based on (1) discovery of the arrest warrant or (2) impoundment of the
    9
    After arresting Mr. Gaines, the police didn’t impound the car.
    Instead, the police gave the keys to Mr. Gaines’s acquaintance, who
    delivered the car to Mr. Gaines’s mother.
    14
    car. Even with this assumption, we could apply the attenuation doctrine
    only after considering three factors:
    1.    the “temporal proximity” between the Fourth Amendment
    violation and discovery of the evidence
    2.    the presence of “intervening circumstances”
    3.    the “purpose and flagrancy” of the officer’s wrongdoing
    Brown v. Illinois, 
    422 U.S. 590
    , 603–04 (1975). The first two factors favor
    suppression of the evidence; only the third arguably favors the
    government.
    The first factor (temporal proximity) supports Mr. Gaines because
    the evidence was discovered only minutes after the seizure. See Utah v.
    Strieff, 
    136 S. Ct. 2056
    , 2062 (2016).
    The third factor (the purpose and flagrancy of the police wrongdoing)
    supports the government. The police officers arguably should have known
    that the encounter constituted a seizure. But the district court found that
    the police had been negligent (at worst). This finding was reasonable
    because the issue of reasonable suspicion is close. (We discuss this issue
    below.) So if the search had been unlawful, the police would have been (at
    worst) negligent.
    We also consider the second factor (the presence of intervening
    circumstances between the allegedly unlawful stop and discovery of the
    evidence). This factor supports Mr. Gaines because the arrest warrant
    15
    wasn’t discovered until after the search. See United States v. Gaines, 
    668 F.3d 170
    , 175 (4th Cir. 2012) (concluding that when evidence is discovered
    prior to the defendant’s independent criminal act, this criminal act cannot
    serve as “an intervening event” to purge the taint of an unlawful police
    action); United States v. Beauchamp, 
    659 F.3d 560
    , 574 (6th Cir. 2011)
    (concluding that no intervening circumstances existed because the new
    ground for the search had arisen after discovery of the evidence); United
    States v. Camacho, 
    661 F.3d 718
    , 730–31 (1st Cir. 2011) (same).
    The government contends that if Mr. Gaines had not fled, the police
         would have learned of the arrest warrant before searching the
    car and
         might have impounded the car.
    For the sake of argument, we can assume that the government is right. But
    the attenuation doctrine addresses events as they actually occurred, not as
    they might have transpired. Thus, the arrest warrant and potential
    impoundment do not attenuate the connection between a possible Fourth
    Amendment violation and discovery of the evidence.
    B.    Probable Cause
    The government also insists that the development of probable cause
    would have triggered the attenuation doctrine. We reject this argument.
    According to the government, the police officers obtained probable
    cause when they smelled PCP and observed an open container of alcohol in
    16
    Mr. Gaines’s car. But even if probable cause existed, it would have flowed
    directly from the seizure. See Wong Sun v. United States, 
    371 U.S. 471
    ,
    487–88 (1963). So the discovery of evidence would still be traced directly
    to the possible Fourth Amendment violation. See 
    id.
     Given this direct
    causal connection, the eventual development of probable cause would not
    trigger the attenuation doctrine. 10
    IV.   Was the police’s suspicion reasonable?
    Even though Mr. Gaines was seized, the seizure would have been
    permissible if the police had a reasonable ground to suspect Mr. Gaines of
    a crime. See United States v. Cortez, 
    449 U.S. 411
    , 417–18 (1981). The
    district court didn’t address the reasonableness of the police’s suspicion.
    So our threshold decision is whether to decide this issue or remand for the
    district court to address this issue in the first instance.
    Mr. Gaines asks us to remand for the district court to decide the issue
    in the first instance. We grant this request. The inquiry on reasonable
    suspicion ordinarily entails a fact-intensive inquiry better suited to the
    10
    This argument might succeed in other cases when a suspect commits
    a new crime during an unlawful seizure. For example, if a suspect resists
    arrest during the seizure, the new crime of resisting arrest might arguably
    attenuate the link between the seizure and a subsequent search. See United
    States v. Bailey, 
    691 F.2d 1009
    , 1018 (11th Cir. 1982) (attenuation when
    the defendant resisted arrest during an unlawful stop because resisting
    arrest constituted a “new, distinct crime”). We need not address this issue
    because the government doesn’t allege the commission of a new, distinct
    crime after the search.
    17
    district court than to our court. See United States v. Esquivel-Rios, 
    725 F.3d 1231
    , 1238 (10th Cir. 2013) (Gorsuch, J.) (discussing the benefit of
    remanding so that the district court could decide reasonable suspicion in
    the first instance); United States v. Hauk, 
    412 F.3d 1179
    , 1186 (10th Cir.
