Lunn v. Commonwealth , 477 Mass. 517 ( 2017 )


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    SJC-12276
    SREYNUON LUNN   vs.   COMMONWEALTH & another.1
    Suffolk.     April 4, 2017. - July 24, 2017.
    Present:    Gants, C.J., Lenk, Hines, Gaziano, Lowy, Budd,
    & Cypher, JJ.
    Alien.   Arrest.
    Civil action commenced in the Supreme Judicial Court for
    the county of Suffolk on February 7, 2017.
    The case was reported by Lenk, J.
    Emma C. Winger (Mark Fleming, of New York, & Alyssa
    Hackett, Committee for Public Counsel Services, also present)
    for the petitioner.
    Joshua S. Press, of the District of Columbia, for the
    United States.
    Jessica V. Barnett, Assistant Attorney General (Allen H.
    Forbes, Special Assistant Attorney General, & Sara A. Colb,
    Assistant Attorney General, also present) for the Commonwealth &
    another.
    The following submitted briefs for amici curiae:
    Sabrineh Ardalan, of New York, Philip L. Torrey, Mark C.
    Fleming, & Laila Ameri for Immigration and Refugee Clinical
    Program at Harvard Law School.
    Christopher N. Lasch, of Colorado, for David C. Baluarte &
    others.
    1
    Sheriff of Suffolk County (sheriff), intervener.
    2
    Karen Pita Loor for Criminal Defense Clinic at Boston
    University School of Law.
    Omar C. Jadwat, of New York, Spencer E. Amdur, of
    Pennsylvania, Cody H. Wofsy, of California, Matthew R. Segal,
    Jessie J. Rossman, Laura Rótolo, Carlton E. Williams, Kirsten V.
    Mayer, Kim B. Nemirow, & Laura Murray-Tjan for Bristol County
    Bar Advocates, Inc., & others.
    BY THE COURT.     After the sole pending criminal charge
    against him was dismissed, the petitioner, Sreynuon Lunn, was
    held by Massachusetts court officers in a holding cell at the
    Boston Municipal Court at the request of a Federal immigration
    officer, pursuant to a Federal civil immigration detainer.
    Civil immigration detainers are documents issued by Federal
    immigration officers when they wish to arrest a person who is in
    State custody for the purpose of removing the person from the
    country.    By issuing a civil detainer, the Federal officer asks
    the State custodian voluntarily to hold the person for up to two
    days after he or she would otherwise be entitled to be released
    from State custody, in order to allow Federal authorities time
    to arrive and take the person into Federal custody for removal
    purposes.
    The United States Supreme Court has explained that, "[a]s a
    general rule, it is not a crime for a removable alien to remain
    present in the United States," Arizona v. United States, 
    567 U.S. 387
    , 407 (2012), and that the Federal administrative
    process for removing someone from the country "is a civil, not
    3
    criminal, matter."   
    Id. at 396.
       Immigration detainers like the
    one used in this case, for the purpose of that process, are
    therefore strictly civil in nature.    The removal process is not
    a criminal prosecution.   The detainers are not criminal
    detainers or criminal arrest warrants.    They do not charge
    anyone with a crime, indicate that anyone has been charged with
    a crime, or ask that anyone be detained in order that he or she
    can be prosecuted for a crime.     Detainers like this are used to
    detain individuals because the Federal authorities believe that
    they are civilly removable from the country.
    It is undisputed in this case that holding someone in
    circumstances like this, against his or her will, constitutes an
    arrest under Massachusetts law.    The question before us,
    therefore, is whether Massachusetts court officers have the
    authority to arrest someone at the request of Federal
    immigration authorities, pursuant to a civil immigration
    detainer, solely because the Federal authorities believe the
    person is subject to civil removal.     There is no Federal statute
    that confers on State officers the power to make this kind of an
    arrest.   The question we must answer is whether the State law of
    Massachusetts authorizes such an arrest.    To answer the
    question, we must look to the long-standing common law of the
    Commonwealth and to the statutes enacted by our Legislature.
