Commonwealth v. Long ( 2020 )


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    SJC-12868
    COMMONWEALTH   v.   EDWARD LONG.
    Suffolk.      March 3, 2020. - September 17, 2020.
    Present:   Gants, C.J., Lenk, Gaziano, Lowy, Budd, Cypher,
    & Kafker, JJ.1
    Threshold Police Inquiry. Constitutional Law, Equal protection
    of laws. Practice, Criminal, Motion to suppress.
    Evidence, Profile, Statistics.
    Indictments found and returned in the Superior Court
    Department on February 9, 2018.
    A pretrial motion to suppress evidence was heard by Joseph
    F. Leighton, Jr., J.
    An application for leave to file an interlocutory appeal
    was allowed by Lenk, J., in the Supreme Judicial Court for the
    county of Suffolk, and the appeal was reported by her.
    John P. Warren for the defendant.
    Cailin M. Campbell, Assistant District Attorney, for the
    Commonwealth.
    Rebecca Kiley, Committee for Public Counsel Services,
    Matthew R. Segal, Jessica Lewis, & Jessie J. Rossman, for
    Committee for Public Counsel Services & another, amici curiae,
    submitted a brief.
    1 Chief Justice Gants participated in the deliberation on
    this case and authored his concurrence prior to his death.
    2
    Oren N. Nimni, Katharine Naples-Mitchell, Chauncey B. Wood,
    & Radha Natarajan, for Massachusetts Association of Criminal
    Defense Lawyers & others, amici curiae, submitted a brief.
    GAZIANO, J.   At about eleven o'clock on a November morning,
    two members of the Boston police department's youth violence
    strike force, who had been driving an unmarked vehicle, noticed
    a maroon Mercedes pass in front of them on a residential street.
    The driver was a Black man.    The officers decided to query the
    vehicle's license plate in their onboard computer.    The results
    returned indicated that the vehicle was registered to a Black
    woman and that it lacked an inspection sticker.    The officers
    stopped the vehicle.    When they learned that the driver, the
    defendant, had outstanding warrants and his driver's license was
    suspended, they searched the vehicle and found a gun in a bag on
    the rear passenger seat.
    The defendant subsequently was charged with several
    firearms offenses.2    He moved to suppress the evidence seized
    from the vehicle, on the ground that the motor vehicle stop was
    the product of selective enforcement based on race, and the
    2 The defendant was charged with unlawful possession of a
    firearm, G. L. c. 269, § 10 (a), as well as an enhancement for
    two previous convictions of violent crimes or serious drug
    offenses, G. L. c. 269, § 10G; carrying a loaded firearm, G. L.
    c. 269, § 10 (n); possession of ammunition, G. L. c. 269,
    § 10 (h); possession of a large capacity feeding device, G. L.
    c. 269, § 10 (m); and receiving a firearm with a defaced
    identification number, G. L. c. 269, § 11C.
    3
    inventory search of the vehicle was impermissible.    A Superior
    Court judge determined that the defendant had not met his
    initial burden to raise a reasonable inference that the stop had
    been made been motivated by race, and that the decision to
    impound the vehicle was reasonable in the circumstances; he
    therefore denied the motion.    The defendant sought leave in the
    county court to pursue an interlocutory appeal; the single
    justice allowed the application and ordered the appeal to be
    conducted in this court.
    We conclude that the Superior Court judge abused his
    discretion in denying the motion to suppress, because the
    defendant produced sufficient evidence to raise a reasonable
    inference that the stop was racially motivated.     Nonetheless, we
    are persuaded that, in our efforts in Commonwealth v. Lora, 
    451 Mass. 425
    , 436-438 (2008), to ease the burden on defendants, we
    set the bar too high for defendants attempting to establish a
    reasonable inference of a discriminatory stop.    In practice,
    providing statistical evidence sufficient to raise a reasonable
    inference that a motor vehicle stop was racially motivated,
    given the limitations of available police data, has proved
    infeasible for defendants.     The judge's ruling well illustrates
    the concerns repeatedly raised about the difficulty of meeting
    the requirements set forth in Lora, supra at 447-449.     See
    4
    Commonwealth v. Buckley, 
    478 Mass. 861
    , 879-880 (2018) (Budd,
    J., concurring), and cases cited.
    Thus, in order to ensure that drivers who are subjected to
    racially motivated traffic stops have a viable means by which to
    vindicate their rights to the equal protection of the laws, as
    provided by the Massachusetts Declaration of Rights, we today
    establish a revised test.   A defendant seeking to suppress
    evidence based on a claim that a traffic stop violated
    principles of equal protection bears the burden of establishing,
    by motion, a reasonable inference that the officer's decision to
    initiate the stop was motivated by race or another protected
    class.   To raise this inference, the defendant must point to
    specific facts from the totality of the circumstances
    surrounding the stop; the inference need not be based in
    statistical analysis.   If this inference is established, the
    defendant is entitled to a hearing at which the Commonwealth
    would have the burden of rebutting the inference.   Absent a
    successful rebuttal, any evidence derived from the stop would be
    suppressed.3
    3 We acknowledge the amicus briefs submitted by the
    Committee for Public Counsel Services and the American Civil
    Liberties Union of Massachusetts, Inc.; and by the Massachusetts
    Association of Criminal Defense Lawyers, The New England
    Innocence Project, Lawyers for Civil Rights, and the Charles
    Hamilton Houston Institute for Race and Justice at Harvard Law
    School.
    5
    1.   Background.   We present the facts as found by the
    motion judge, supplemented by uncontroverted facts from the
    record that the judge "explicitly or implicitly credited,"
    reserving certain details for discussion.    See Commonwealth v.
    Jones-Pannell, 
    472 Mass. 429
    , 431 (2015) ("Although an appellate
    court may supplement a motion judge's subsidiary findings with
    evidence from the record that is uncontroverted and undisputed
    and where the judge explicitly or implicitly credited the
    witness's testimony, . . . it may do so only so long as the
    supplemented facts do not detract from the judge's ultimate
    findings" [quotations and citations omitted]).
    At approximately 11 A.M. on November 28, 2017, the
    defendant, a young Black man, was driving a Mercedes sport
    utility vehicle (SUV) on a well-traveled and largely residential
    road in the Clam Point section of Boston.   Two plainclothes
    officers from the Boston police department's youth violence
    strike force (gang unit)4 were sitting in an unmarked vehicle on
    a side street, where they were waiting to make a right turn onto
    the road on which the defendant was driving.
    The defendant drove past the side street, and the officers
    turned onto the main road directly behind his vehicle.    They did
    4 The primary purpose of the Boston police department's
    youth violence strike force is proactively to reduce gang and
    gun violence and drug activity in Boston.
    6
    not observe a traffic violation, but one of the officers decided
    to enter the vehicle's license plate number into the Criminal
    Justice Information Services (CJIS) database.   The query
    revealed that the defendant's vehicle was registered to a Black
    woman, later identified by the defendant as his girlfriend.     The
    query also showed that the vehicle did not have a current
    inspection sticker.
    The officers decided to stop the vehicle on the basis of
    the missing inspection sticker.   When the officers activated
    their lights and siren, the defendant pulled into a lawful
    parking spot on the side of the street.    The officers requested
    his driver's license; the defendant explained that he did not
    have a driver's license, only a permit, which he provided the
    officers.   Although they had never encountered each other, one
    of the officers recognized the defendant's name and photograph
    from the gang unit's database.    After conducting a query of the
    defendant's information in the CJIS database, the officers
    learned that his driver's license was suspended, and that he had
    two default warrants for operating without a license and failure
    to identify himself.   The officers ordered him out of the
    vehicle and handcuffed him.
    The officers, who testified that they were aware of thefts,
    vandalism, and shootings in the vicinity, decided to tow and
    impound what they deemed to be a "high-end" vehicle, which did
    7
    not belong to the defendant.5    Before towing the vehicle, one
    officer began to search it.     During the search, he observed what
    he believed was the handle of a gun inside an open bag on the
    rear passenger seat.    Once he confirmed that the object indeed
    was a firearm, he read the defendant the Miranda warnings and
    then inquired whether the defendant had a license to carry a
    firearm.    When the defendant responded that he did not, the
    officers called dispatch to transport the defendant to the
    police station.
    2.    Prior proceedings.   The defendant filed a motion to
    suppress the evidence seized from the vehicle on the ground that
    the stop was impermissible because it was the result of
    selective enforcement of the traffic laws based on race, and the
    inventory search was an unlawful search for investigatory
    purposes, as impoundment of the vehicle was not necessary.        The
    defendant obtained an expert in statistics (a mathematics
    professor who has published numerous articles and reports, and
    had testified previously in the Superior Court and the District
    Court).    The expert testified at an evidentiary hearing on the
    motion, and introduced a report on her findings.     The judge
    5 At the hearing on the defendant's motion to suppress, one
    of the officers testified that, in cases where he was arresting
    the driver and the driver was not the owner of the vehicle, he
    routinely had the vehicle towed unless the owner arrived at the
    scene.
    8
    found that the datasets used by the expert were "insufficiently
    reliable to yield results that could raise a reasonable
    inference of impermissible discrimination," and denied the
    motion.   The defendant filed a timely notice of appeal and an
    application in the county court for leave to pursue an
    interlocutory appeal.   See Mass. R. Crim. P. 15 (a) (2), as
    amended, 
    476 Mass. 1501
     (2017).    The single justice allowed the
    appeal to proceed in this court.
    3.    Discussion.   In Lora, 451 Mass. at 437-438, we adapted
    general principles of our jurisprudence on selective prosecution
    in an attempt to address the persistent and pernicious problem
    of racial profiling in traffic enforcement.    Today, we conclude
    that that decision placed too great an evidentiary burden on
    defendants, and that we must lower this burden in order to
    create a viable path for individuals to present and demonstrate
    their claims of racial profiling in traffic stops.    While
    defendants still may raise a reasonable inference of racial
    profiling by demonstrating consistent patterns of racially
    disparate traffic enforcement by the officer involved, they also
    may raise a reasonable inference that a stop was racially
    motivated based on the totality of the circumstances surrounding
    the particular traffic stop at issue.
    Furthermore, in our view the problem of discriminatory
    traffic stops continues to be best addressed under our equal
    9
    protection jurisprudence and not, as Justice Budd's concurrence
    suggests, the search and seizure doctrine of art. 14 of the
    Massachusetts Declaration of Rights.     As to the stop of this
    defendant, even under the overly heavy evidentiary burden that
    resulted from our decision in Lora, we conclude that he
    presented more than adequate data to support his claim, and thus
    that the judge erred in denying his motion to suppress.
    a.     Equal protection framework.   Our guarantee of equal
    protection under the law derives both from the Fourteenth
    Amendment to the United States Constitution and arts. 1 and 10
    of the Massachusetts Declaration of Rights.    When the Fourteenth
    Amendment was ratified after the Civil War, its "primary
    objective . . . was the freedom of [African-Americans], the
    security and firm establishment of that freedom, and the
    protection of the newly-made freeman and citizen from the
    oppressions of those who formerly had exercised unlimited
    dominion over him" (quotation and citation omitted).     Flowers v.
    Mississippi, 
    139 S. Ct. 2228
    , 2238 (2019).    Art. 1 has a similar
    purpose.   Ratified as part of the Massachusetts Declaration of
    Rights in 1780, the article was the basis of the judicial
    abolition of slavery in 1781, see Jackson v. Phillips, 
    14 Allen 539
    , 563 (1867), and subsequent decisions applying the guarantee
    10
    of equal protection to African-Americans.6   See, e.g.,
    Commonwealth v. Aves, 
    18 Pick. 193
    , 210 (1836).
    Under these constitutional guarantees, the racism in which
    our nation had been steeped was to yield to the promise of
    equality.   See Williams v. Illinois, 
    399 U.S. 235
    , 245 (1970)
    ("the constitutional imperatives of the Equal Protection Clause
    must have priority over the comfortable convenience of the
    status quo").   And, indeed, many explicitly discriminatory laws
    did fall.   See, e.g., McLaughlin v. Florida, 
    379 U.S. 184
    , 184
    (1964).
    All too frequently, however, the prohibition against
    facially discriminatory laws has been inadequate to address the
    role played by racism and other invidious classifications in the
    6 These protections, of course, also apply to suspect
    classifications other than those based on race. "The Equal
    Protection Clause was intended to work nothing less than the
    abolition of all caste-based and invidious class-based
    legislation." Plyler v. Doe, 
    457 U.S. 202
    , 213 (1982). Under
    the Federal Constitution, the guarantee of equal protection
    forbids the government from making suspect classifications,
    include those based on race, religion, nationality, alienage, or
    membership in another discrete and insular minority, unless the
    governmental action survives strict scrutiny. See, e.g., New
    Orleans v. Dukes, 
    427 U.S. 297
    , 303-304 (1976); Graham v.
    Richardson, 
    403 U.S. 365
    , 372 (1971), citing United States v.
    Carolene Prods. Co., 
    304 U.S. 144
    , 152-153 n.4 (1938); Graham,
    
    supra at 376
    . See also Bolling v. Sharpe, 
    347 U.S. 497
    , 500
    (1954) (applying equal protection guarantee against Federal
    government under Fifth Amendment to United States Constitution).
    Our State Constitution goes further and applies strict scrutiny
    review to sex and gender classifications as well. See Finch v.
    Commonwealth Health Ins. Connector Auth., 
    459 Mass. 655
    , 665-666
    (2011), S.C., 
    461 Mass. 232
     (2012).
    11
    way facially neutral laws actually are enforced.   See Buckley,
    478 Mass. at 871 (sharing "considerable, legitimate concerns
    regarding racial profiling and the impact of such practices on
    communities of color"); Lora, 451 Mass. at 449 (Ireland, J.,
    concurring); Commonwealth v. Feyenord, 
    445 Mass. 72
    , 88 (2005),
    cert. denied, 
    546 U.S. 1187
     (2006) (Greaney, J., concurring);
    Commonwealth v. Gonsalves, 
    429 Mass. 658
    , 670 (1999) (Ireland,
    J., concurring).
    Thus, it long has been held that "[t]he equal protection
    principles of the Fourteenth Amendment . . . and arts. 1 and
    10 . . . prohibit discriminatory application of impartial laws."
    See Lora, 451 Mass. at 436, quoting Commonwealth v. Franklin
    Fruit Co., 
    388 Mass. 228
    , 229–230 (1983).   See also New York
    Times Co. v. Commissioner of Revenue, 
    427 Mass. 399
    , 406 (1998),
    citing Yick Wo v. Hopkins, 
    118 U.S. 356
    , 373 (1886).   While some
    selectivity or discretion must be tolerated in criminal law
    enforcement, that selectivity is permissible only so long as it
    "is not based on an 'unjustifiable standard such as race,
    religion or other arbitrary classification.'"   Lora, supra
    at 437, quoting Commonwealth v. King, 
    374 Mass. 5
    , 20 (1977).
    See Oyler v. Boles, 
    368 U.S. 448
    , 456 (1962).
    Consistent with Federal equal protection law, we have held
    that a prosecution brought based on an impermissible
    classification must be dismissed.   See King, 
    374 Mass. at 22
    .
    12
    "Because we presume that criminal prosecutions are undertaken in
    good faith, without intent to discriminate, the defendant bears
    the initial burden of . . . present[ing] evidence which raises
    at least a reasonable inference of impermissible
    discrimination."   Commonwealth v. Franklin, 
    376 Mass. 885
    , 894
    (1978), and cases cited.     To support this inference, a defendant
    must show that "a broader class of persons than those prosecuted
    has violated the law, . . . that failure to prosecute was either
    consistent or deliberate, . . . and that the decision not to
    prosecute was based on an impermissible classification such as
    race, religion, or sex" (citations omitted).     See 
    id.