    2005) (referring to reasonable suspicion as a “fact-intensive” issue). And
    here, the parties disagree on some potentially material aspects of the
    inquiry, such as
         whether the 911 caller implied that he or she had observed a
    drug sale and
         whether either police officer had known of past drug sales in
    the area where Mr. Gaines was located.
    The issue is also close. The police learned of Mr. Gaines through an
    anonymous tip, and the Supreme Court concluded in Florida v. J.L., 
    529 U.S. 266
     (2000) that an anonymous tip hadn’t supplied reasonable
    suspicion. J.L., 
    529 U.S. at 271
    . But the Supreme Court also reached the
    opposite conclusion in Navarette v. California, 
    572 U.S. 393
     (2000). There
    the Court relied partly on the use of the 911 system, the contemporaneous
    nature of the call with the reported crime, and the specificity of the
    information. Navarette, 572 U.S. at 398–403. These factors arguably apply
    here. But in J.L., the Court also suggested the importance of predictive
    information and corroboration, and both are arguably missing here. J.L.,
    
    529 U.S. at
    270–71.
    18
    Given the closeness of the issue and the district court’s superior
    resources for fact-finding, we grant Mr. Gaines’s request to remand for the
    district court to decide whether the police had reasonable suspicion.
    V.    Did Mr. Gaines abandon the black pouch?
    When Mr. Gaines fled, he threw a black pouch onto the roof of a
    building. The police later found the pouch, and it contained illegal drugs,
    cash, and drug paraphernalia. All of this evidence was introduced at the
    trial. Mr. Gaines alleges that the evidence should have been excluded, and
    the government contends that Mr. Gaines abandoned the pouch.
    The district court didn’t address the issue, and the record on
    abandonment is inadequately developed. We therefore can’t consider
    abandonment as an alternative ground for affirmance. See p. 13, above. 11
    VI.   Conclusion
    The police effected a seizure when two uniformed police officers
    pulled behind Mr. Gaines in marked police cars, using their roof lights and
    11
    Mr. Gaines argues that the government waived its abandonment
    argument by failing to raise it in district court. For this argument, Mr.
    Gaines relies on United States v. Hernandez, 
    847 F.3d 1257
    , 1262 (10th
    Cir. 2017), and United States v. Verner, 659 F. App’x 461, 466–68 (10th
    Cir. 2016) (unpublished). In these cases, however, the government was the
    appellant. Hernandez, 847 F.3d at 1260; Verner, 659 F. App’x at 462. And
    we ordinarily allow the government to present new arguments for
    affirmance when the district court record is adequately developed. See
    p. 13, above (citing United States v. Bagley, 
    877 F.3d 1151
    , 1154 (10th
    Cir. 2017)).
    19
    pointedly telling Mr. Gaines that they had come because of a report that he
    was selling drugs in the parking lot. After conducting the search, the police
    learned of an outstanding warrant and arguably obtained probable cause
    during their discussion with Mr. Gaines. But neither the arrest warrant nor
    the later existence of probable cause attenuate the causal connection
    between the seizure and discovery of the evidence. We thus vacate the
    denial of Mr. Gaines’s motion to suppress.
    An issue remains on the existence of reasonable suspicion. This issue
    is better suited for the district court to decide in the first instance. We thus
    remand for consideration of the issue involving reasonable suspicion. 12
    12
    On remand, the district court is also free to consider the
    government’s argument involving abandonment of the black pouch. The
    issue of abandonment is fact-intensive and better suited for the district
    court to decide on a fuller record. See, e.g., United States v. Driskill, No.
    98-6331, 
    1999 WL 730954
    , at *2 (10th Cir. Sept. 20, 1999) (unpublished)
    (“Whether a defendant ‘abandoned’ property in the Fourth Amendment
    sense is a fact-intensive determination which would ordinarily require an
    adequately developed record.”).
    20
    17-3270, United States v. Gaines
    TYMKOVICH, CJ., dissenting.
    I would affirm the district court because Officers Rowland and Davis had
    reasonable suspicion to perform a brief investigative stop. And Officer Rowland quickly
    gained probable cause to arrest Gaines based on the open container plainly visible inside
    Gaines’s vehicle. Although the majority thoroughly and persuasively analyzes the
    existence of a seizure and the applicability of the attenuation doctrine, I would not reach
    these two issues. I therefore dissent.