    Having done so, we conclude that nothing in the statutes or
    4
    common law of Massachusetts authorizes court officers to make a
    civil arrest in these circumstances.2,3
    Background.   Lunn was arraigned in the Boston Municipal
    Court on October 24, 2016, on a single count of unarmed robbery.
    The day before the arraignment, the United States Department of
    Homeland Security (department) issued a civil immigration
    detainer against him.   The detainer document was a standard form
    document then in use by the department.    It requested, among
    other things, that the Massachusetts authorities continue to
    hold Lunn in State custody for up to two days after he would
    otherwise be released, in order to give officers of the
    department time to arrive and take him into Federal custody.4
    2
    Given this conclusion, we do not address whether such an
    arrest, if authorized, would be permissible under the United
    States Constitution or the Massachusetts Declaration of Rights.
    3
    We acknowledge the amicus briefs submitted by the
    Immigration and Refugee Clinical Program at Harvard Law School;
    the Criminal Defense Clinic at Boston University School of Law;
    Bristol County Bar Advocates, Inc., Massachusetts Association of
    Criminal Defense Lawyers, Pilgrim Advocates, Inc., and Suffolk
    Lawyers for Justice, Inc.; and thirty academics in the field of
    immigration law.
    We also acknowledge the   brief filed by the United States as
    amicus curiae. In addition,    we allowed the motion of the United
    States to participate in the   oral argument of the case. Mass.
    R. A. P. 17, as amended, 
    426 Mass. 1602
    (1998).
    4
    The detainer was addressed to the Boston police department
    and any other Massachusetts authorities that subsequently
    assumed custody of Lunn. The detainer form states, "This
    request takes effect only if you serve a copy of this form on
    the subject . . . ," and provides space for "the law enforcement
    5
    Bail was set at the arraignment in the amount of $1,500.
    Lunn did not post bail and, according to the trial court docket,
    was committed to the custody of the sheriff of Suffolk County
    (sheriff) at the Suffolk County jail in lieu of bail.5
    Lunn was brought back to court for trial on February 6,
    2017.6   He was transported from the jail to the court house by
    agency currently holding the subject of the notice" to indicate
    when and how it was served. Lunn does not appear to have been
    served with a copy of the detainer by the police, the sheriff,
    or the court, although he acknowledges that he was told of it by
    his counsel.
    5
    An entry was made on the trial court docket stating that
    the petitioner was "held on . . . [the] detainer." This entry,
    to the extent it suggests that the petitioner was actually being
    held in custody pursuant to the Federal immigration detainer, is
    misleading. At no point before trial was he actually held
    pursuant to the detainer. He was held in lieu of bail while
    awaiting trial in the present case and, for a brief period, on a
    criminal sentence in a separate case (see note 6, infra). The
    detainer by its own terms requested that he be detained only if
    and when he was to be released from State custody.
    6
    Several additional events occurred between the time of
    arraignment and the time of trial that, although not essential
    to our decision, are worth noting. First, Lunn was transferred
    at some point to the custody of the sheriff of Norfolk County to
    serve a sentence (at the Norfolk County house of correction) in
    a separate criminal case from Norfolk County. When that
    sentence was completed, on or about January 13, 2017, he was
    returned to the custody of the sheriff of Suffolk County and
    held in lieu of bail awaiting trial in this case.
    Second, on November 21, 2016, the trial court allowed the
    Commonwealth's motion to amend the criminal complaint in the
    case, with Lunn's consent, by reducing the charged offense from
    unarmed robbery (G. L. c. 265, § 19 [b]) to larceny from a
    person (G. L. c. 266, § 25 [b]).
    Third, on January 20, 2017, a judge in the Superior Court,
    6
    personnel from the office of the sheriff, and was delivered into
    the custody of the trial court's court officers.    Because the
    Commonwealth was not ready for trial at that time, the judge
    dismissed the case for lack of prosecution.7   At that point there
    were no longer any criminal charges pending against Lunn in
    Massachusetts.    Lunn's counsel informed the judge of the
    outstanding detainer and asked that Lunn be released from
    custody notwithstanding the detainer, the criminal case having
    been dismissed.   The judge declined to act on that request.8
    Lunn remained in the custody of the court officers; it appears
    that he was kept in a holding cell in the court house.       Several
    hours later -- the record before us does not specify exactly how
    long -- department officials arrived at the court house and took
    Lunn into Federal custody.