       "If a
    defendant meets this prima facie showing, the case must be
    dismissed unless the Commonwealth is able to rebut the inference
    of selective prosecution."    Commonwealth v. Wilbur W., 
    479 Mass. 397
    , 409 (2018), citing Commonwealth v. Bernardo B., 
    453 Mass. 158
    , 168 (2008).
    This court has identified the discriminatory enforcement of
    traffic laws as particularly toxic.     "Years of data bear out
    what many have long known from experience:    police stop drivers
    of color disproportionately more often than Caucasian drivers
    for insignificant violations (or provide no reason at all)."
    Buckley, 478 Mass. at 876-877 (Budd, J., concurring).      See
    Pierson, Simou, Overgoor, Corbett-Davis, Jenson, Shoemaker,
    Ramachandran, Barghouty, Phillips, Shroff, & Goel, A Large-Scale
    13
    Analysis of Racial Disparities in Police Stops Across the United
    States, 4 Nature Human Behavior 736, 736, 737 (2020) (analysis
    of approximately 95 million stops nationwide found that
    "[r]elative to their share of the residential population, . . .
    [B]lack drivers were, on average, stopped more often than white
    drivers," and that Black drivers comprised a smaller share of
    drivers stopped at night, when it is harder for officers to
    detect race, "suggest[ing] [B]lack drivers were stopped during
    daylight hours in part because of their race").
    The discriminatory enforcement of traffic laws is not a
    minor annoyance to those who are racially profiled.   To the
    contrary, these discriminatory practices cause great harm.      See
    Buckley, 478 Mass. at 877 (Budd, J., concurring), citing
    Feyenord, 445 Mass. at 88 (Greaney, J., concurring) ("to a
    Caucasian driver a traffic stop may be annoying or embarrassing,
    but for a driver of color, such a stop can be humiliating and
    painful. . . . Further, recent tragic events have shown that the
    fear people of color have of being stopped by police is
    justified:   African–Americans have been killed during routine
    traffic stops").   See also Utah v. Strieff, 
    136 S. Ct. 2056
    ,
    2069 (2016) (Sotomayor, J., dissenting) ("unlawful 'stops' have
    severe consequences much greater than the inconvenience
    suggested by the name. . . . When we condone officers' use of
    14
    these devices without adequate cause, we . . . risk treating
    members of our communities as second-class citizens").
    While the constitutional principle at stake in this case is
    exceedingly clear -- police may not target drivers for traffic
    stops, citations, and further investigation because of their
    race -- the evidentiary difficulties in identifying racially
    motivated traffic stops are profound.   The traffic stop often
    constitutes the first and only interaction between a police
    officer and the occupants of a stopped vehicle; the interaction
    thus generally provides a minimal amount of direct evidence of
    the officer's motivations for the particular stop.
    Additionally, the plethora of potential traffic violations is
    such that most drivers are unable to avoid committing minor
    traffic violations on a routine basis, thereby affording
    officers wide discretion in the enforcement of traffic laws.
    See State v. Ladson, 
    138 Wash. 2d 343
    , 358 n.10 (1999), citing
    Shakow, Let He Who Never Has Turned Without Signaling Cast the
    First Stone:   An Analysis of Whren v. United States, 
    24 Am. J. Crim. L. 627
    , 633 (1997).
    b.   The Lora selective prosecution analysis.    Due to these
    challenges, in combination with the urgent need to deter
    discriminatory policing, in Lora, 451 Mass. at 437, we attempted
    to adapt the principles of selective prosecution to the unique
    evidentiary challenges posed by claims of discriminatory traffic
    15
    stops.    We did so by relying upon the preexisting burden-
    shifting analysis of our selective prosecution framework, but
    expanding the ways in which a defendant could meet his or her
    initial burden.
    In the first stage of that analysis, a defendant must
    "'present evidence which raises at least a reasonable inference
    of impermissible discrimination,' including evidence that 'a
    broader class of persons than those prosecuted has violated the
    law, . . . that failure to prosecute was either consistent or
    deliberate, . . . and that the decision not to prosecute was
    based on an impermissible classification such as race, religion,
    or sex.'"   Lora, 451 Mass. at 437, quoting Franklin, 
    376 Mass. at 894
    .   Because of the difficulty of showing that a particular
    officer's intent in making a specific motor vehicle stop was
    racially motivated, however, we held that the defendant's burden
    could be met through the presentation of evidence of that
    officer's motor vehicle stops in other cases.   See Lora, supra
    at 442.
    By allowing reasonable inferences based on broader patterns
    involving other defendants, our holding in Lora avoided the
    limitations that have been placed on Federal equal protection
    claims based on variances in statistics since the United States
    Supreme Court's decision in McCleskey v. Kemp, 
    481 U.S. 279
    ,
    292-293, 297-298, 311-313 (1987).   In that case, the Court
    16
    determined that the statistical data presented by the defendant
    demonstrated a correlation between race and the imposition of
    the death penalty, but was insufficient to show causation in the
    defendant's specific case.   With respect to the protections
    against selective enforcement of traffic laws under our State
    constitution, we stated that the evidence presented by a
    defendant, "[a]t a minimum, . . . must establish that the racial
    composition of motorists stopped for motor vehicle violations
    varied significantly from the racial composition of the
    population of motorists making use of the relevant roadways, and
    who therefore could have encountered the officer or officers
    whose actions have been called into question."   Lora, 451 Mass.
    at 442.
    As with any other selective enforcement claim, if a
    defendant raises a reasonable inference that a stop was
    motivated by race, the burden shifts to the Commonwealth to
    rebut the inference.   See Lora, 451 Mass. at 438.   Unlike other
    types of selective prosecution cases, however, if the
    Commonwealth fails to rebut that inference in the context of a
    traffic stop, the remedy is not dismissal.   Because the
    discriminatory enforcement of traffic laws is more closely tied
    to the evidence obtained as a result of the stop, rather than
    the decision to bring criminal charges based on that evidence,
    we concluded that suppression was the correct remedy for a
    17
    traffic stop that violated the guarantees of equal protection in
    arts. 1 and 10.     See id. at 438-439.
    c.    Revising the evidentiary requirements of Lora.   Our
    decision in Lora was intended to make it easier for defendants
    to establish racial discrimination by allowing them to raise a
    reasonable inference of racial profiling based on an officer's
    conduct in other traffic stops.    From this pattern of unequal
    treatment, and in the absence of explicit "smoking gun" evidence
    concerning that particular stop, a judge could infer that the
    challenged stop of an individual defendant was motivated by
    race.     Importantly, this mechanism also allows defendants a
    means by which to detect and challenge implicit bias, by
    demonstrating that an officer's pattern of behavior toward
    members of the protected class of which the defendant is a
    member showed discrimination, regardless of the officer's lack
    of awareness of any bias.
    When Lora was decided, it was believed that data regarding
    the traffic stops made by individual police officers throughout
    the Commonwealth, and the demographics of the individuals
    stopped, would be readily available to defendants.     See Lora,
    451 Mass. at 446 & n.33, n.34.     See also Boston Police
    Patrolmen's Ass'n, Inc. v. Police Dep't of Boston, 
    446 Mass. 46
    ,
    48-49 (2006), discussing St. 2000, c. 228, § 10.     Unfortunately,
    that assumption has not been borne out in practice.     A statute
    18
    enacted in 2000, effective for a limited period of time,
    mandated that police departments that appeared to have engaged
    in racial profiling in motor vehicle stops collect detailed data
    on stops made by each officer, and the races of the driver
    stopped.   See St. 2000, c. 228, § 10.    That statute, however,
    expired by its terms, and a replacement was not enacted.     See
    id. (requiring one year of data collection, followed by
    additional year of broader data collection for departments found
    to have engaged in racial or gender profiling).     Instead, our
    effort to ease the burden on defendants has been unsuccessful
    due to inadequate or inaccessible data.    See Buckley, 478 Mass.
    at 880 (Budd, J., concurring); Lora, 451 Mass. at 449 (Ireland,
    J., concurring).   Consequently, since 2008 when Lora was
    decided, we are aware of only one case in which a defendant
    successfully moved to suppress evidence under it.    See
    Commonwealth vs. Vargas, Middlesex Superior Court
    No. 1481CR1135, slip op. at 1, 16 (Aug. 16, 2019).
    Although we conclude that the defendant here also met his
    burden under the existing Lora standard, it is clear that Lora
    has placed too great an evidentiary burden on defendants.     The
    right of drivers to be free from racial profiling will remain
    illusory unless and until it is supported by a workable remedy.
    Therefore, the time has come to address Lora's practical
    shortcomings.
    19
    i.   Defendants' revised burden.   Although Lora, 451 Mass.
    at 440-442, focused on how statistical evidence could be used to
    meet a defendant's initial burden of raising a reasonable
    inference of discrimination, we did not say in that case that
    statistical evidence would replace the previous means of
    establishing a violation of equal protection, and would become
    the only way in which an inference that a stop was motivated by
    race could be raised.   See id. at 442 ("We are of the view that
    statistical evidence may be used to meet a defendant's initial
    burden of producing sufficient evidence to raise a reasonable
    inference of impermissible discrimination" [emphasis added]).
    Indeed, in the broader jurisprudence on selective
    enforcement, both nationally and in Massachusetts, the evidence
    necessary to raise a reasonable inference of discrimination need
    not be statistical.   See, e.g., Wilbur W., 479 Mass. at 409,
    quoting Bernardo B., 453 Mass. at 168 ("defendant raising a
    selective prosecution claim may do so 'by introducing
    statistical evidence or other data demonstrating that similarly
    situated suspects or defendants are treated differently by the
    prosecutor on the basis of impermissible categorizations'"
    [emphasis supplied]); Franklin, 
    376 Mass. at 894
     (testimonial
    evidence was used to support claim of selective prosecution);
    Marshall v. Columbia Lea Reg'l Hosp., 
    345 F.3d 1157
    , 1168 (10th
    Cir. 2003) ("[the defendant] seeks to prove the racially
    20
    selective nature of his stop and arrest not by means of
    statistical inference but by direct evidence of [the officer's]
    behavior during the events in question").   Nor must the asserted
    discrimination be "systematic [or] long-continued."    See Snowden
    v. Hughes, 
    321 U.S. 1
    , 9–10 (1944).
    In light of the persistent difficulties attendant to using
    statistical data to meet a claim under Lora, however, we now
    must develop more fully the other ways in which defendants may
    show that a stop was based on an impermissible classification.
    Cf. Batson v. Kentucky, 
    476 U.S. 79
    , 92 (1986) (previous
    decisions that required comprehensive statistics showing prior
    discriminatory action amounted to "crippling burden of proof" on
    defendants attempting to vindicate rights to equal protection).
    Therefore, while the use of statistical data continues to be one
    means by which a defendant may raise a reasonable inference that
    the challenged traffic stop was racially motivated, we today
    expand and clarify the other ways in which such an inference may
    be raised, by evidence of the totality of the circumstances
    surrounding the stop itself.
    Moreover, not only must the categories of permissible
    evidence be altered; the way in which defendants may establish a
    reasonable inference of discrimination also requires
    modification.   Under general selective prosecution analysis, a
    defendant's initial showing must include evidence "that a
    21
    broader class of persons than those prosecuted violated the
    law, . . . that failure to prosecute was either consistent or
    deliberate, . . . and that the decision not to prosecute was
    based on an impermissible classification such as race, religion,
    or sex."   See Bernardo B., 453 Mass. at 168, quoting Lora, 451
    Mass. at 437.   These first two requirements generally would be
    difficult or impossible to prove with circumstantial evidence.
    If a defendant sought to present evidence only concerning the
    stop itself, the defendant would not be able to show that a
    broader class of persons violated the law.    Furthermore, if a
    defendant did not point to consistent patterns of conduct or
    police admissions, it usually would not be possible to show that
    the failure to enforce the traffic laws was deliberate or
    consistent.
    In the context of racially biased motor vehicle stops,
    purportedly to enforce traffic laws, however, these first two
    requirements are unnecessary.   As stated, because of the
    ubiquity of traffic violations, only a tiny percentage of these
    violations ultimately result in motor vehicle stops, warnings,
    or citations.   Thus, it virtually always will be the case "that
    a broader class of persons" violated the law than those against
    whom the law was enforced.   See Bernardo B., 453 Mass. at 168.
    Similarly, in stopping one vehicle but not another, an officer
    necessarily has made a deliberate choice.    In the context of a
    22
    motor vehicle stop, we therefore conclude that the first two
    requirements are not needed.   The totality of the circumstances
    test, described infra, requires only the evidence necessary to
    support a reasonable inference that the stop was based on race
    or membership in another constitutionally protected group.
    Additionally, in the context of traffic stops, we must
    depart from our prior interpretations of the meaning of a
    "reasonable inference," to the extent that the phrase was used
    to represent an onerous standard in other areas of selective
    enforcement law.   In King, 
    374 Mass. at 17
    , for instance, a
    female defendant argued that her arrest and prosecution for
    prostitution was based on her gender, in violation of equal
    protection principles.   Notwithstanding the arresting officer's
    testimony "that he had never arrested a male prostitute and that
    it was the policy of the Boston police department vice squad to
    arrest only female prostitutes," we held that the defendant had
    fallen "far short of establishing any evidence of a denial of
    equal protection since other criminal statutes may be employed
    to punish male conduct equivalent to female prostitution."     
    Id. at 18
    .
    Similarly, in Franklin Fruit Co., 
    388 Mass. at 229-230
    , the
    defendant supermarket claimed that the prohibition against the
    operation of a supermarket on Sundays was applied against it,
    and not others, because its owners were Greek.   Relying upon the
    23
    doctrine of selective enforcement, the judge dismissed the
    charges against the supermarket after he found that the police
    chief had refused to enforce the prohibition against the
    defendant's competitors, and had called the owner of the
    supermarket a "money hungry Greek."   
    Id. at 230
    .   Yet, this
    court reversed that decision because it concluded that there was
    "nothing in the record to indicate that citations were issued to
    [the supermarket] simply because [its owner] was of Greek
    heritage."   
    Id. at 234
    .
    As has been demonstrated, these holdings would set a nearly
    impossible bar for victims of discriminatory traffic stops to
    clear in order to establish their claims, whether through
    statistics or other circumstantial evidence.   See Lora, 451
    Mass. at 445 (biased policing "would not be alleviated by a
    standard that nominally allows a defendant to make claim of
    selective enforcement of traffic laws, but forecloses such a
    claim in practice").   Rather than requiring a "reasonable
    inference," these cases actually demand something much more.
    Accordingly, we conclude that our past interpretations of a
    reasonable inference do not control in the context of traffic
    stops.   While a defendant must show more than the fact that he
    or she was a member of a constitutionally protected class and
    was stopped for a traffic infraction, the burden must not be so
    heavy that it makes any remedy illusory.   The requirement that a
    24
    defendant establish a reasonable inference that a traffic stop
    was motivated by racial bias means simply that the defendant
    must produce evidence upon which a reasonable person could rely
    to infer that the officer discriminated on the basis of the
    defendant's race or membership in another protected class.