    I see no need to remand for the district court to determine reasonable suspicion,
    despite the district court not reaching the issue below. The government squarely
    presented the issue to the district court and developed a detailed record regarding the
    officers’ knowledge and observations. And based on this record, the officers had
    reasonable suspicion to detain Gaines briefly while they investigated possible criminal
    activity.
    We may affirm on an alternative ground when the facts in the record are
    sufficiently developed and clear. See United States v. Springer, 
    875 F.3d 968
    , 981 (10th
    Cir. 2017) (“[W]e are free to affirm a district court decision on any grounds for which
    there is a record sufficient to permit conclusions of law, even grounds not relied upon by
    the district court.” (internal quotation marks omitted)). And we should do so when, as
    here, an issue will almost certainly return on appeal. I would therefore exercise our
    discretion to affirm on this alternative ground, which is more than “adequately supported
    by the record.” Davis v. Roberts, 
    425 F.3d 830
    , 834 (10th Cir. 2005).
    The Fourth Amendment permits brief investigative stops when law enforcement
    officers have “a particularized and objective basis for suspecting the particular person
    stopped of criminal activity.” United States v. Cortez, 
    449 U.S. 411
    , 417–18 (1981).
    Whether officers have reasonable suspicion depends “upon both the content of
    information possessed by police and its degree of reliability.” Alabama v. White, 
    496 U.S. 325
    , 330 (1990). The standard takes into account “the totality of the circumstances,”
    Cortez, 
    449 U.S. at
    417—all the information officers possessed. Although a mere hunch
    does not create reasonable suspicion, the level of suspicion required is “considerably less
    than proof of wrongdoing by a preponderance of the evidence.” United States v.
    Sokolow, 
    490 U.S. 1
    , 7 (1989).
    In this case, the officers responded to a 911 call that exhibited adequate indicia of
    reliability. Combined with their knowledge of PCP-related drug activity at the address
    and in the immediate area, a brief investigative stop was fully justified.
    The Supreme Court has noted that “[a]n anonymous tip alone seldom demonstrates
    the informant’s basis of knowledge or veracity,” Navarette v. California, 
    572 U.S. 393
    ,
    397 (2014), so an anonymous tip is consequently seldom enough for reasonable suspicion.
    But the Court has held, “under appropriate circumstances, an anonymous tip can
    demonstrate sufficient indicia of reliability to provide reasonable suspicion to make [an]
    2
    investigative stop.” 
    Id.
     (internal quotation marks omitted). Thus, the Court has held that
    an anonymous tip can suffice for reasonable suspicion, given some indicia of reliability,
    though generally some additional information is needed. In this case we have both.
    The Supreme Court has plainly held that not all anonymous tips give police
    reasonable suspicion to make an investigative stop. In Florida v. J.L., 
    529 U.S. 266
    (2000), police received an anonymous phone call alleging that “a young black male
    standing at a particular bus stop and wearing a plaid shirt was carrying a gun,” 
    id. at 268
    .
    The call itself did not exhibit any signs of being reliable—there was “no audio recording
    of the tip, and nothing [was] known about the informant”—so “[a]part from the tip, the
    officers had no reason to suspect” the young man of any illegal conduct. 
    Id.
     Under these
    circumstances, the Court unanimously held that the officers lacked reasonable suspicion
    to frisk the defendant for weapons.
    More recently, however, the Supreme Court has under different circumstances
    found an anonymous tip sufficient under the Fourth Amendment. See Navarette, 572
    U.S. at 393. The police in Navarette received a 911 emergency call stating that a vehicle
    had just run the caller off the road. The caller provided the dispatcher with the license
    plate number, which police used to locate and stop the vehicle. The Court found three
    factors especially relevant: the tipster (1) “claimed eyewitness knowledge of the alleged
    dangerous driving,” (2) “reported the incident soon after she was run off the road,” and
    3
    (3) “use[d] the 911 emergency system.” Id. at 399–400; see also United States v. Chavez,
    
    660 F.3d 1215
    , 1222 (10th Cir. 2011) (laying out similar considerations).
    Here, the informant appears to have personally observed Gaines conducting a drug
    transaction, but we cannot assume that fact when the record is inconclusive. The majority
    is correct that this is a disputed fact because the caller never explicitly says how he knows
    of the illegal conduct. The caller was certainly personally observing Gaines while on the
    phone with the 911 operator and noted that Gaines “just made about 20 dollars.” Gov’t
    Ex. 1 at 0:46–48. And he knew how Gaines was dressed and where he had parked his
    car. But we ultimately cannot be sure the tipster was in a similar position to the caller in
    Navarette.