    The following morning, February 7, 2017, Lunn's counsel
    acting on a request for bail review, G. L. c. 276, § 58, reduced
    the amount of Lunn's bail to $750. Although Lunn was
    financially able to post that amount, he declined to do so on
    the belief that he would then be held anyway on the outstanding
    detainer.
    7
    This was the second scheduled trial date. The
    Commonwealth had not been ready for trial on the first date, so
    the case was continued to February 6, 2017.
    8
    The docket entry in this respect originally stated that
    Lunn's request to be released had been "heard and denied." The
    entry was later changed (after the case was entered in this
    court) to state that "[n]o action" was taken on the request.
    The parties agree that the amended entry accurately reflects the
    judge's statement, made in response to Lunn's request, that he
    "decline[d] to take any action on the detainer."
    7
    filed a petition in the county court on his behalf, pursuant to
    G. L. c. 211, § 3, asking a single justice of this court to
    order the Boston Municipal Court to release him.9    The petition
    alleged, among other things, that the trial court and its court
    officers had no authority to hold Lunn on the Federal civil
    detainer after the criminal case against him had been dismissed,
    and that his continued detention based solely on the detainer
    violated the Fourth and Fourteenth Amendments to the United
    States Constitution and arts. 12 and 14 of the Massachusetts
    Declaration of Rights.    By that time, however, Lunn had already
    been taken into Federal custody.    The single justice therefore
    considered the matter moot but, recognizing that the petition
    raised important, recurring, and time-sensitive legal issues
    that would likely evade review in future cases, reserved and
    reported the case to the full court.
    Discussion.   1.    Civil versus criminal immigration
    enforcement.   The principal statute governing immigration in the
    United States is the Immigration and Nationality Act (act), 8
    U.S.C. §§ 1101 et seq.    It sets forth in elaborate detail the
    9
    Previously, two other Supreme Judicial Court single
    justices, acting on similar petitions pursuant to G. L. c. 211,
    § 3, had ruled that Massachusetts trial courts have no authority
    to hold a defendant, or otherwise order him or her to be held,
    on a Federal civil immigration detainer. Nelson Maysonet vs.
    Commonwealth, Supreme Judicial Court, No. SJ-2016-346 (Aug. 12,
    2016). Santos Moscoso vs. A Justice of the E. Boston Div. of
    the Boston Mun. Ct., Supreme Judicial Court, No. SJ-2016-168
    (May 26, 2016).
    8
    terms, conditions, and procedures for admitting individuals into
    the United States who are not citizens or nationals of this
    country (referred to in the act as "aliens," 8 U.S.C.
    § 1101[a][3]), as well as the terms, conditions, and procedures
    for removing those individuals from the country.    Some
    violations of the act are criminal offenses.    It is a crime, for
    example -- punishable as a misdemeanor for the first offense --
    for an alien to enter the country illegally.   8 U.S.C.
    § 1325(a).10   Immigration crimes are prosecuted in the Federal
    District Courts, like any other Federal crimes.
    Many violations of the act are not criminal offenses.
    Being present in the country illegally, for example, is not by
    itself a crime.   Illegal presence without more is only a civil
    violation of the act that subjects the individual to possible
    removal.   8 U.S.C. § 1227(a)(1)(B).   See 
    Arizona, 567 U.S. at 407
    ; Melendres v. Arpaio, 
    695 F.3d 990
    , 1000-1001 (9th Cir.
    2012) ("[U]nlike illegal entry, mere unauthorized presence in
    10
    Other immigration crimes include failing to carry a
    registration card, 8 U.S.C. § 1304(e); wilfully failing to
    register, making fraudulent statements in connection with
    registration, or counterfeiting registration documents, 
    id. at §
    1306; knowingly bringing in, transporting, or harboring an
    alien, 
    id. at §
    1324; engaging in a pattern or practice of
    illegally hiring aliens, 
    id. at §
    1324a(f); operating a
    commercial enterprise for the purpose of evading immigration
    laws, 
    id. at §
    1325(d); and illegally reentering the country
    after having previously been removed, 
    id. at §
    1326. There is
    no indication in the record before us that Lunn entered the
    country illegally or committed any immigration crime.