    Conclusive evidence is not needed.
    ii.    The revised test.   The burden shifting framework under
    Lora remains the same, even as we elaborate on the ways in which
    a defendant can present nonstatistical evidence of a race-based
    pretextual stop.    A defendant first should raise a reasonable
    inference of racial profiling through a motion to suppress.     The
    motion should describe all of the circumstances of the traffic
    stop that support a reasonable inference that the decision to
    make the stop was motivated (whether explicitly or implicitly)
    by race.   The defendant need not submit admissible evidence;
    rather, the motion simply must point to specific facts about the
    stop that support such an inference.   These facts, including
    statements by the defendant and others, may be based on the
    defendant's personal knowledge, the defendant's own
    investigation, evidence obtained during discovery, and other
    relevant sources.    If the defendant's motion establishes such an
    inference, the defendant is entitled to a hearing, at which the
    Commonwealth would bear the burden of rebutting the inference.
    Of course, a traffic stop motivated by race is unconstitutional,
    25
    even if the officer also was motivated by the legitimate purpose
    of enforcing the traffic laws.
    When examining the totality of the circumstances, judges
    should consider factors such as:   (1) patterns in enforcement
    actions by the particular police officer;7 (2) the regular duties
    of the officer involved in the stop;8 (3) the sequence of events
    7 To make such a demonstration, a defendant might point to
    an officer's patterns of enforcement before and after the stop
    at issue. It could be probative, for example, if a significant
    percentage of stops made by the officer in the preceding weeks
    or months involved drivers of the same race being stopped for
    minor traffic infractions, while those of other races were not.
    Or, if the officer repeatedly noted the same minor infraction,
    such as a failure to signal a lane change, while stopping
    drivers who shared the same protected class as the defendant.
    Such evidence need not be demonstrated to be statistically valid
    in order to support a reasonable inference.
    8 Traffic stops initiated by officers whose primary
    assignment does not involve the enforcement of traffic laws
    might warrant particular scrutiny. For example, an officer
    working routine patrol might write many tickets as part of
    ordinary duties, as compared to an officer working a specialized
    assignment such as drug enforcement task force, hostage rescue,
    or a domestic violence unit.
    26
    prior to the stop;9 (4) the manner of the stop;10 (5) the safety
    interests in enforcing the motor vehicle violation;11 and (6) the
    specific police department's policies and procedures regarding
    traffic stops.12   These factors are not exhaustive; any relevant
    facts may be raised for the judge's consideration.
    9 It could be relevant that officers observed or followed a
    vehicle for an extended period of time prior to making the stop,
    see State vs. Deleon, N.M. Ct. App., No. 30,813, slip op. at 8
    (Feb. 14, 2013) (officer followed defendant for multiple miles
    before stop); State v. Arreola, 
    176 Wash. 2d 284
    , 301 (2012)
    (Chambers, J., dissenting) ("officer noticed, after following
    the car he wished to stop for a half mile or so, that its
    exhaust system was not in compliance with traffic regulations");
    a judge also might consider whether the circumstances would have
    allowed the officer to note the defendant's race, see State v.
    Snapp, 
    174 Wash. 2d 177
    , 199-200 (2012) (on dark night, officer
    could not see race of defendant).
    10A judge might examine whether the officer's conduct
    during the stop was consistent with, and limited to, that
    necessary to enforce the motor vehicle violation. See, e.g.,
    People v. Roundtree, 
    234 A.D. 2d 612
    , 613 (N.Y. 1996) (court
    considered fact that officer "did not question [the driver]
    about the [traffic] infraction or issue a traffic summons").
    Cf. Commonwealth v. Cordero, 
    477 Mass. 237
    , 242 (2017) ("police
    inquiry in routine traffic stop must end upon production of
    valid license and registration" [citation omitted]).
    11For example, where the traffic infraction clearly
    implicated significant public safety concerns, such as operating
    under the influence of alcohol, those concerns would weigh
    against drawing an inference of discriminatory intent.
    12If an officer's actions in making the stop deviated from
    the policies and procedures of his or her department, such as a
    stop by an undercover officer where a department had a policy
    against making routine traffic stops in unmarked vehicles, the
    deviation might support an inference that the stop involved
    racial profiling.
    27
    A defendant has a right to reasonable discovery of evidence
    concerning the totality of the circumstances of the traffic
    stop; such discovery may include the particular officer's recent
    traffic stops and motor vehicle-based field interrogations and
    observations (FIOs).     To the extent that the relevant
    information exceeds the automatic discovery requirements of
    Mass. R. Crim. P. 14 (a) (1) (A), as amended, 
    444 Mass. 1501
    (2005), a defendant may seek such discovery by means of a motion
    filed pursuant to Mass. R. Crim. P. 14 (a) (2), as appearing in
    
    442 Mass. 1518
     (2004).    See Commonwealth v. Durham, 
    446 Mass. 212
    , 234, cert. denied, 
    549 U.S. 855
     (2006) (Cordy, J.,
    dissenting) ("Rule 14 (a) (2) gives a judge discretion to
    authorize a defendant to discover from the Commonwealth
    'relevant evidence'").    "At the discovery stage, the question is
    whether the defendant has made a threshold showing of
    relevance."   Bernardo B., 453 Mass. at 169, discussing Mass. R.
    Crim. P. 14 (a) (2).     Where relevant and material, discovery
    also would include information regarding the policies and
    procedures pertaining to the officer's unit, as well as the
    officer's typical duties and responsibilities.    Of course, this
    right to discovery applies equally to all claims of racially
    motivated stops, regardless of whether a defendant is pointing
    to the circumstances of the stop to raise a claim of
    28
    discriminatory enforcement or is presenting the type of broader
    statistics contemplated by Lora.
    Once a reasonable inference of racial profiling has been
    established, the Commonwealth would bear the burden of rebutting
    that inference.   See Lora, 451 Mass. at 438.    To meet its
    burden, the Commonwealth would have to do more than merely point
    to the validity of the traffic violation that was the asserted
    reason for the stop.     Rather, it would have to grapple with all
    of the reasonable inferences and all of the evidence that a
    defendant presented, and would have to prove that the stop was
    not racially motivated.     If the Commonwealth does not rebut the
    reasonable inference that the stop was motivated at least in
    part by race, the defendant would have established that the stop
    violated the equal protection principles of arts. 1 and 10, and
    therefore was illegal, and any evidence derived from the stop
    would have to be suppressed.     See id.
    d.   Equal protection is the appropriate constitutional
    provision.   Justice Budd would use art. 14 to address the
    affliction of racial profiling in traffic enforcement, thereby
    grafting the equal protection inquiry onto our jurisprudence on
    searches and seizures.     This court and the United States Supreme
    Court, however, consistently have held that "the constitutional
    basis for objecting to intentionally discriminatory application
    of laws is the Equal Protection Clause, not the Fourth
    29
    Amendment" to the United States Constitution or art. 14 of the
    Massachusetts Declaration of Rights.   See Lora, 451 Mass.
    at 436, quoting Whren v. United States, 
    517 U.S. 806
    , 813
    (1996).
    While the justices differ as to which constitutional
    principles to use as the basis of a system intended to eliminate
    racial profiling in traffic stops, both approaches share this
    common goal.   It is critical to bear in mind that a disagreement
    about the best legal analysis to use to redress the fundamental
    problem of racial bias in traffic stops is not a disagreement
    about the importance of systemic change to attempt to reach this
    goal.
    Justice Budd contends that the use of a "would have" test,
    based solely on a reasonable officer standard, without inquiry
    into the true motivations of the officer who conducted the stop,
    would address the evidentiary challenges inherent in
    establishing that a traffic stop was based on racial profiling.
    In her view, an analysis under equal protection is susceptible
    to manipulation, whereas an analysis under art. 14, which asks
    whether a reasonable officer would have made the stop, somehow
    magically would eliminate all concerns of police manipulation or
    lack of candor.   Similarly, in this view, analyzing a traffic
    stop under art. 14 would eliminate judicial reluctance to
    inquire into an officer's motive in making the stop whereas, for
    30
    a driver to prevail on an equal protection claim, necessarily
    requires a finding that an officer indeed was racially biased.
    But these complex and nuanced subjective inquiries are not so
    easily avoided.     Given the significant difficulties in
    discerning the characteristics of a "reasonable officer," in
    conjunction with the justified trepidation of trial judges in
    second guessing discretionary law enforcement decisions where no
    discriminatory motivation was involved, any version of the
    "would have" inquiry, regardless of whether it explicitly
    includes only an objective component, inevitably would slide
    into the subjective motivation of the officer.     A determination
    that a reasonable (nonracist) officer would not have made the
    stop may be worded more palatably, but the underlying conclusion
    is the same as a determination that a stop was in violation of
    equal protection:    a judge allowing a motion to suppress
    evidence seized after both stops has inquired, however
    obliquely, into the officer's intent, and has determined that
    the stop was motivated by racial bias.
    That the examination of subjective motives is essentially
    unavoidable under the "would have" test, and therefore also
    subject to the "fraught" judicial inquiry into subjective
    intent, and potential manipulation by law enforcement, is
    illustrated by the ways in which the test has been used in
    practice.   That it has not, in fact, accomplished its goal of
    31
    removing officer intent and implicit bias from a reviewing
    judge's decision-making process suggests that in Massachusetts,
    too, the "would have" test will not be the magic wand that
    Justice Budd anticipates.   A review of its history in
    instructive.
    In 1995, the United States Supreme Court rejected the
    "would have" test and declared that a motor vehicle stop based
    on probable cause that a traffic violation had occurred complies
    with the Fourth Amendment, regardless of any ulterior motives
    for the stop.   See Whren, 
    517 U.S. at 813, 816-819
    .     In
    subsequent years, forty-seven States have followed the Court in
    rejecting the "would have" test.13
    13See Commonwealth v. Buckley, 
    478 Mass. 861
    , 870 (2018);
    State v. Williams, 
    249 So.3d 527
    , 532–533 (Ala. Crim. App.
    2017); Hamilton v. State, 
    59 P.3d 760
    , 765–766 (Alaska Ct. App.
    2002), cert. denied, 
    540 U.S. 915
     (2003); Jones v. Sterling, 
    210 Ariz. 308
    , 311 (2005); State v. Mancia-Sandoval, 
    361 S.W.3d 835
    ,
    839 (Ark. 2010); People v. Woods, 
    21 Cal. 4th 668
    , 680 (1999),
    cert. denied, 
    529 U.S. 1023
     (2000); People v. Rodriguez, 
    945 P.2d 1351
    , 1359–1360 (Colo. 1997); State v. Jones, 
    113 Conn. App. 250
    , 265 (2009) (noting Federal rule and declining to
    address under State Constitution); Dobrin v. Florida Dep't of
    Highway Safety & Motor Vehicles, 
    874 So. 2d 1171
    , 1173 (Fla.),
    cert. denied, 
    543 U.S. 957
     (2004); State v. Holler, 
    224 Ga. App. 66
    , 70 (1996); State v. Bolosan, 
    78 Haw. 86
    , 94 (1995); State v.
    Myers, 
    118 Idaho 608
    , 610 (Ct. App. 1990); People v. Gray, 
    305 Ill. App. 3d 835
    , 839 (1999); Mitchell v. State, 
    745 N.E.2d 775
    ,
    787 (Ind. 2001); Brown, 930 N.W.2d at 848-855, and cases cited;
    State v. Hardyway, 
    264 Kan. 451
    , 456 (1998); Moberly v.
    Commonwealth, 
    551 S.W.3d 26
    , 29 (Ky. 2018), reh'g denied (Aug.
    16, 2018); State v. Waters, 
    780 So. 2d 1053
    , 1056 (La. 2001);
    State v. Bolduc, 
    722 A.2d 44
    , 45 (Me. 1998); Thornton v. State,
    
    465 Md. 122
    , 135 (2019); People v. Labelle, 
    478 Mich. 891
    , 891
    32
    New Mexico and Washington, the only two States to have
    adopted the "would have" test post-Whren, explicitly have
    included the subjective motivations of the officer conducting
    the stop as part of their version of the test.14   See State v.
    Gonzales, 
    257 P.3d 894
    , 898 (N.M. 2011) (question is whether,
    based on totality of circumstances, "the officer who made the
    stop would have done so even without the unrelated motive");
    Ladson, 
    138 Wash. 2d at
    358–359 ("When determining whether a
    (2007), overruled on other grounds by People v. Mead, 
    503 Mich. 205
     (2019); State v. George, 
    557 N.W.2d 575
    , 578-579 (Minn.
    1997); Martin v. State, 
    240 So. 3d 1047
    , 1051–1052 (Miss. 2017),
    cert. denied, 
    138 S. Ct. 2592
     (2018); State v. Smith, 
    595 S.W.3d 143
    , 145-146 (Mo. 2020); Brunette v. State, 
    383 Mont. 458
    , 465
    (2016); State v. Draganescu, 
    276 Neb. 448
    , 460–461 (2008); Doyle
    v. State, 
    116 Nev. 148
    , 155 (2000); State v. McBreairty, 
    142 N.H. 12
    , 15 (1997); State v. Bacome, 
    228 N.J. 94
    , 103 (2017);
    People v. Robinson, 
    97 N.Y.2d 341
    , 349 (2001); State v.
    McClendon, 
    350 N.C. 630
    , 635–636 (1999); State v. Bartelson, 
    704 N.W.2d 824
    , 827-828 (N.D. 2005); Dayton v. Erickson, 
    76 Ohio St. 3d 3
    , 11 (1996); Lozoya v. State, 
    932 P.2d 22
    , 32 (Okla. Crim.
    App. 1996); State v. Olaiz, 
    100 Or. App. 380
    , 386-387 (1990);
    Commonwealth v. Chase, 
    599 Pa. 80
    , 102 (2008); State v. Bjerke,
    
    697 A.2d 1069
    , 1073 (R.I. 1997); Milledge v. State, 
    422 S.C. 366
    , 375 (2018); State v. Sleep, 
    590 N.W.2d 235
    , 237-238 (S.D.
    1999); State v. Donaldson, 
    380 S.W.3d 86
    , 92 (Tenn. 2012);
    Holder v. State, 
    595 S.W.3d 691
    , 698 (Tex. Crim. App. 2020);
    State v. Lopez, 
    873 P.2d 1127
    , 1134-1135 (Utah 1994); State v.
    Trudeau, 
    165 Vt. 355
    , 359 n.3 (1996); Thomas v. Commonwealth, 
    57 Va. App. 267
    , 273-274 (2010); Miller v. Chenoweth, 
    229 W. Va. 114
    , 120 (2012); State v. Houghton, 
    364 Wis. 2d 234
    , 250 (2015);
    Fertig v. State, 
    146 P.3d 492
    , 501 (Wyo. 2006).
    14Delaware has left the question unresolved, with one trial
    court decision applying the test and others rejecting it. See
    Turner v. State, 
    25 A.3d 774
    , 777 (Del. 2011), citing State v.
    Heath, 
    929 A.2d 390
     (Del. Super. Ct. 2006).
    33
    given stop is pretextual, the court should consider the totality
    of the circumstances, including both the subjective intent of
    the officer as well as the objective reasonableness of the
    officer's behavior."
    Under these tests, courts have focused on whether the
    circumstantial evidence was sufficient to establish that the
    officer had the requisite subjective motive.15   See, e.g.,
    Schuster v. State Dep't of Taxation & Revenue, Motor Vehicle
    Div., 
    283 P.3d 288
    , 298 (N.M. 2012) (approaching motorcycle
    operator whose motorcycle had fallen to ground was not pretext
    because motive was community caretaking); State vs. Deleon, N.M.