    We have no need to rely on this disputed fact, however, because the claim of
    eyewitness knowledge is only one indicium of reliability. It cannot be dispositive in
    either direction because officers have even less ability to confirm a tipster’s claim of
    personal knowledge than other aspects of an anonymous call. And the other two relevant
    considerations are present. The caller made a “contemporaneous report” of his
    observations of Gaines’s activities, criminal or not, and the caller used the 911 system.
    Navarette, 572 U.S. at 399–400. The anonymous call also contained several other indicia
    of reliability.
    The anonymous tipster described his observations to the emergency operator as he
    saw them, stating clearly, “I’m watching him right now.” Gov’t Ex. 1 at 1:39–41. This
    4
    information is the “sort of contemporaneous report [that] has long been treated as
    especially reliable.” Navarette, 572 U.S. at 399. This is because “substantially
    contemporaneity of event and statement negate the likelihood of deliberate or conscious
    misrepresentation.” Id. at 400 (citing Advisory Committee’s Notes on rule of evidence
    803(1), which describes “the rationale for the hearsay exception for ‘present sense
    impression[s]’”). Granted, the caller here does not describe any criminal activity
    contemporaneously with his observations. This weakens the reliability of the criminal
    allegations. But the contemporaneousness of the caller’s noncriminal information
    increases the overall reliability of the tip because the tipster reported mostly present sense
    impressions, which “weigh[s] in favor of the caller’s veracity.” See id. (emphasis added).
    And an anonymous caller’s veracity is at least part of the overall reliability inquiry.
    Also significant is the caller’s use of the 911 emergency system. As the Supreme
    Court reasoned in Navarette, “A 911 call has some features that allow for identifying and
    tracing callers, and thus provide some safeguards against making false reports with
    immunity.” Id. For instance, a recorded call “provides victims with an opportunity to
    identify the false tipster’s voice and subject him to prosecution,” and FCC regulations
    prohibit carriers from allowing callers to “block call recipients from obtaining their
    identifying information.” Id. at 400–01. This does not “suggest that tips in 911 calls are
    per se reliable,” but it does mean that a tipster’s use of the 911 system is “one of the
    5
    relevant circumstances that, taken together, justified the officer’s reliance on the
    information reported in the 911 call.”1 Id. at 401.
    In this case, moreover, we have several other indicia of reliability. First, the caller
    told the 911 operator where he was. His first words were, “Uh yes, I’m down here at uh
    Frank Gill Center . . . Frank Williams Center.” Gov’t Ex. 1 at 0:02–07. He later
    confirmed this location by exiting the building briefly to verify and report the exact
    address where he was located. See United States v. Madrid, 
    713 F.3d 1251
    , 1260 (10th
    Cir. 2013) (“giving the address” where the crime took place and the caller’s own location
    “was at least an indicium of reliability”) (internal quotation marks omitted). This,
    combined with the use of the 911 emergency system, jeopardized his anonymity, which
    created a “disincentive for making false allegations.” United States v. Jenkins, 
    313 F.3d 549
    , 554 (10th Cir. 2002); see also United States v. Copening, 
    506 F.3d 1241
    , 1247 (10th
    Cir. 2007) (“The fact the caller provided authorities some basis for discovering his
    identity makes it less likely his tip was phony.”).
    Second, the caller spent over two minutes on the phone with the 911 operator and
    answered every question put to him. When the operator asked what type of car Gaines
    was driving, the caller answered honestly that he did not know but continued, “I can tell
    1
    Gaines’s counsel at oral argument contended that a 911 call does not make a tip
    more reliable because tipsters may use burner phones or other methods to hide detection.
    But this was no more true in 2015 when this incident occurred than in 2014 when the
    Supreme Court decided Navarette.
    6
    ya if you wait.” Gov’t Ex. 1 at 1:36–37. He also took the time to verify the address of the
    building where the police needed to go.
    Third, the caller did not decline to give his name; the 911 operator simply never
    asked. This is certainly an indicium of reliability. See Madrid, 713 F.3d at 1260 (finding
    significant that “the 911 operator never asked the caller for his name or other identifying
    information and there [was] no reason to believe he would not have provided this
    information if requested”); United States v. Torres, 
    534 F.3d 207
    , 212 (3d Cir. 2008)
    (same). Again, these considerations do not make tips reliable per se. But a reasonable
    officer could find an anonymous tip fairly credible when the caller reveals where he is
    located, jeopardizing his anonymity; does not decline to give any information, especially
    identifying information; and does not seem in any hurry to make an allegation and hang
    up.