    9
    the United States is not a crime").11
    Significantly, the administrative proceedings brought by
    Federal immigration authorities to remove individuals from the
    country are civil proceedings, not criminal prosecutions.   See
    
    Arizona, 567 U.S. at 396
    .   See also 6 C. Gordon, S. Mailman,
    S. Yale-Loehr, & R.Y. Wada, Immigration Law and Procedure
    § 71.01[4][a] (Matthew Bender, rev. ed. 2016) (acknowledging
    "the uniform judicial view, reiterated in numerous Supreme Court
    and lower court holdings, . . . that [removal] is a civil
    consequence and is not regarded as criminal punishment").   This
    is true even where the alleged basis for removal is the
    11
    Other civil immigration violations include engaging in
    unauthorized work, 8 U.S.C. § 1227(a)(1)(C)(i); failing to
    remove alien stowaways from vessels and aircraft, 
    id. at §
    1253(c)(1); and wilfully failing or refusing to depart from
    the country after a final order of removal, 
    id. at §
    1324d(a).
    The latter potentially has both civil and criminal consequences.
    See 
    id. at §
    § 1253(a), 1324d(a).
    Although there was a final order of removal outstanding
    against Lunn, issued in 2008, there is no indication in the
    record before us that he wilfully failed or refused to depart
    pursuant to that order. The United States represents in its
    brief that the reason Lunn was not actually removed pursuant to
    the 2008 order is that "his country of origin declined to
    provide travel documents." He was instead released from Federal
    detention in 2008 on supervision. See 8 U.S.C. § 1231(a). We
    note that he was again released from Federal detention, for the
    same reason, in May, 2017, approximately three and one-half
    months after he was taken into Federal custody in this case.
    Boston Globe, Immigrant Who Can't Be Deported to Cambodia
    Released from Detention, May, 2017, https://www.bostonglobe.com
    /metro/2017/05/24/immigrant-who-can-deported-cambodia-
    challenges-his-detention/JZ6PUrPNYK125ZbdKbaM0N/story.html
    [https://perma.cc/3S8E-SXJB].
    10
    commission of a criminal offense.   Aliens are subject to removal
    from the country for a variety of reasons.    For example, an
    individual is subject to removal if he or she was inadmissible
    at the time of entry into the country or has violated the terms
    and conditions of his or her admission, 8 U.S.C.
    § 1227(a)(1)(A)-(D); has committed certain crimes while in the
    country, 
    id. at §
    1227(a)(2); is or at any time after admission
    into the country has been a drug abuser or addict, 
    id. at §
    1227(a)(2)(B)(ii); presents certain security or foreign policy
    risks, 
    id. at §
    1227(a)(4); has become a public charge, 
    id. at §
    1227(a)(5); or has voted illegally, 
    id. at §
    1227(a)(6).
    Removal proceedings are heard and decided by executive branch
    immigration judges appointed by the United States Attorney
    General, who operate within the Department of Justice's
    Executive Office for Immigration Review.     
    Id. at §
    1101(b)(4).
    2.   Use of civil immigration detainers.    The type of
    immigration detainer issued by the department in this case was
    Form I-247D, entitled "Immigration Detainer - Request for
    Voluntary Action."   It was one of three different types of forms
    then being used by the department to notify State authorities
    that they had in their custody a person believed by the
    department to be a removable alien, and to indicate what action
    the department was asking the State authorities to take with
    11
    respect to that person.12
    Form I-247D was to be completed and signed by a Federal
    immigration officer.    In part 1.A of the form, the officer was
    asked to indicate, by checking one or more of six boxes, a basis
    on which the department had determined that the person in
    custody was "an immigration enforcement priority."13   The officer
    in this case checked the box stating that Lunn "has been
    convicted of a 'significant misdemeanor' as defined under
    [department] policy."    There was no indication on the form what
    that misdemeanor was, whether it was a Federal or State offense,
    when it occurred, or when he was convicted.