    Ct. App., No. 30,813, slip op. at 6-8 (Feb. 14, 2013) (wide turn
    violation was pretext for investigation of driving under
    influence of alcohol, where pattern was established by six
    witnesses who testified that they had been pulled over for minor
    15Moreover, Washington has deemed constitutional certain
    "mixed-motive" stops, in which an officer was motivated both by
    the need to address the traffic violation and by a desire to
    investigate other suspected criminal activity. In these cases,
    Washington courts delve even further into the subjective
    motivations of the officer, and will consider a stop permissible
    if the officer "ma[de] an independent and conscious
    determination that a traffic stop to address a suspected traffic
    infraction [was] reasonably necessary in furtherance of traffic
    safety and the general welfare." See Arreola, 
    176 Wash. 2d at
    298–299. Of course, under equal protection principles, a
    traffic stop motivated by race is unconstitutional even if the
    officer also is motivated by the legitimate purpose of enforcing
    traffic laws.
    34
    violations in previous months after leaving same bar, asked
    about drinking, and released without traffic citation); State v.
    Jones, 
    163 Wash. App. 354
    , 363 (2011) (stop for failure to use
    seat belt was not pretext, where officer cited defendant for
    infraction); State v. Montes-Malindas, 
    144 Wash. App. 254
    , 262
    (2008) (stop of driver who turned on headlights one hundred
    yards after starting to drive, conducted by officer who was not
    on traffic patrol, was pretext).16    These inquiries are quite
    similar to the inquiry described, supra, under a selective
    prosecution analysis.
    A move to art. 14 would confuse this inquiry, because our
    jurisprudence on search and seizure provides no guidance
    regarding which officer motivations render unreasonable an
    otherwise permissible traffic stop.    Our equal protection
    jurisprudence, by contrast, provides clear guidelines.     A
    governmental action based on membership in a suspect class,
    including "sex, race, color, creed, or national origin," is
    unconstitutional unless the action survives strict scrutiny.
    16See also State v. Scharff, 
    284 P.3d 447
    , 451 (N.M. Ct.
    App. 2012); State vs. Shindledecker, N.M. Ct. App., No. 34,442,
    slip op. at 5 (Aug. 11, 2016); State vs. Gonzales, N.M. Ct.
    App., No. 30,188, slip op. (May 1, 2012); State vs. Dominguez,
    N.M. Ct. App., No. 29,741, slip op. at 5 (Oct. 20, 2010); State
    v. Wright, 
    155 Wash. App. 537
    , 559 (2010), reversed on other
    grounds sub nom. State v. Snapp, 
    174 Wash. 2d 177
     (2012); State
    v. Nichols, 
    161 Wash. 2d 1
    , 11-12 (2007); State v. Myers, 
    117 Wash. App. 93
    , 96-98 (2003); State v. DeSantiago, 
    97 Wash. App. 446
    , 452 (1999).
    35
    See Finch v. Commonwealth Health Ins. Connector Auth., 
    459 Mass. 655
    , 662 (2011), S.C., 
    461 Mass. 232
     (2012), quoting King, 
    374 Mass. at 21
    .   Thus, unlike art. 14, our equal protection
    doctrine provides a clear definition of an unlawful traffic
    stop:   any stop based on a suspect classification.
    In practice, the additional methods of establishing racial
    profiling that the court adopts today, and the "would have" test
    that Justice Budd propounds, often could look similar at a
    hearing on a motion to suppress.   In some situations, however,
    the "would have" test might not be effective where an analysis
    under equal protection would.   By focusing on what a reasonable
    officer would have done in those particular circumstances, for
    example, and disregarding any overt discussion of intent, the
    "would have" test would conclude that a stop for driving twenty
    miles per hour over the speed limit in a residential
    neighborhood was reasonable to protect public safety, and would
    not take into account that the traffic enforcement officer
    making the stop largely was stopping Black drivers.    Similarly,
    if an officer targeted intensive traffic enforcement efforts
    only at neighborhoods where most residents are people of color,
    motor vehicle stops such as for running red lights or stop signs
    would be reasonable under the "would have" test to protect
    pedestrians and other vehicles.    Yet, under an equal protection
    analysis, the municipality-wide statistics that will be
    36
    available for all municipalities in the Commonwealth on an
    ongoing basis, as a result of a 2019 statute, see G. L. c. 90,
    § 63, inserted by St. 2019, c. 122, § 10, and part 3.f., infra,
    could be used to support a reasonable inference that the stops
    unfairly targeted communities of color, and were made due to
    racial bias.
    In sum, the deficiency in our response to race-based
    traffic enforcement has not been the basic principles of equal
    protection, but, rather, the burdens we have placed on
    defendants to establish their claims.   The way to address that
    issue, as we do today, is to modify the ways in which claims of
    racial profiling can be demonstrated, and not to change the
    constitutional protection under which claims are analyzed.
    e.   The defendant's evidence in this case.   Even as we
    create new methods that defendants may use to establish a
    reasonable inference of discrimination in traffic stops, we
    recognize that statistical evidence, if available, has unique
    advantages for reaching the thorny question of intent,
    particularly when implicit bias is at issue.   This is so
    regardless of whether the officers' actions are analyzed under
    an equal protection framework or under art. 14.   In terms of
    systemic change, statistics provide potentially the strongest
    tool to demonstrate that bias, particularly where it is
    implicit; indeed, the many journal articles relied upon by the
    37
    concurrence derive their power from presenting staggering
    inequity in numbers.
    There generally are two components to the statistical data
    that defendants have used to establish a reasonable inference
    that the decision to conduct the traffic stop was motivated by
    race:   (1) information about how the statute was enforced
    against other drivers of the defendant's race by the officers or
    department in question, often involving numbers of stops,
    citations, and FIOs for drivers of specific races (enforcement
    data); and (2) statistical data that estimate the demographic
    distribution of drivers on the roads in the area of the stop
    (benchmark data).    The two are then compared, under the
    assumption that, absent impermissible discrimination, the
    enforcement rates should reflect the demographic composition of
    all drivers.   See Lora, 451 Mass. at 442.   More specifically, in
    this case, the percentage of citations and FIOs involving Black
    drivers should have been similar to the estimated percentage of
    Black drivers on the road in the area of the stop.
    In support of his claim, the defendant obtained FIO reports
    issued by the officers who stopped him, for a period spanning
    from January 1, 2011, to November 28, 2017, the day of the stop;
    he also obtained citation data from December 14, 2011, to
    November 11, 2017.    The defendant then engaged a statistical
    expert to compare the citations and FIO reports involving motor
    38
    vehicle stops to the population of drivers on the road on which
    the defendant was stopped, that is, the "benchmark" population.
    The expert estimated the demographics of the benchmark
    population based on data from the 2010 United States Census
    concerning "census blocks" -- geographical subunits containing
    from 600 to 3,000 people -- for areas in which these officers
    either had issued a citation or had reported a motor vehicle-
    related FIO.   Because the population of motorists on these
    largely residential roads may include motorists who reside in
    areas outside the pertinent census blocks, the expert also
    estimated the demographics of benchmark populations in
    additional census blocks within 300 feet, 600 feet, and 1,000
    feet of an FIO or citation.   Ultimately, the expert concluded
    that the officers in this case were significantly more likely to
    conduct an FIO of a driver based on a motor vehicle infraction
    if the driver was Black than if the driver was not Black.17   She
    17Of the total number of the officers' vehicle-related
    field investigation and observation (FIO) reports, 80.62 percent
    involved Black drivers, as compared to a benchmark population of
    the census blocks containing those stops in which 44.67 percent
    of residents were Black. The benchmark estimate that 44.67
    percent of motorists on these roads were Black likely was an
    overestimate of the percentage of Black motorists on them, given
    that the proportion of Black residents was lower in all of the
    surrounding areas and municipalities. Nonetheless, the expert
    concluded that even if 77 percent of the actual motorists were
    Black, there was still a statistically significant probability
    that Black drivers were more likely to be the subject of an FIO
    than other drivers.
    39
    also concluded that there was strong statistical evidence that
    the officers issued citations to Black drivers in Boston at
    rates consistent with racial profiling.18
    The judge, however, found that this evidence did not
    satisfy the defendant's initial burden to raise a reasonable
    inference of discrimination under Lora.     Although the judge
    recognized that it was unclear whether the data that he
    concluded were necessary even existed, he reasoned that the FIO
    and citation data presented were unreliable because not every
    traffic stop results in the production of an FIO report or the
    issuance of a citation.19   As the available data did not reflect
    18Of all the traffic citations the officers issued in
    Boston, 56.59 percent were issued to Black drivers. The expert
    compared this to a benchmark population for all of Boston, in
    which, in 2010, 24.38 percent of residents were Black. In the
    absence of racial profiling, the odds of this disparity in
    citations occurring randomly is less than one in 100,000.
    According to the expert's analysis, this data would support a
    statistically significant inference of discrimination in
    citations even if fifty percent of the drivers in Boston were
    Black.
    19In 2005, certain police departments, including the Boston
    police department, were required to collect data on "all traffic
    stops, including those not resulting in a warning, citation or
    arrest," for a period of one year after an initial review of
    citation data suggested they had engaged in racial or gender
    profiling. See St. 2000, c. 228, § 10; Boston Police
    Patrolmen's Ass'n, Inc. v. Police Dep't of Boston, 
    446 Mass. 46
    ,
    48 (2006) ("249 of 366 Massachusetts law enforcement agencies
    appeared to have engaged in racial or gender profiling"). This
    case, however, arose more than a decade after the end of the
    statutory mandate to collect this "all stops" data. It appears
    that no such data were available for the relevant time period
    and the particular officers who stopped the defendant.
    40
    the "larger, unknown total number of motor vehicle stops," the
    judge found that it "f[e]ll well short" of the data analyzed in
    State v. Soto, 
    324 N.J. Super. 66
     (1996), a New Jersey case we
    cited approvingly in Lora, 451 Mass. at 440-441, where the
    defendants had access to a police database of all stops made on
    the relevant roadway.     See Soto, supra at 69.   The judge also
    concluded that, as compared to the observational data presented
    in Soto, the census data here were an unreliable benchmark for
    the demographics of motorists on the roads patrolled by the
    officers without some "independent verification" that the data
    were reflective of the population of relevant motorists.     See
    Lora, 451 Mass. at 444.
    The judge erred in discounting both aspects of the
    defendant's data.   With regard to benchmark data, Lora,
    451 Mass. at 443-444, does not stand for the categorical rule
    that census data is never an appropriate proxy for the actual
    population of motorists on the relevant roadway.     In Lora,
    supra, we concluded that it was inappropriate to use census data
    from the town of Auburn as a benchmark for the demographics of
    drivers passing through Auburn on a major interstate highway; we
    noted that, of the fifty-two motorists ticketed by the officer
    in question on that stretch of highway, ninety percent were not
    residents of Auburn.    Here, where the relevant roadways are
    urban residential roads, as opposed to an interstate highway, we
    41
    have much greater confidence in the accuracy of residential
    demographics from United States Census data as representative of
    those making use of the residential roads.     Moreover, in this
    case, the defendant's expert statistician took pains to account
    in sophisticated ways for the possible presence of nonresident
    drivers.   This benchmarking data was more than sufficiently
    reliable to support a claim of selective enforcement and racial
    discrimination in making the traffic stop, under the defendant's
    then-existing burden.   The judge abused his discretion in
    rejecting it as insufficient.
    The same is the case with respect to the defendant's use of
    data on citations and motor vehicle stop-generated FIOs.     If, as
    here, the data on the officers' citations and motor vehicle FIOs
    show that these interactions are racially skewed, it is a
    reasonable inference that the rate at which those officers'
    stops of drivers of a particular race is similarly
    disproportionate to stops of other drivers.    In declining to
    take this inferential step, the judge erred.     His insistence
    that this inference had to be all but unescapable, and not
    merely reasonable, was an abuse of discretion.
    In support of his motion to suppress, the defendant
    submitted the expert's statistical analysis, which established a
    reasonable inference of impermissible discrimination.     Having
    made this implicit determination, the judge properly decided to
    42
    conduct an evidentiary hearing, where the burden was on the
    Commonwealth to rebut the reasonable inference established by
    the defendant.   See Lora, 451 Mass. at 438.   The Commonwealth
    offered the testimony of the arresting officers, who testified
    that they did not conduct the stop due to the defendant's race.
    Because implicit bias may lead an officer to make race-based
    traffic stops without conscious awareness of having done so,
    such a simple denial is insufficient to rebut the reasonable
    inference.   See Commonwealth v. McCowen, 
    458 Mass. 461
    , 499
    (2010) (Ireland, J., concurring) ("people possess [implicit
    racial biases] over which they have little or no conscious,
    intentional control" [citation omitted]); Givelber, The
    Application of Equal Protection Principles to Selective
    Enforcement of the Criminal Law, 1973 U. Ill. L.F. 88, 114
    (1973) (where "there is no legitimate justification for a given
    instance of selective enforcement, then the unjust treatment by
    the prosecutor should violate the equal protection clause
    regardless of whether the prosecutor knew he was abusing his
    office").
    The Commonwealth did not call an expert or present any
    statistical evidence.   As discussed, supra, the prosecutor's
    primary argument was that analyses based on FIOs and United
    States Census tracts were unreliable.   Additionally, the
    Commonwealth argued that Black drivers were overrepresented in
    43
    the statistical data because Black individuals commit more
    crimes.     "[W]e are unaware of any reliable study establishing
    that motor vehicle violations are more frequently committed by
    any particular race of driver."     Lora, 451 Mass. at 442 n.30,
    citing Soto, 324 N.J. Super. at 74.     Thus, the Commonwealth
    clearly failed to rebut the reasonable inference of
    impermissible discrimination raised by the defendant, and the
    denial of the motion to suppress must be reversed.20
    f.     The potential for widely available statistics.   In
    2019, the Legislature enacted G. L. c. 90, § 63, see St. 2019,
    c. 122, § 10, which requires, on an ongoing basis, an annual
    report of consolidated traffic stop data by town, and
    consolidation of that data to the registry of motor vehicles.      A
    bill currently under consideration by the Legislature would
    repeal G. L. c. 90, § 63, and instead would require law
    enforcement officers to collect more comprehensive data on each
    traffic stop they make, such that data by officer would be
    available to the municipality as well as the registry of motor
    vehicles.    See 2020 Senate Doc. No. 2820, § 52.   This bill would
    require all officers, not only those in police departments found
    to have engaged in racial profiling, to record information on
    20Because of this conclusion, we need not reach the
    defendant's contention that the subsequent inventory search was
    unconstitutional.
    44
    any traffic stop (not just those resulting in an issued
    citation), including the reason for the stop and the age, race,
    ethnicity, and gender of the individual stopped, among other
    information.     See 2020 Senate Doc. No. 2820, § 52 (d) (1).
    Further, the bill would require each municipal law enforcement
    department semiannually to publish a statistical analysis of the
    department's stop and search data.    See 2020 Senate Doc. No.
    2820, § 52 (d) (5).    If enacted, the bill likely would enable
    defendants to access publicly available, department-wide data on
    the demographics of all traffic stops, by officer, in the
    relevant municipality, and would provide a plethora of relevant
    data available to support (or weaken) equal protection claims.
    The House of Representatives, however, recently passed a revised
    version of the bill that completely omits the provisions
    requiring collection of data on traffic stops.    See 2020 House
    Doc. No. 4860.