    The officers also had information beyond the anonymous (yet sufficiently reliable)
    tip on which to rely. They had first-hand officer observation and knowledge. The
    officers knew which person in the parking lot had been accused of drug dealing: another
    officer, Officer Wilcox, who at the time was off-duty at the Center, radioed in that the
    man getting into the Cadillac was the person who had been standing on the street corner
    dressed in all red when the tipster called. Thus, the officers could be confident that
    Gaines was the person the caller had accused of criminal activity. See Cortez, 
    449 U.S. at
    7
    417–18 (officers must have “a particularized and objective basis for suspecting the
    particular person stopped of criminal activity” (emphasis added)).
    In addition, the officers had personal knowledge of drug, and specifically PCP-
    related, activity in the immediate area of the Wilhelmina Gill Center. See United States v.
    DeJear, 
    552 F.3d 1196
    , 1201 (10th Cir. 2009) (“[T]he fact that conduct occurs in an area
    known for criminal activity [is an] appropriate factor[] to consider in determining whether
    reasonable suspicion exists.”). Officer Rowland testified at length at the suppression
    hearing regarding his knowledge of drug activity near the Center. Officer Davis also
    testified that she was aware of “a lot of medical-type calls of individuals on PCP, along
    with complaints of narcotics sales in the area.” R., Vol. I at 192.
    Gaines now claims that the two officers’ knowledge of drug activity at the Center
    and the immediate area is a disputed issue of fact that must be resolved by the district
    court. But the officers’ testimony that each was aware of this drug activity is
    unequivocal—and unrefuted.
    Officer Rowland laid foundation for a government exhibit that revealed eight
    police reports to the exact address for drug-related medical treatment that calendar year.
    The police reports confirm officers had been called to the address for drug overdoses
    three times in the two months prior to Gaines’s arrest. Two of those reports specifically
    mention that the person receiving treatment had taken or had likely taken PCP, the
    specific drug the anonymous tipster identified.
    8
    Officer Rowland also testified extensively about his personal knowledge of these
    events. He told the court he had personally “responded to calls for service” in the
    immediate area of the Wilhelmina Gill Center for various things but certainly for “a lot of
    narcotics complaints.” R., Vol. I at 151–52, 154. The officer testified that leading up to
    the day of the arrest “[w]e had an increased contact with individuals under the influence
    of PCP.” Id. at 152. He continued, police received “[n]umerous medical calls,
    sometimes multiple within a few minutes in that general area of individuals exhibiting
    behavior that they were under the influence of PCP . . . . So we would usually respond,
    whether it be a police call or a medical call.” Id.
    We may rely on this record evidence based on the district court’s findings of fact
    and the record evidence. The district court specifically found that Officer Rowland “was
    familiar with the Wilhelmina Gill Center and the surrounding area” and “had responded
    to several drug-related calls” at the Center. R., Vol. I at 136. The court also found that
    “officers had been dispatched to the Wilhelmina Gill Center eight times . . . for medical
    calls involving reactions to PCP or other substances.” Id. It is true that the district court
    did not specifically find that the officers were aware of the PCP-related medical calls
    established in the police records. But Gaines did not challenge the officers’ assertion of
    this personal knowledge at the suppression hearing; he produced no evidence to
    contradict the officers’ testimony and barely questioned them on the issue during cross-
    examination. Id. at 178–80, 195. The cross-examinations on this point were only to
    9
    clarify that not all the drug-activity of which the officers knew was specifically PCP
    related.
    The suppression hearing record therefore shows that (1) Officers Rowland and
    Davis personally responded to service calls in the area of the Center, especially for
    narcotics complaints; and (2) at least Officer Rowland was aware of the eight police
    reports he sponsored into evidence of drug related activity at the same address as the
    arrest happened, including the two service calls for PCP-related drug activity at the
    Center within two months of Gaines’s arrest. This is sufficient evidence to conclude that
    the officers had additional knowledge, beyond the anonymous phone call, to raise
    reasonable suspicion that Gaines was selling PCP in the parking lot of the Wilhelmina
    Gill Center.
    Thus, the officers reasonably relied on the anonymous tip in conjunction with their
    own knowledge because together “the informant’s story and the surrounding facts
    possessed an internal coherence that gave weight to the whole.” United States v. Brown,
    
    496 F.3d 1070
    , 1078–79 (10th Cir. 2007). So even “[e]xercising the significant
    skepticism and careful scrutiny required in the anonymous-informant context,” Copening,
    
    506 F.3d at 1247
     (internal quotation marks omitted), I would affirm on grounds of
    reasonable suspicion.
    10