    Part 1.B of the form stated that the department had
    determined that there was probable cause to believe that the
    person in custody was a removable alien, and required the
    officer completing the form to indicate, by checking one or more
    12
    The other two forms were Form I-247N, entitled
    "Immigration Detainer - Request for Voluntary Notification of
    Release of Suspected Priority Alien," and Form I-247X, entitled
    "Request for Voluntary Transfer." Neither of those forms was
    used in this case. The Federal government has since rescinded
    all three forms and replaced them with a single new form,
    described in note 17, infra.
    13
    The "enforcement priority" language referred to certain
    prioritized bases for removal that were set forth in a "priority
    enforcement program" that was then in effect. The program is no
    longer in effect. It has been terminated pursuant to an
    executive order of the President of the United States. See
    Exec. Order No. 13768, Enhancing Public Safety in the Interior
    of the United States, 82 Fed. Reg. 8799, 8801, at § 10(a) (Jan.
    25, 2017).
    12
    of four boxes, the basis for that determination.   In this case
    the officer checked two boxes:   the first stated that there was
    "a final order of removal against the [petitioner]"; and the
    second stated that there was "biometric confirmation of the
    [petitioner's] identity and a records check of federal databases
    that affirmatively indicate, by themselves or in addition to
    other reliable information, that the [petitioner] either lacks
    immigration status or notwithstanding such status is removable
    under [United States] immigration law."   The detainer did not
    provide any specific details as to the order of removal.14
    The detainer form stated that the department "requested"
    the custodian of the subject of the detainer to do three things:
    (1) "[s]erve a copy of this form on the subject and maintain
    custody of him/her for a period NOT TO EXCEED 48 HOURS beyond
    the time when he/she would otherwise have been released from
    your custody to allow [the department] to assume custody";15 (2)
    14
    The final order of removal was issued in 2008. Despite
    the order, the Federal authorities were unsuccessful in actually
    removing Lunn. See note 
    11, supra
    . There is no indication in
    the record that they did not know how to find him in 2016 when
    they issued the detainer in this case, that he presented a
    flight risk, or that the reason they were unable to remove him
    previously had subsided.
    15
    As stated in note 
    4, supra
    , there is no indication in the
    record before us that a copy of the form was ever served on Lunn
    by any of his Massachusetts custodians -- the police, the
    sheriff, or the trial court. The parties stipulate that he was
    not served by the sheriff or by the court. The United States
    claims in its brief that it appears that he was served, citing
    13
    notify the department at a given telephone number "[a]s early as
    possible prior to the time you otherwise would release the
    subject"; and (3) "[n]otify this office in the event of the
    subject's death, hospitalization or transfer to another
    institution."16
    In short, this was a civil immigration detainer.   It
    alleged that Lunn was subject to, and was being sought by the
    Federal authorities for the purpose of, the civil process of
    removal.   It was not a criminal detainer or a criminal arrest
    warrant.   It did not allege that the Federal authorities were
    seeking Lunn for a criminal immigration offense or any other
    Federal crime, for purposes of a criminal prosecution.17
    the page of the trial court docket that states he was "held on
    . . . [the] detainer" (see note 
    5, supra
    ), although the docket
    makes no mention of the detainer having been served. The only
    copy of the detainer in the record is blank in the spaces
    provided for date and manner of service.
    16
    This case involves only the first request in the
    detainer, i.e., that a custodian continue to hold an individual
    after he or she is entitled to be released. The other two
    requests are not at issue in this case, and we therefore need
    not and do not address them.