    We urge the Legislature to require the collection and
    analysis of officer-specific data, such as set forth in 2020
    Senate Doc. No. 2820.     This type of data collection would help
    protect drivers from racially discriminatory traffic stops, and
    also would protect police officers who do not engage in such
    discriminatory stops.
    4.   Conclusion.     The matter is remanded to the county
    court, where an order shall issue reversing the Superior Court
    45
    judge's order denying the defendant's motion to suppress, and
    remanding the matter to the Superior Court for such other
    proceedings as are necessary, consistent with this decision.
    So ordered.
    GANTS, C.J. (concurring).   I agree with the court that a
    motor vehicle stop motivated to any extent by the race of the
    driver or passenger (or by the driver's or passenger's
    membership in any suspect class) violates our guarantee of equal
    protection under arts. 1 and 10 of the Massachusetts Declaration
    of Rights, and that the fruits of any such unconstitutional stop
    must be suppressed.   See ante at   .   I also agree with the
    court that a reasonable inference of racial profiling does not
    require statistical evidence but may instead be based on the
    totality of evidence surrounding the stop.     See ante at       .
    I agree with Justice Budd's concurrence that a motor
    vehicle stop that is found unconstitutional as a violation of
    equal protection would also be an unreasonable stop in violation
    of art. 14 of our Declaration of Rights.     See post at     .
    Specifically, I agree that a stop that is motivated by the race
    of the driver is not constitutionally reasonable.    I note that,
    despite our authorization rule, we have long considered the
    motivation of the law enforcement officer who conducts a search
    where it is claimed to be an inventory or administrative search;
    if the officer's motivation is investigative and the search is
    not lawful as an investigative search, the search is
    unconstitutional and the fruits of the search are suppressed.
    See Commonwealth v. Rostad, 
    410 Mass. 618
    , 620 (1991) (inventory
    search "may not be allowed to become a cover or pretext for an
    2
    investigative search"); Commonwealth v. Eagleton, 
    402 Mass. 199
    ,
    207 n.13 (1988) ("An administrative search may not be used as a
    subterfuge to avoid the burden of establishing probable cause to
    support a criminal investigative search").    These cases
    demonstrate that courts can, and do, successfully explore the
    true motivation of an officer in examining the lawfulness of a
    search.
    I do not join Justice Budd's concurrence because I would
    not declare in this case that any pretextual motor vehicle stop,
    even where the pretext is not based on the membership of the
    driver or passenger in a suspect class, is also a violation of
    art. 14.    See post at   .   Here, the only claim of pretext is
    based on the race of the driver; we need not decide in this case
    whether to extend the reach of our opinion to apply to all
    pretexts.
    In closing, I note that, despite our jurisprudential
    differences reflected in the various opinions in this case, the
    court is unanimous in concluding that a motor vehicle stop that
    arises from racial profiling is unconstitutional, that the
    burden placed on defendants in criminal cases to establish an
    inference of racial profiling need not be based on statistical
    evidence, that the burden may be met by inferences arising from
    the totality of the evidence of the stop, and that the burden
    should not be so high that a remedy is, in practice, mostly
    3
    illusory.    In short, it is the unanimous view of this court that
    the prohibition against racial profiling must be given teeth and
    that judges should suppress evidence where a motor vehicle stop
    is motivated, even in part, by the race of the driver or
    passenger.
    BUDD, J. (concurring, with whom Lenk, J., joins).      Racial
    profiling in traffic stops has proven to be an intractable
    problem, the devastating consequences of which members of this
    court have recognized for many years.   See Commonwealth v.
    Buckley, 
    478 Mass. 861
    , 871 (2018); id. at 876 (Budd, J.,
    concurring); Commonwealth v. Lora, 
    451 Mass. 425
    , 449 (2008)
    (Ireland, J., concurring); Commonwealth v. Feyenord, 
    445 Mass. 72
    , 88 (2005) (Greaney, J., concurring), cert. denied, 
    546 U.S. 1187
     (2006); Commonwealth v. Gonsalves, 
    429 Mass. 658
    , 670
    (1999) (Ireland, J., concurring).   Today, the court expressly
    acknowledges that discriminatory motor vehicle stops are
    profoundly harmful to persons and communities of color, and
    adjusts our existing equal protection framework for addressing
    such stops.
    I agree that the statistical evidence provided by this
    defendant was more than sufficient to show that the traffic stop
    was racially motivated under the requirements set forth in Lora,
    supra at 436-438.   I also agree that Lora inadvertently set the
    bar too high for defendants to meet their initial burden of
    raising an inference of racial discrimination.   However, the
    problem of racially discriminatory motor vehicle stops is a
    systemic product of the criminal justice system as it currently
    functions -- it thus requires a systemic solution.
    2
    In looking at the issue more broadly, it is clear that the
    root of the problem is pretextual stops, which allow police to
    utilize traffic stops as a means to act on hunches that are
    unsupported by reasonable suspicion and often based on the race
    of the driver.     I conclude that pretextual stops are
    unconstitutional under art. 14 of the Massachusetts Declaration
    of Rights1 because they allow for the investigatory stop of an
    individual without reasonable suspicion of the crime sought to
    be investigated.     For that reason, I would prohibit all
    pretextual stops.2
    1 Article 14 of the Massachusetts Declaration of Rights
    states in pertinent part: "Every subject has a right to be
    secure from all unreasonable searches, and seizures, of his
    person, his houses, his papers, and all his possessions."
    2 The defendant has not challenged the stop under art. 14;
    however, as we declined to evaluate the art. 14 standard for
    determining reasonableness of a motor vehicle stop (i.e., the
    authorization test) less than two years ago in Commonwealth v.
    Buckley, 
    478 Mass. 861
    , 866 (2018), it is understandable that
    the defendant here did not raise what reasonably might have
    appeared to be a futile argument. See generally Commonwealth v.
    Vasquez, 
    456 Mass. 350
    , 358-359 (2010). In any case, the
    constitutionality of pretextual stops was well and fully briefed
    by both parties and by amici in Buckley. The fundamental points
    I raise today were laid out before us then, together with
    citations to dozens of studies, law review articles, and
    statistical reports relating to racial profiling in traffic
    stops and pretextual stops. See, e.g., Harris, The Stories, the
    Statistics, and the Law: Why "Driving While Black" Matters, 
    84 Minn. L. Rev. 265
    , 273-274 (1999); Sklansky, Traffic Stops,
    Minority Motorists, and the Fourth Amendment, 
    1997 Sup. Ct. Rev. 271
    , 312-316 (1997); Davis, Race, Cops, and Traffic Stops, 
    51 U. Miami L. Rev. 425
    , 432 (1997).
    3
    The court seeks to solve the problem of race-based traffic
    stops by improving upon the traditional equal protection
    analysis.   However, the ability to challenge alleged race-based
    stops on both equal protection and art. 14 grounds would enhance
    the ability of people of color to pursue an effective remedy
    against discrimination.   That is, I fear that the efficacy of
    the equal protection test remains blunted by the ability of
    police to use pretextual stops to disguise stops based on racial
    bias.    The long, difficult history of racial discrimination in
    law enforcement demonstrates that, without more, making it
    easier for defendants to raise an inference that race was the
    basis for their stops in discrete cases will not be enough to
    dismantle the practice of racial profiling.    Acknowledging the
    unconstitutionality of pretextual stops has the added systemic
    benefit of removing, in the first instance, the means by which
    racial profiling is accomplished.
    1.    Pretext and the systemic problem of racially motivated
    motor vehicle stops.    Under the authorization test, a traffic
    stop is valid "so long as the police are doing no more than they
    As is obvious from this concurrence, since Buckley was
    decided I have changed my view that it is "unworkable" to shift
    our jurisprudence away from the authorization test announced in
    Commonwealth v. Santana, 
    420 Mass. 205
    , 208-209 (1995).
    Buckley, 478 Mass. at 876 (Budd, J., concurring). See
    Commonwealth v. Larose, 
    483 Mass. 323
    , 336 (2019) (Lenk, J.,
    concurring).
    4
    are legally permitted and objectively authorized to do."
    Buckley, 478 Mass. at 865, quoting Commonwealth v. Santana, 
    420 Mass. 205
    , 209 (1995).3   In practice, this means that an officer
    is permitted to stop a vehicle so long as he or she has observed
    a motor vehicle violation (or otherwise has either probable
    cause or reasonable suspicion to believe that one was
    committed).   See Commonwealth v. Rodriguez, 
    472 Mass. 767
    , 774
    (2015).   The authorization test therefore permits police to
    perform pretextual motor vehicle stops, i.e., stops ostensibly
    made on the basis of a motor vehicle violation, but actually
    made for the purpose of investigating suspicions of unrelated
    criminal activity.   See State v. Ladson, 
    138 Wash. 2d 343
    , 349
    (1999) ("[T]he essence of [a] pretextual traffic stop is that
    the police are pulling over a citizen, not to enforce the
    traffic code, but to conduct a criminal investigation unrelated
    to the driving.   Therefore the reasonable articulable suspicion
    that a traffic infraction has occurred which justifies an
    exception to the warrant requirement for an ordinary traffic
    stop does not justify a stop for criminal investigation").
    3 As discussed in more detail infra, this is the same
    approach that the United States Supreme Court adopted with
    regard to the Fourth Amendment to the United States
    Constitution. See Whren v. United States, 
    517 U.S. 806
    , 813
    (1996).
    5
    "[D]riving is an indispensable part of modern life."
    Commonwealth v. McCarthy, 
    484 Mass. 493
    , 507 (2020).    In
    addition, our traffic code is comprehensive and detailed.4      As a
    result, "[v]ery few drivers can traverse any appreciable
    distance without violating some traffic regulation" (quotation
    and citation omitted).    LaFave, The "Routine Traffic Stop" from
    Start to Finish:    Too Much "Routine," Not Enough Fourth
    Amendment, 
    102 Mich. L. Rev. 1843
    , 1853 (2004).    See Caldwell v.
    State, 
    780 A.2d 1037
    , 1048 n.25 (Del. 2001), quoting Whitehead
    v. State, 
    116 Md. App. 497
    , 507 n.4 (1997) ("studies conducted
    on a stretch of Interstate 95 between Baltimore and Delaware
    revealed that 93% of all drivers committed some type of traffic
    violation").     See also Caldwell, 
    supra,
     citing Harris, Whren v.
    United States:    Pretextual Traffic Stops and "Driving While
    Black," The Champion (March 1997), at 41; State v. Soto, 
    324 N.J. Super. 66
    , 70 (1996) (observational study over four days on
    three-exit stretch of New Jersey turnpike showed 98.1 percent of
    2,096 observed vehicles exceeded speed limit).
    4 Our traffic code regulates nearly every aspect of
    operating a motor vehicle, from obvious moving violations such
    as speeding and failing to stop at red lights, see G. L. c. 90,
    § 17; G. L. c. 89, § 9, to less conspicuous moving violations
    such as failing to come to a full stop at a stop sign, see G. L.
    c. 89, § 9, or crossing marked lanes, see G. L. c. 89, § 4A, and
    subtle equipment deficiencies including window tint, lights, and
    passenger restraints, see G. L. c. 90, §§ 7, 7AA, 9D, 13A.
    6
    Pretextual stops are an attractive investigatory technique
    because a traffic stop can lead to a multitude of additional
    investigatory actions.    See, e.g., Commonwealth v. Goncalves-
    Mendez, 
    484 Mass. 80
    , 81 (2020) (traffic stop led to discovery
    of bench warrant, arrest, impoundment, and inventory search);
    Commonwealth v. Amado, 
    474 Mass. 147
    , 150 (2016) (exit order and
    patfrisk during traffic stop).    See also Carbado, From Stopping
    Black People to Killing Black People:   The Fourth Amendment
    Pathways to Police Violence, 
    105 Cal. L. Rev. 125
    , 151 (2017)
    (Carbado) (describing "the ways in which traffic stops function
    as gateways to more intrusive searches and seizures").    Thus,
    law enforcement officers have powerful incentives to use traffic
    violations as a pretext to conduct investigatory stops.
    It is no secret that this combination of factors has
    allowed racially motivated motor vehicle stops to flourish.
    See, e.g., Carbado, supra at 129, 152 (describing "de facto
    legalization" of racial profiling via cases "in which Fourth
    Amendment law turns a blind eye to racial profiling or makes it
    easy for the police to get away with the practice," including
    Whren v. United States, 
    517 U.S. 806
     [1996]); Capers, Rethinking
    the Fourth Amendment:    Race, Citizenship, and the Equality
    Principle, 
    46 Harv. C.R.-C.L. L. Rev. 1
    , 34 (2011) (Capers)
    ("Given that drivers routinely violate traffic laws . . .
    [Whren] virtually gives officers carte blanche to engage in
    7
    race-based pretextual stops.    And if the driving while [B]lack
    statistics . . . show anything, this is what officers do");
    Johnson, How Racial Profiling in America Became the Law of the
    Land:   United States v. Brignoni-Ponce and Whren v. United
    States and the Need for Truly Rebellious Lawyering, 
    98 Geo. L.J. 1005
    , 1069 (2010) (summarizing critiques of Whren); Glasser,
    American Drug Laws:    The New Jim Crow, 
    63 Alb. L. Rev. 703
    , 708
    (2000) ("We are talking about a national policy which is
    training police all over this country to use traffic violations,
    which everyone commits the minute you get into your car, as an
    excuse to stop and search people with dark skin").
    If "systemic racism" is defined as a "system[ or]
    institution[] that produce[s] racially disparate outcomes,
    regardless of the intentions of the people who work within
    [it]," then our criminal justice system is rife with it.     See
    There's Overwhelming Evidence That the Criminal Justice System
    is Racist.    Here's the Proof, Washington Post, June 10, 2020,
    https://www.washingtonpost.com/graphics/2020/opinions
    /systemic-racism-police-evidence-criminal-justice-system/
    [https://perma.cc/8YLM-KWSY].    As applicable here, allowing
    ostensibly routine traffic stops produces racially disparate
    outcomes.    In order adequately to address this systemic problem,
    we must take a clear-eyed look at pretextual stops.
    8
    2.   The unconstitutionality of pretextual stops.   The
    requirement that government searches or seizures require a
    warrant supported by probable cause is the touchstone of art.
    14's protection against arbitrary searches and seizures.     See
    Commonwealth v. Bostock, 
    450 Mass. 616
    , 623–624 (2008), quoting
    Commonwealth v. Cast, 
    407 Mass. 891
    , 901 (1990) ("It is a
    cardinal principle that searches conducted outside the judicial
    process, without prior approval by judge or magistrate, are per
    se unreasonable [under both the Fourth Amendment to the United
    States Constitution and art. 14] -- subject only to a few
    specifically established and well-delineated exceptions"
    [quotations omitted]).   See also Commonwealth v. Antobenedetto,
    
    366 Mass. 51
    , 57 (1974) ("under the Fourth Amendment searches
    conducted without valid warrants are presumed in the first
    instance to be unreasonable.   It is then up to the government to
    show that a particular search falls within a narrow class of
    permissible exceptions").
    The various exceptions to the warrant requirement, and the
    exceptions to those exceptions, make up our search and seizure
    jurisprudence.   We carefully scrutinize warrantless actions
    taken by law enforcement, recognizing that, where the power of
    police to conduct warrantless searches or seizures is "too
    permeating," it necessarily is "too susceptible to being
    exercised arbitrarily by law enforcement -- precisely the type
    9
    of governmental conduct against which the framers sought to
    guard" (quotations and citation omitted).   Commonwealth v.
    Almonor, 
    482 Mass. 35
    , 47 (2019).
    Although a motor vehicle stop constitutes a seizure for the
    purposes of art. 14, we have held that an investigatory stop of
    a vehicle, like a Terry-type stop of a pedestrian, does not
    require a warrant because it is by its nature a threshold, on-
    the-spot inquiry that is less intrusive than an arrest.     See
    Commonwealth v. Willis, 
    415 Mass. 814
    , 818 (1993); Commonwealth
    v. Bacon, 
    381 Mass. 642
    , 643 (1980).   See generally Terry v.
    Ohio, 
    392 U.S. 1
    , 20 (1968).   Motorists nevertheless are
    ostensibly protected from unreasonable searches and seizures
    because, ordinarily, to pass constitutional muster under art. 14
    a warrantless investigatory stop (seizure) of a motor vehicle
    and its occupants requires "reasonable suspicion, based on
    specific, articulable facts and inferences therefrom, that an
    occupant . . . had committed, was committing, or was about to
    commit a crime" (citation omitted).    Commonwealth v. Manha, 
    479 Mass. 44
    , 46 (2018).   However, the authorization test strips
    away that protection because it substitutes reasonable suspicion
    of a traffic violation for reasonable suspicion of the separate
    10
    criminal conduct that the officer seeks to investigate.5    That
    is, as discussed supra, the rule permits officers to make an
    investigatory stop without the reasonable suspicion normally
    required as long as they have observed a traffic violation that
    can be used as pretext for the stop.
    In practice, if an officer wants to investigate a hunch
    about suspected criminal activity in connection with a
    particular motor vehicle, he or she has two options.     If the
    officer has reasonable suspicion of the suspected criminal
    activity, he or she may conduct an investigatory stop.     If not,
    the officer can simply wait until the driver commits a traffic
    violation, stop the vehicle based on that violation, and then
    attempt to get more information during the stop to corroborate
    that hunch.   See Commonwealth v. Cordero, 
    477 Mass. 237
    , 241
    (2017) ("A routine traffic stop may not last longer than
    reasonably necessary to effectuate the purpose of the stop"
    [quotations and citation omitted]).
    The problem with the authorization test is that it
    automatically categorizes any stop preceded by a traffic
    violation as "authorized," and therefore presumptively
    reasonable, regardless of the actual motivation for the stop.
    5 It is worth noting that many types of traffic violations
    are civil in nature, not criminal. See, e.g., Commonwealth v.
    Rodriguez, 
    472 Mass. 767
    , 770-771 (2015).
    11
    See Buckley, 478 Mass. at 869.   Because the test predetermines
    the outcome of any claim of unreasonableness for the purposes of
    art. 14, no actual reasonableness analysis is required (or
    allowed).   Incredibly, this is true even if the motive is
    unlawful.   See Santana, 420 Mass. at 209 ("Under [the
    authorization] test, it is irrelevant whether a reasonable
    police officer would have made the stop but for the unlawful
    motive" [citations omitted]).    In this case, for example, the
    officers discovered the inspection sticker violation prior to
    making the stop.6   Pursuant to Santana, the stop would likely be
    considered constitutionally reasonable under art. 14, even
    though the court concludes, and I agree, that the defendant
    successfully showed that it was racially motivated.    Such an
    outcome clearly is indefensible -- it hardly can be argued that
    a motor vehicle stop predicated on one's race is reasonable in
    any circumstance.
    6 As Justice Cypher notes, the stop here was not based on a
    moving or equipment violation. Instead, the officers discovered
    the inspection sticker violation only after deciding to check
    the vehicle's license plate number in a database. However, just
    like a traffic stop based on an observed motor vehicle
    violation, a traffic stop resulting from a plate check is a
    seizure pursuant to art. 14 and the Fourth Amendment. See
    generally Buckley, 478 Mass. at 865, quoting Rodriguez, 472
    Mass. at 773 ("Because '[a] police stop of a moving automobile
    constitutes a seizure,' . . . that stop must be reasonable in
    order to be valid under the Fourth Amendment and art. 14").
    12
    The authorization test's reflexive and inflexible rule is
    at odds with the origins and purpose of art. 14.     Our cases
    acknowledge that the framers "wrote constitutional search
    protections in 'response to the reviled general warrants and
    writs of assistance of the colonial era, which allowed British
    officers to rummage through homes in an unrestrained search for
    evidence of criminal activity'" (quotations omitted).     McCarthy,
    484 Mass. at 498-499, quoting Carpenter v. United States, 
    138 S. Ct. 2206
    , 2213 (2018).   See Commonwealth v. Blood, 
    400 Mass. 61
    ,
    71 (1987) (adoption of art. 14 motivated by "[o]pposition to the
    search policies . . . which allowed officers of the crown to
    search, at their will, wherever they suspected [evidence of
    criminal activity] to be" [citation omitted]).     The general
    warrant epitomized the type of government intrusion that is
    intolerable under our Constitution:    invasions of privacy which
    technically are cloaked in legal authorization but are exercised
    in an arbitrary or unfair manner.     Given the broad discretion
    afforded to police officers by way of the authorization test and
    the ample opportunities they have to exercise that discretion,
    pretextual investigatory stops are comparable to the general
    warrants that were the impetus for art. 14.     And like general
    warrants, the fact that pretextual investigative stops are
    legally "authorized" does not make them tolerable.     See Blood,
    
    supra.
    13
    Notably, the nearly unlimited discretion granted to law
    enforcement officers to make pretextual traffic stops is an
    anomaly under our art. 14 jurisprudence.   For example, we do not
    permit investigatory stops of pedestrians unless police have
    reasonable suspicion "that a person has committed, is
    committing, or is about to commit a crime," based on "specific
    and articulable facts" (quotations and citations omitted).       See
    Bacon, 
    381 Mass. at 643
    .   "A mere 'hunch'" and "[s]imple good
    faith on the part of the officer" are not enough to justify an
    investigatory stop of a pedestrian (citation omitted).     
    Id.
        Yet
    under the authorization test, the moment a driver commits (or
    the police discover) a motor vehicle violation, the occupants of
    a vehicle are exposed to the very same investigatory stops we
    rightly prohibit when they are on foot -- stops based on
    unsupported hunches, discrimination, harassment, or any other
    purpose lacking reasonable articulable suspicion of criminal
    activity.   See United States v. Botero-Ospina, 
    71 F.3d 783
    , 790
    (10th Cir. 1995), cert. denied, 
    518 U.S. 1007
     (1996) (Seymour,
    C.J., dissenting) ("Given the multitude of applicable traffic
    and equipment regulations in any jurisdiction . . . upholding a
    stop on the basis of a regulation seldom enforced opens the door
    to the arbitrary exercise of police discretion condemned in
    Terry and its progeny").
    14
    We also previously have recognized, and limited, the
    discretion law enforcement officers may exercise in the context
    of exit orders during motor vehicle stops.   In Gonsalves, 429
    Mass. at 660, 662, we concluded that although the Supreme Court
    held that the Fourth Amendment allows a police officer to issue
    exit orders during any lawfully executed traffic stop, see
    Pennsylvania v. Mimms, 
    434 U.S. 106
    , 111 (1977) (drivers),
    Maryland v. Wilson, 
    519 U.S. 408
    , 415 (1997) (passengers), art.
    14 prohibits the practice unless the officer has a reasonable
    belief that the officer's safety, or the safety of others, is
    threatened.   We rejected the Federal rule that "permit[s]
    automobile exit orders during any traffic stop, but which do not
    require that such orders be given," because we recognized that
    this unfettered discretion is "a clear invitation to
    discriminatory enforcement of the rule" (emphasis added).     See
    Gonsalves, supra at 664.   We further noted that "[c]itizens do
    not expect that police officers handling a routine traffic
    violation will engage, in the absence of justification, in
    stalling tactics, obfuscation, strained conversation, or
    unjustified exit orders, to prolong the seizure in the hope
    that, sooner or later, the stop might yield up some evidence of
    an arrestable crime."   Id. at 663.
    Thus, we take care to protect pedestrians from
    investigatory stops without reasonable suspicion, and drivers
    15
    from being unduly detained by an exit order during a traffic
    stop barring safety concerns.   However, the authorization test
    has created a markedly different standard when it comes to
    initiating a motor vehicle stop, as it provides officers with
    wide discretion to substitute pretext for reasonable suspicion
    as an investigatory tactic in the hopes that a hunch regarding
    criminal activity might bear fruit.
    The reasonable suspicion requirement is the linchpin of a
    valid investigatory stop under art. 14.   Using pretext to
    circumvent it breaks with our fundamental rules of search and
    seizure.   As observed by the Supreme Court of Washington:
    "[T]he problem with a pretextual traffic stop is that it is
    a search or seizure which cannot be constitutionally
    justified for its true reason (i.e., speculative criminal
    investigation), but only for some other reason (i.e., to
    enforce traffic code) which is at once lawfully sufficient
    but not the real reason. Pretext is therefore a triumph of
    form over substance; a triumph of expediency at the expense
    of reason. But it is against the standard of
    reasonableness which our constitution measures exceptions
    to the general rule, which forbids search or seizure absent
    a warrant. Pretext is result without reason."
    Ladson, 
    138 Wash. 2d at 351
    .    If art. 14 is meant to protect
    individuals against the arbitrary exercise of power by agents of
    the Commonwealth, pretextual investigatory stops are in direct
    conflict with this objective.   As the authorization test creates
    a gaping hole in the foundational principle that a stop must be
    16
    backed by reasonable suspicion, I would abandon it.7    Instead, I
    would hold that a traffic violation cannot replace the
    reasonable suspicion required to make an investigatory stop
    under art. 14.
    3.   Detecting pretext:   the "would have" test.   Identifying
    a pretextual traffic stop may not be a straightforward task, but
    other courts and commentators have outlined what I conclude is a
    workable test.   Prior to Whren, many State courts, including
    courts in Arkansas, Illinois, Iowa, New York, Ohio, and
    Washington, employed various forms of the "reasonable officer,"
    or "would have," test to determine the validity of a stop.     See
    State v. Brown, 
    930 N.W.2d 840
    , 902 (Iowa 2019) (Appel, J.,
    dissenting) (collecting cases).   Although there are varying
    versions of that test, their common feature is that an alleged
    pretextual stop is valid only if a reasonable police officer
    "would have" made the stop in the absence of an ulterior motive;
    that is, a reasonable officer would have made the stop solely to
    enforce the motor vehicle infraction.
    7 Although the court notes that after Whren was decided, a
    majority of States adopted a version of the authorization test,
    ante at    , it perhaps goes without saying that, regardless of
    what other jurisdictions have to say about their State
    constitutions, "ultimately we must accept responsibility for
    interpreting our own Constitution as text, precedent, and
    principle seem to us to require." Planned Parenthood League of
    Mass., Inc. v. Attorney Gen., 
    424 Mass. 586
    , 590 (1997).
    17
    A version of the "would have" test has been adopted in
    Washington and New Mexico.   See State v. Arreola, 
    176 Wash. 2d 284
    , 298 (2012).    However, it has been criticized as requiring a
    judge to discern an officer's subjective motives.    See Whren,
    
    517 U.S. at 815
    ; Buckley, 478 Mass. at 867-868.     See also Brown,
    930 N.W.2d at 869 n.16 (Cady, C.J., dissenting) ("despite
    adopting the ['would have'] test, Washington courts may be
    reluctant to find that a police officer is lying about their
    motivations or 'have difficulty discerning pretextual behavior
    without an admission'" [citation omitted]); Lawton, The Road to
    Whren and Beyond:   Does the "Would Have" Test Work?, 
    57 DePaul L. Rev. 917
    , 935-936, 956-957 (2008).
    Under my proposed formulation of the test, the defendant
    need not prove, and the motion judge is not required to
    determine, the officer's true motive.    Instead, the question
    would be whether a reasonable officer would have made the stop
    solely for the purpose of traffic enforcement.8   See State v.
    8 Although the court foresees difficulty in determining the
    characteristics of a reasonable officer, this standard is
    applied successfully in other circumstances. See Commonwealth
    v. Barreto, 
    483 Mass. 716
    , 722 (2019), quoting Commonwealth v.
    Gonsalves, 
    429 Mass. 658
    , 661 (1999) (exit order based on safety
    concerns is justified where "a reasonably prudent [person] in
    the [officer's] position would be warranted in the belief that
    the safety of the police or that of other persons was in
    danger"); LaChance v. Commissioner of Correction, 
    463 Mass. 767
    ,
    777-778 (2012), quoting Longval v. Commissioner of Correction,
    
    448 Mass. 412
    , 419 (2007) (qualified immunity standard asks
    18
    Sullivan, 
    340 Ark. 315
    , 318 (2000), cert. granted, judgment
    rev'd, 
    532 U.S. 769
     (2001) ("Claims of pretextual arrest raise a
    unique problem in law -- deciding whether an ulterior motive
    prompted an arrest which otherwise would not have occurred.
    Confusion can be avoided by applying a 'but for' approach, that
    is, would the arrest not have occurred but for the other,
    typically, the more serious crime. . . .    The question then
    becomes whether [the defendant] would have been arrested simply
    for" purported traffic violation).    See also State v. Ochoa, 
    146 N.M. 32
    , 44 (2008); Abramovsky & Edelstein, Pretext Stops and
    Racial Profiling After Whren v. United States:    The New York and
    New Jersey Responses Compared, 
    63 Alb. L. Rev. 725
    , 734-735
    (2000) (describing objective circumstantial factors New York
    courts considered when identifying pretext).
    Like the revised equal protection test announced by the
    court today, this version of the "would have" test allows a
    defendant to raise an inference that a stop was a pretext based
    on the circumstances of the stop.    It would allow for
    consideration of the same factors and likewise would operate
    under a burden-shifting framework.    See Ochoa, 146 N.M. at 44
    (listing factors).   See also State v. Heath, 
    929 A.2d 390
    , 403
    whether "it would be clear to a reasonable officer that his
    conduct was unlawful in the situation he confronted").
    19
    (Del. Super. Ct. 2006).     The mechanics of this test to detect
    pretext, then, are very similar to the one the court presents to
    detect racial profiling.9
    Importantly, because all underlying motives lacking
    reasonable suspicion would be considered unreasonable under art.
    14, and therefore impermissible,10 this version of the test would
    avoid the fraught inquiry into whether an officer was in fact
    motivated by racial bias.11    The advantage of an objective "would
    9 These similarities are not surprising, because many of the
    factors the court identifies as relevant to the totality of the
    circumstances analysis, ante at notes 9 and 10, are drawn from
    cases applying other jurisdictions' versions of the "would have"
    test. See State vs. Deleon, N.M. Ct. App., No. 30,813 at 4-5
    (Feb. 14, 2013); People v. Roundtree, 
    234 A.D. 2d 612
    , 613 (N.Y.
    1996); State v. Arreola, 
    176 Wash. 2d 284
    , 301 (2012) (Chambers,
    J., dissenting); State v. Snapp, 
    174 Wash. 2d 177
    , 200-201
    (2012).
    10 The court cautions that analyzing pretextual stops under
    art. 14 would confuse the inquiry into whether a stop is
    unlawful because "our jurisprudence on search and seizure
    provides no guidance regarding which officer motivations render
    unreasonable an otherwise permissible traffic stop." Ante at
    . However, our art. 14 and Fourth Amendment jurisprudence is
    quite clear that an "unlawful" search or seizure is an
    unreasonable one -- that is, any motive lacking reasonable
    suspicion of criminal activity would render a pretextual stop
    unreasonable. See generally Commonwealth v. Alvarado, 
    423 Mass. 266
    , 268 (1996); Commonwealth v. Bacon, 
    381 Mass. 642
    , 643
    (1980).
    11The court posits that, like other versions of the "would
    have" test, this one inevitably would lead to an examination of
    subjective motives. Ante at     . I do not agree with this
    assessment; I conclude that much can be learned from the
    experiences in Washington and New Mexico where each employed an
    explicitly subjective test. At any rate, as the court
    20
    have" test is that whatever purportedly race-neutral
    justification the Commonwealth might proffer as the true motive
    for the stop would be irrelevant to the question whether a
    reasonable officer would have made the stop as a traffic stop,
    absent any motive other than traffic enforcement.   Thus, the
    Commonwealth would not be able to justify a pretextual stop
    under the "would have" test I propose simply by substituting a
    facially neutral motive for the alleged race-based motive.12
    We have remarked that, generally, "police conduct is to be
    judged 'under a standard of objective reasonableness without
    acknowledges, those subjective inquiries are "quite similar" to
    the court's equal protection analysis, which requires a
    subjective determination of whether racial bias was the true
    motive for the stop. Ante at     . Even assuming for the sake
    of argument that the "would have" test necessarily entails a
    subjective inquiry, the added benefits of undoing the
    authorization test, described infra, would justify the potential
    difficulty of formulating a workable test to identify pretext.
    12The court points out that, like the revised equal
    protection test, this formulation of the "would have" test would
    not eliminate issues of less than candid police officers, or of
    judges reluctant to reject an officer's proffered motive for a
    stop. I am under no illusions that an art. 14 approach is
    "magic." See ante at     . Righting the wrongs of the racism
    that have been plaguing this country since its inception has
    been slow-going -- some might say glacial. Although I conclude
    that the approach I suggest could be part of a larger solution,
    it will take much more than any single judicial pronouncement
    (or concurrence) to increase the pace of progress. Despite any
    perceived flaws in my suggested approach, I conclude that
    defendants who pursue claims of racial discrimination in
    connection with a traffic stop should be entitled to all
    available remedies, especially where, as discussed, such a stop
    plainly is unconstitutional under art. 14.
    21
    regard to the underlying intent or motivation of the officers
    involved.'"   Buckley, 478 Mass. at 867, quoting Santana, 420
    Mass. at 208.   The "would have" test, the hallmark of which is
    the reasonableness of an officer's actions pursuant to art. 14,
    squares neatly with art. 14's focus on objective reasonableness.
    4.   The court's approach.   To be sure, the revised equal
    protection test announced today will provide a measure of relief
    to defendants who raise claims of having been racially profiled.
    Indeed, as the court indicates, there are likely instances in
    which the revised equal protection analysis will be able to
    detect of racial profiling where an art. 14 inquiry would not.
    However, this revised test strengthens what is, in the end, a
    partial work-around to a complex problem that we have yet to
    solve.
    a.   Reliance on the equal protection approach alone leaves
    in place the unconstitutional practice of pretextual stops.      As
    discussed, pretextual stops are unreasonable pursuant to art.
    14's prohibition against unreasonable seizures.   Because the
    equal protection approach taken by the court prohibits only
    those pretextual stops motivated by race, the court's solution
    preserves the permissibility of pretextual stops based on any
    other ulterior motive.   And because the court concludes that it
    is unnecessary to analyze such stops under art. 14,
    investigatory stops made without reasonable suspicion of the
    22
    criminal activity sought to be investigated will continue
    unabated.
    It appears that the court previously has not examined the
    constitutionality of pretextual stops from an art. 14
    perspective.    When we essentially adopted the authorization test
    in Santana, 420 Mass at 208-209, we did not consider
    specifically the art. 14 consequences of automatically
    validating pretextual stops.    In that case, although the
    defendant argued that a broken tail light was used as a pretext
    to stop and search the vehicle, the motion judge did not so
    find.    Instead, the judge found that "the stop of the vehicle
    for defective equipment was a matter of routine standard police
    procedure."    Santana, supra at 209, citing Commonwealth v.
    Matchett, 
    386 Mass. 492
    , 510–511 (1982).    The Santana court
    accepted that finding and simply concluded that "the record does
    not support the contention that the troopers stopped the
    automobile in order to search it or to interrogate the
    defendants regarding illegal drug activities."    Id. at 209.
    Thus, pretext was discussed only briefly and was not truly at
    issue.
    Further, although the observation made in Santana, supra,
    that "Massachusetts cases follow the authorization approach" was
    supported with citations to prior Massachusetts cases, see id.
    at 208, pretext was not at issue in any of those cases, either.
    23
    See Commonwealth v. Petrillo, 
    399 Mass. 487
    , 489 (1987) (arrest
    for trespass); Commonwealth v. Ceria, 
    13 Mass. App. Ct. 230
    , 235
    (1982) (Terry-type analysis of stop of man riding moped in park
    by officers on foot); Commonwealth v. Tisserand, 
    5 Mass. App. Ct. 383
    , 386 (1977) (automobile double-parked on public street
    appropriately approached by police).
    Since Santana was decided, we specifically have affirmed
    the principle that a stop legally authorized by the observation
    of a motor vehicle violation, including where the observed
    violation is pretext for an unrelated motivation, is per se
    reasonable for the purposes of art. 14, but we have not
    explained why.   See Buckley, 478 Mass. at 869 ("a traffic stop
    cannot be 'arbitrary,' because it is predicated on a driver
    violating a traffic law").   See also, e.g., Larose, 
    483 Mass. 323
     327 (2019); Buckley, supra at 865-866; Feyenord, 445 Mass.
    at 75-76.
    In Lora, although the defendant challenged his stop on both
    equal protection and art. 14 grounds, we dispensed with the art.
    14 argument by quoting the authorization test, and then went on
    to analyze only the equal protection claim.   See Lora, 451 Mass.
    at 435-436.   In Buckley, 478 Mass. at 781, because the defendant
    had "expressly disavowed any . . . argument that race was a
    factor in the stop at issue," we declined to reexamine "our
    general art. 14 standard governing the reasonableness of traffic
    24
    stops."   Instead, we reviewed Lora's discussion of Santana and
    Whren, and summarily stated that, "to the extent we do consider
    the purpose of a stop when assessing its validity, we do so
    pursuant to the equal protection principles of arts. 1 and 10
    [of the Massachusetts Declaration of Rights] -- not art. 14's
    guarantee against unreasonable seizures."   Id. at 870.   Thus,
    despite the fact that Santana often is cited for the proposition
    that pretextual stops are valid, see, e.g., Larose, 483 Mass. at
    327; Buckley, 478 Mass. at 865; Commonwealth v. Blevines, 
    438 Mass. 604
    , 608 (2003); Commonwealth v. Gentile, 
    437 Mass. 569
    ,
    576 (2002); Commonwealth v. Barros, 
    435 Mass. 171
    , 180 n.4
    (2001), there is no case of which I am aware that specifically
    has considered whether using pretext to make an investigatory
    stop without reasonable suspicion of the crime sought to be
    investigated is a violation of art. 14, and if not, why not.13
    13Similarly, the Supreme Court's decision in Whren did not
    fully elaborate on the reasoning behind its oft-cited holding
    that "the constitutional basis for objecting to intentionally
    discriminatory application of laws is the Equal Protection
    Clause, not the Fourth Amendment" and that "[s]ubjective
    intentions play no role in ordinary, probable-cause Fourth
    Amendment analysis." See Whren, 
    517 U.S. at 813
    . The Whren
    Court rested its conclusion almost entirely on precedents that
    had not addressed the reasonableness of traffic stops made for a
    reason other than routine traffic enforcement. See LaFave, The
    "Routine Traffic Stop" from Start to Finish: Too Much
    "Routine," Not Enough Fourth Amendment, 
    102 Mich. L. Rev. 1843
    ,
    1856 (2004) ("By this reckless use of its own precedents, the
    Court in Whren makes it appear that the issue raised by the
    petitioners was already settled, while in fact it was very much
    25
    Today, the court reiterates that "the constitutional basis
    for objecting to intentionally discriminatory application of
    laws is the Equal Protection Clause, not the Fourth Amendment"
    or art. 14, but fails to explain why.   See Lora, 451 Mass. at
    436, quoting Whren, 
    517 U.S. at 813
    .    However, a pretextual stop
    also properly is analyzed under art. 14, just like any other
    warrantless stop.   Without reasonable suspicion of criminal
    activity (other than the traffic violation), I conclude that
    such stops are not justifiable under art. 14.   For that reason,
    I conclude that the court's decision today leaves in place an
    investigatory practice that is unconstitutional.
    b.   The revised equal protection test is necessary but is
    not alone sufficient.   The revisions to the test the court
    announces today undoubtedly will make it easier for a defendant
    to raise an inference of discriminatory intent.    However,
    because the authorization test is left intact, it will be
    possible for the Commonwealth to rebut an inference of racial
    profiling by pointing to a hunch of criminal activity, based on
    an open question. The fact that the Court created this false
    appearance perhaps explains why the Court in Whren had so little
    to say about the merits of the petitioners' claim").
    26
    factors that ostensibly are race-neutral but are in fact proxies
    for race.14
    For example, an officer could testify that the stop was
    based on the officer's recognition of the vehicle or an occupant
    from a prior interaction or observation, conversations with
    other officers, or information in a gang database.     These are
    the same factors currently used by police to racially profile
    people of color.   See generally Commonwealth v. Warren, 
    475 Mass. 530
    , 539-540 (2016) (according to study of Boston police
    field interrogation and observation reports, "[B]lack men in the
    city of Boston were more likely to be targeted for police-
    civilian encounters such as stops, frisks, searches,
    observations, and interrogations.   Black men were also
    disproportionately targeted for repeat police encounters");
    Inside the Boston Police Gang Database, WGBH, July 30, 2019,
    https://www.wgbh.org/news/local-news/2019/07/30/inside-the-
    boston-police-gang-database [https://perma.cc/N475-MS5K] (noting
    stark racial disparities and errors in individuals included in
    police gang database).
    In addition to well-disguised proxies for conscious racial
    bias, unconscious bias is also at play and by definition may not
    14As discussed infra, even if race-neutral, any factors
    that together fail to establish reasonable articulable suspicion
    of criminal activity unrelated to a traffic violation are
    insufficient to conduct an investigatory stop under art. 14.
    27
    be easily identified.   See generally D. Weisburd & M.K.
    Majmundar, eds., Proactive Policing:   Effects on Crime and
    Communities, ch. 7, Racial Bias and Disparities in Proactive
    Policing, 251, 277-280 (2018) (collecting studies on unconscious
    racial bias); id. at 277 ("Although overt expressions of biased
    behavior have declined in society and among police, racial
    animus has not disappeared.   Rather, it has evolved"); Norton,
    Vandello, Sommers, & Darley, Mixed Motives and Racial Bias, 12
    Psychol. Pub. Pol'y & L. 36, 39 (2006), and studies cited
    ("people are quite good at masking their biased behavior by
    couching it in more acceptable terms, both to avoid the
    appearance of impropriety and as part of a more general effort
    to view themselves and their choices positively").
    Furthermore, we know that judges traditionally are
    reluctant to reject race-neutral explanations based on what
    happens when they are required to rule on them in the context of
    jury selection.15   In fact, the Batson framework has been
    criticized for this very reason, i.e., the unwillingness of
    judges to make a finding that the nondiscriminatory reason
    15Under the Batson framework, a party may challenge a
    peremptory strike by raising an inference of discrimination
    which the opposing party may rebut by proffering a
    nondiscriminatory reason for the strike. Batson v. Kentucky,
    
    476 U.S. 79
    , 93-96 (1986). See Commonwealth v. Soares, 
    377 Mass. 461
    , 486-488, cert. denied, 
    444 U.S. 881
     (1979). It is
    for the judge to determine whether the party seeking to exercise
    the peremptory strike has met its burden.
    28
    proffered to explain a peremptory strike is not the actual
    reason for the strike.     See Batson v. Kentucky, 
    476 U.S. 79
    , 93-
    96 (1986); Bellin & Semitsu, Widening Batson's Net to Ensnare
    More Than the Unapologetically Bigoted or Painfully
    Unimaginative Attorney, 
    96 Cornell L. Rev. 1075
    , 1092, 1098-
    1099, 1127 (2011) (analysis of Federal court opinions and orders
    evaluating race-based Batson challenges from 2000 through 2009
    revealed "[a] broad subset of reasons [accepted by courts to
    justify a challenged strike], while not race-based per se, seem
    to correlate with race, suggesting that an attorney seeking to
    eliminate all the members of a certain race from the jury could
    achieve much of that goal by focusing on purportedly 'race-
    neutral' factors that happen to correlate with race"); Cavise,
    The Batson Doctrine:    The Supreme Court's Utter Failure to Meet
    the Challenge of Discrimination in Jury Selection, 
    1999 Wis. L. Rev. 501
    , 545 (1999) ("The savvy litigator can succeed with the
    most blatant discriminatory purpose by a simple manipulation of
    the neutral explanation coupled with a dose of
    disingenuousness").
    Statistical data are not as susceptible to being explained
    away with race-neutral justifications and therefore will, as the
    court indicates, continue to have "unique advantages" over other
    types of evidence.     However, the available data on the racial
    demographics of motorists involved in traffic stops continues to
    29
    be severely limited, which is the very reason that Lora did not
    work for defendants alleging racial profiling.16   Although this
    defendant was able to collect sufficient data (consisting of the
    six most recent years of officer-specific field investigation
    and observation reports and citations), it is unlikely that
    other defendants will be able to follow suit.17
    16Even if sufficient data is theoretically available,
    practically speaking we cannot expect every defendant to have
    the resources to collect, analyze, and present existing data to
    make a prima facie case of discrimination. See State v. Brown,
    
    930 N.W.2d 840
    , 865 n.8 (Iowa 2018) (Cady, C.J., dissenting),
    quoting Jackson, Profiling the Police: Flipping 20 Years of
    Whren on its Head, 
    85 UMKC L. Rev. 671
    , 680 (2017) ("On average,
    to take an equal protection claim to trial costs anywhere from
    $45,000 up to $125,000").
    17I agree that statistical evidence is an excellent form of
    evidence and that it can be a vital part of demonstrating that a
    stop was based on race, particularly when implicit bias is at
    play. Nonetheless, there are lingering concerns about the
    availability and accessibility of necessary data.
    In 2019 the Legislature enacted G. L. c. 90, § 63, which
    requires municipalities to report annually traffic stop data.
    See St. 2019, c. 122, § 10. I am not aware of any reports or
    data yet published pursuant to that statute. The court notes
    that a bill currently under consideration "likely would enable
    defendants to access publicly available, department-wide data on
    the demographics of all traffic stops in the relevant
    municipality, and would provide a plethora of relevant data
    available to support (or weaken) equal protection claims." Ante
    at    . It appears that neither the 2019 act nor the bill
    currently under consideration would guarantee defendants access
    to the officer-specific data that the defendant analyzed here.
    Moreover, even assuming a showing of a department-wide, as
    opposed to an officer-specific, pattern of racial profiling
    would be a sufficient statistical showing, the shortcomings I
    raise regarding the one-time collection of similar data pursuant
    to St. 2000, c. 228, apply equally to the new data sets, which
    30
    The most recent Statewide dataset on racial profiling in
    traffic stops of which we have been made aware is a May 2004
    report prepared by experts at Northeastern University pursuant
    to St. 2000, c. 228.   Analyzing motor vehicle citations issued
    by every police department in the Commonwealth from April 1,
    2001, through June 30, 2003, the experts concluded that 249 of
    the Commonwealth's 366 police departments appeared to have
    engaged in racial or gender profiling.18   See Farrell, McDevitt,
    are also aggregated by municipality and therefore may obscure
    particular race-based stops or the actions of individual biased
    officers. Given the experience after Lora, if past is prologue,
    we have no assurance that such information will be available in
    the future.
    18The experience with the Legislature's attempt to mandate
    data collection on racial profiling via St. 2000, c. 228,
    further illustrates the uncertainty of defendants' access to
    useful data for equal protection claims. Pursuant to that act,
    in 2005 the Secretary of the Executive Office of Public Safety
    (Secretary) ordered the 249 police departments found by the
    Northeastern experts to have engaged in racial or gender
    profiling to collect additional data on all traffic stops for
    one year, including information on the identities of officers
    making such stops. See St. 2000, c. 228, § 10. See generally
    Boston Police Patrolmen's Ass'n, Inc. v. Police Dep't of Boston,
    
    446 Mass. 46
    , 48-49 (2006). In that case, the union for Boston
    police officers sought to enjoin the collection of officer
    identities in this second phase of data collection. Id. at 47.
    We held that, "[i]n order to fulfil the Act's objective of
    eliminating profiling by police officers," the Secretary could
    require the collection of data identifying the officer making
    the stop during this second phase. See id. at 52-53. However,
    by the time Lora was decided in 2008, "nearly one-half of the
    targeted police departments did not follow recommended
    guidelines and the State did not receive or review any data"
    collected pursuant to the second phase of data collection by
    departments found to have engaged in racial or gender profiling.
    See Lora, 451 Mass. at 449 (Ireland, J., concurring).
    31
    Bailey, Andresen, & Pierce, Massachusetts Racial and Gender
    Profiling Study:    Final Report, Institute on Race and Justice of
    Northeastern Univ., at 1, 30 (May 4, 2004).
    For a defendant challenging a traffic stop by an officer in
    one of those 249 departments, this 2004 study may be sufficient
    to raise an inference of racial profiling if unrebutted by more
    recent data.   But for defendants stopped by officers of any of
    the 117 departments that were not found to have engaged in
    racial profiling in 2004, it is unclear whether any data
    currently exists that could raise a statistical inference of
    racial profiling.    More generally, data showing an over-all
    pattern of racially evenhanded stops by a department (or by an
    individual officer) may belie particular instances of racial
    profiling that are not apparent in the aggregation of numerous
    stops.   The vast majority of stops by an officer or department
    may be race-neutral; however, data demonstrating an over-all
    pattern of fairness should not preclude a remedy for an outlier
    racially motivated stop.
    Despite the foregoing, the court's revised test
    unquestionably increases a defendant's chances of demonstrating
    racial discrimination.     Indeed, the scenarios the court foresees
    in which traffic stops that pass muster under the "would have"
    test are nonetheless products of racially discriminatory
    decisions about where to deploy police officers, illustrate the
    32
    continuing importance of the equal protection remedy.
    Nevertheless, the ability to proceed on both equal protection
    and art. 14 grounds would give defendants an even greater
    opportunity to establish illegal discrimination.
    c.   Equal protection is not the only constitutional
    guarantee available to address racial discrimination.   Today the
    court continues to analyze claims of racial profiling solely
    through an equal protection lens, without explaining why such
    claims do not also implicate art. 14.   The court's failure to
    engage this question at all is particularly bewildering because
    the answer seems straightforward:   surely a stop based on race
    is an unreasonable seizure under art. 14.
    Historically, equal protection of the laws, enshrined in
    both the Declaration of Rights and the United States
    Constitution, never has been the only constitutional avenue for
    redressing racial injustices.   In fact, many Supreme Court cases
    that granted to all criminal defendants what are now basic
    procedural rights originated from the mistreatment of people of
    color.   See, e.g., Miranda v. Arizona, 
    384 U.S. 436
    , 444-445
    (1966) (right to Miranda warnings); Gideon v. Wainwright, 
    372 U.S. 335
    , 344-345 (1963) (right to counsel); Powell v. Alabama,
    
    287 U.S. 45
    , 68-69 (1932) (same); Brown v. Mississippi, 
    297 U.S. 278
    , 287 (1936) (right to be interrogated free from coercion);
    Capers, supra at 7 n.45 (noting that "an earlier draft of
    33
    [Miranda] was explicit about the racial dynamics of police
    interrogations"); id. at 8 (noting that in Gideon, "relying
    heavily on the racially-tinged Scottsboro Boys case . . . the
    Court clearly recognized the impact its decision would have on
    minority defendants especially, given the correlation, at the
    time [and today], between race and indigence").   See also
    Klarman, The Racial Origins of Modern Criminal Procedure, 
    99 Mich. L. Rev. 48
    , 48(2000) ("the linkage between the birth of
    modern criminal procedure and southern [B]lack defendants is no
    fortuity"); Kahan & Meares, Foreword:   The Coming Crisis of
    Criminal Procedure, 
    86 Geo. L.J. 1153
    , 1153 (1998) ("The need
    that gave birth to the existing criminal procedure regime was
    institutionalized racism"); Pye, The Warren Court and Criminal
    Procedure, 
    67 Mich. L. Rev. 249
    , 256 (1968) ("The Court's
    concern with criminal procedure can be understood only in the
    context of the struggle for civil rights").   As succinctly put
    by Kahan & Meares, supra:
    "Law enforcement was a key instrument of racial repression,
    in both the North and the South, before the 1960's civil
    rights revolution. Modern criminal procedure reflects the
    Supreme Court's admirable contribution to eradicating this
    incidence of American apartheid. Supplanting the
    deferential standards of review that had until then
    characterized its criminal procedure jurisprudence, the
    Court, beginning in the 1960's and continuing well into the
    1970's, erected a dense network of rules to delimit the
    permissible bounds of discretionary law-enforcement
    authority. Although rarely couched as such, the
    unmistakable premise of these doctrines was the assumption
    34
    that communities could not be trusted to police their own
    police because of the distorting influence of racism.
    There is no reason why a defendant claiming that a stop was
    motivated by race should be barred from seeking a remedy for an
    unreasonable seizure violative of art. 14 in addition to an
    equal protection claim.   Cf. Goodridge v. Department of Pub.
    Health, 
    440 Mass. 309
    , 320 (2003) (analyzing restrictions on
    marriage under equal protection and due process doctrines, "two
    constitutional concepts [which] frequently overlap").    See
    Brown, 930 N.W.2d at 920 (Appel, J., dissenting) ("Certainly,
    the theoretical availability of an equal protection claim should
    not preempt the possibility of a claim under search and seizure
    principles").19
    5.   Conclusion.   In 1999, then-Associate Justice Ireland
    broached the issue of racially discriminatory motor vehicle
    19Obviously, this approach would affect substantially more
    stops than those where, as here, the defendant alleges that the
    ulterior motive for the stop was racial discrimination. As
    discussed, supra, art. 14's bedrock protection against
    unreasonable seizures applies to all pretextual stops, not only
    those based on race. Just as we should not sanction as
    reasonable a traffic stop based explicitly on a driver's race,
    we also should not allow stops based on nothing more than, for
    example, the driver's hairstyle or the apparent expense of the
    car relative to the neighborhood in which it is traveling. See
    Brown, 930 N.W.2d at 928 (Appel, J., dissenting), quoting United
    States v. Scopo, 
    19 F.3d 777
    , 786 (2d Cir.), cert. denied, 
    513 U.S. 877
     (1994) (Newman, C.J., concurring). Given the
    historical and ongoing connection between systemic law
    enforcement practices and racial discrimination, it is not at
    all surprising that an effective remedy for racial profiling
    entails a broader prohibition on the use of pretextual stops.
    35
    stops, noting that, by that time, the "widespread public
    concerns about police profiling, commonly referred to as 'DWB --
    driving while [B]lack,' ha[d] been the subject of much
    discussion and debate both across the country and within the
    Commonwealth."     See Gonsalves, 429 Mass. at 670 (Ireland, J.,
    concurring).     It would be nearly ten years before the court
    addressed the problem directly.     See Lora, 
    451 Mass. 426
    .
    Unfortunately, for the reasons previously discussed, Lora was
    not effective in solving the problem of racially motivated motor
    vehicle stops.     Twelve years after Lora was decided, and more
    than two decades since the issue first was raised by Justice
    Ireland, we have a chance to revisit the question of how to
    craft a remedy that will provide relief to people in the
    Commonwealth who are targeted on the basis of the color of their
    skin.
    This time around we should confront squarely the fact that
    the phenomenon of racial profiling is a product of more than
    one-off cases of individual bias or animus -- it is a systemic
    problem that has flourished under the rules that this court has
    set.    A systemic solution requires more than an improved test
    for identifying individual instances of bias when they come
    before courts.     It requires a reevaluation of the rules that
    enable and incentivize officers to make pretextual race-based
    36
    stops in the first place.20   Combining the court's improved test
    for identifying particular cases of race-based stops with a
    broader prohibition on pretextual stops would deter racial
    profiling and eliminate the tool most often used to accomplish
    it.   More generally, as long as we continue to allow pretextual
    stops, the search and seizure protections of art. 14 will
    continue to ring hollow.
    In the twenty-five years since deciding Santana, the court
    has not examined the art. 14 implications of the pretextual
    stops that are legitimized by the authorization test.   Given the
    opportunity to broaden the options available to combat racial
    profiling, it is disappointing that the court is willing to
    stand behind a rule that allows for pretextual stops without
    considering whether, and how, such stops are reasonable from an
    As I advocate for adding an option to proceed under art.
    20
    14 in addition to the court's solution, there is no need to
    compare which strategy is better -- I conclude that a defendant
    should have the option to choose either, or both. The
    difference between my position and that of the court is not a
    disagreement regarding "the best legal analysis"; it is a
    question of which position is more comprehensive.
    I differ with the court, however, with regard to what is
    meant by a systemic solution. The court is of course correct
    that improvements in data collection will further illustrate the
    existence of systemic racism in traffic stops. But using new
    data to confirm the existence of an already undeniable systemic
    problem is not the same as changing the system of rules and
    practices that perpetuate racial discrimination in policing. A
    focus on individual instances of race-based stops without
    addressing the rule that enables them cannot be considered a
    systemic approach, no matter how well-meaning it may be.
    37
    art. 14 standpoint.     See Amado, 474 Mass. at 151 n.4 (pretextual
    stops, "though lawful under our current jurisprudence, implicate
    important policy concerns about racial profiling in encounters
    between the police and persons of color"); Lora, 451 Mass. at
    447 (Ireland, J., concurring), quoting Feyenord, 445 Mass. at 87
    (Greaney, J., concurring) ("I repeat the observation of Justice
    Greaney that poorer citizens, who likely would include
    minorities, are more likely to be 'driving vehicles with
    defective equipment,' thus providing police with a legitimate
    reason to exercise discretion to stop them").
    As evidenced by the letter that the full court issued
    recently, we are united in the goal to "ensure that the justice
    provided to African-Americans is the same that is provided to
    white Americans."     Letter from the Seven Justices to Members of
    the Judiciary and Bar (June 3, 2020).      It is worth reiterating,
    however, that systemic or institutional racism produces racially
    disparate outcomes regardless of the intent of the people who
    work within the institution.     See id.   Our current state of
    affairs is not what any one of the Justices who comprise this
    court chose or would choose.    It nevertheless is a painful fact.
    I conclude that evaluating this form of racial profiling
    under art. 14 not only would resolve an inconsistency in our
    search and seizure jurisprudence but also would go a long way,
    38
    at long last, toward addressing the systemic problem of racial
    profiling with a systemic solution.
    CYPHER, J. (concurring).    I agree with Justice Gaziano that
    lessening the burden on the defendant in the Lora test is the
    best approach to address the disparate effects of automobile
    stops on minority communities.   See Commonwealth v. Lora, 
    451 Mass. 425
    , 440-442 (2008).   I write separately to emphasize two
    points.
    First, the officers' stop of the defendant did not result
    from an observed traffic violation, but rather from conducting a
    query regarding the defendant's license plates.1   There was no
    observed traffic violation that motivated the officers to query
    the plates; however, there is no expectation of privacy in a
    license plate number, which is required by law to be displayed
    conspicuously on the exterior of a vehicle.   G. L. c. 90, § 6.
    See Commonwealth v. McCarthy, 
    484 Mass. 493
    , 502 & n.8 (2020),
    discussing Commonwealth v. Starr, 
    55 Mass. App. Ct. 590
    , 593-594
    (2002).2
    1 Through a mobile computer, "[a]n officer inputs license
    plate numbers, and, within seconds, receives various information
    in reply, including the type of vehicle that is assigned to the
    plate, whether the vehicle is registered, whether the vehicle
    owner has an active license, and whether any warrants are
    outstanding." See Commonwealth v. Muckle, 
    61 Mass. App. Ct. 678
    , 679 n.3 (2004).
    2 It is well established that there is a "lesser expectation
    of privacy in a motor vehicle because its function is
    transportation and it seldom serves as one's residence or as the
    repository of personal effects." Cardwell v. Lewis, 
    417 U.S. 583
    , 590 (1974).
    2
    Although the random stop of a motor vehicle has been held
    to be a violation of the Fourth Amendment to the United States
    Constitution, a random number plate check is not.    Starr, supra
    at 594.   See United States v. Diaz-Castaneda, 
    494 F.3d 1146
    ,
    1151-1152 (9th Cir.), cert. denied, 
    552 U.S. 1031
     (2007).
    That does not mean, however, that a race-based decision to
    query plates is permissible.    See Starr, supra at 594 n.8.   Much
    like a decision to selectively perform a traffic stop based on
    race, the querying of plates based on race is a potential
    violation of the principles of equal protection.    Even though
    there are no limitations under art. 14 of the Massachusetts
    Declaration of Rights or the Fourth Amendment on querying
    license plates, the start of the analysis in some cases should
    be the decision to query the plates.     In the event that a judge
    determines, based on the totality of the circumstances, that an
    officer's decision to query plates was motivated by racial or
    ethnic bias, the remedy remains suppression of evidence obtained
    during the subsequent stop.     See Lora, 
    451 Mass. 425
     439-440.
    Second, Massachusetts places the enforcement of motor
    vehicle laws with the police.    Under G. L. c. 90C, § 3 (A) (1),
    "if a police officer observes or has brought to the officer's
    attention the occurrence of a civil motor vehicle infraction,"
    the officer may issue a warning or citation.     Indeed, in some
    circumstances, a police officer or his or her employer may face
    3
    liability for failing to address a public safety hazard created
    by a driver.   See Irwin v. Ware, 
    392 Mass. 745
    , 764 (1984) (jury
    could have found that town's police officers had duty to
    plaintiffs and that police officers' negligence in failing to
    remove intoxicated driver proximately caused plaintiffs'
    injuries).   As Justice Budd's opinion has demonstrated, the
    problem we are confronting today is systemic in nature and
    therefore requires a systemic solution.   Such a solution,
    however, requires the full engagement of all of the relevant
    interests, including the public and the police, and perhaps the
    Legislature.   See, e.g., Berkeley council approves "omnibus
    motion" on police reform, Berkeleyside, July 15, 2020,
    https://www.berkeleyside.com/2020/07/15/berkeley-council-
    approves-omnibus-motion-to-reform-policing
    [https://perma.cc/S7UP-VGZL].