    17
    On March 24, 2017, the Federal government, effective
    April 2, 2017, rescinded Forms I-247D, I-247N, and I-247X, and
    replaced them with a single new form, Form I-247A, entitled
    "Immigration Detainer - Notice of Action." Like Form I-247D, it
    states that the Department of Homeland Security (department) has
    determined that probable cause exists to believe that the
    subject is a removable alien, and requires the immigration
    officer completing the form to indicate, by checking one or more
    boxes, the basis on which that determination was made. It also
    states that "[t]he alien must be served with a copy of this form
    14
    In Massachusetts, an immigration detainer form of this type
    will typically travel with its subject as he or she is
    for the detainer to take effect," and it provides blank spaces,
    to be filled in by the custodian, indicating the date and manner
    of service. Significantly, like Form I-247D, it "request[s]"
    that the custodian "[n]otify [the department] as early as
    possible (at least 48 hours, if possible) before the alien is
    released from [the custodian's] custody," and "[m]aintain
    custody of the alien for a period NOT TO EXCEED 48 HOURS beyond
    the time when he/she would otherwise have been released from
    [the custodian's] custody to allow [the department] to assume
    custody."
    Pursuant to a written policy dated March 24, 2017, of
    United States Immigration and Customs Enforcement, the agency
    within the department responsible for identifying and
    apprehending removable aliens, new Form I-247A must be
    accompanied by one of two other forms: Form I-200, entitled
    "Warrant for Arrest of Alien," or Form I-205, entitled "Warrant
    of Removal/Detention." The latter applies when the individual
    named in the detainer is subject to a final order of removal,
    and may be signed by any of the thirty-two types of immigration
    officials designated in 8 C.F.R. § 241.2(a)(1); the former
    applies when the named individual is a removable alien not yet
    subject to a final order of removal, and may be signed by any of
    the fifty-three types of immigration officials designated in 8
    C.F.R. § 287.5(e)(2). These are civil administrative warrants
    approved by, and directed to, Federal immigration officials.
    Neither form requires the authorization of a judge. Neither
    form is a criminal arrest warrant or a criminal detainer.
    Unlike old Form I-247D, new Form I-247A does not contain a
    statement indicating that the individual named in the detainer
    is an "enforcement priority," or any specific basis for such a
    determination. See note 
    13, supra
    . Without this information,
    the State custodian will not know, from the new form, the reason
    alleged for seeking removal, e.g., whether the individual is
    believed to be a threat to national security or has just briefly
    overstayed a lawfully issued visa. In cases where Form I-205 is
    used, i.e., when there has been a final order of removal, the
    immigration officer completing that form must indicate the
    provisions of the Immigration and Nationality Act (act) on which
    the order was based; this may provide the State custodian with
    some information on the claimed basis for removal.
    15
    transferred between custodians.   In this case, for example, the
    detainer, originally issued by the department to the Boston
    police, would have been given by the police to the court
    officers at the time Lunn was brought into court for
    arraignment; by the court officers to the sheriff following the
    arraignment, when Lunn was committed to the sheriff's custody in
    lieu of bail; and by the sheriff back to the court officers when
    the defendant was brought into court for trial.
    The parties stipulate that it is common in Massachusetts,
    as apparently happened here, that the courts and law enforcement
    agencies do not actually serve the subject with a copy of the
    detainer, as the form requests.   The parties further stipulate
    that "[i]ndividual law enforcement agencies in the Commonwealth
    may or may not have policies on the subject of [immigration]
    detainers," and that "[p]olicies and practices vary from one
    Commonwealth law enforcement agency to another as to whether, or
    under which circumstances, to honor [such] detainers."
    3.   Voluntariness of detainers.   Federal immigration
    detainers like Form I-247D, and now Form I-247A, by their
    express terms are simply requests.   They are not commands, and
    they impose no mandatory obligations on the State authorities to
    which they are directed.   The Federal government, through the
    detainer, "requests" that it be notified when a person in State
    custody, whom the Federal government believes to be a removable
    16
    alien, is scheduled to be released, and it "requests" that the
    State authorities voluntarily keep the person in custody for up
    to two additional days, so that the department can arrive and
    assume custody of the person.
    The United States, in its brief as amicus curiae, concedes
    that compliance by State authorities with immigration detainers
    is voluntary, not mandatory.    The government's concession is
    well founded for at least two reasons.   First, the act nowhere
    purports to authorize Federal authorities to require State or
    local officials to detain anyone.    See Galarza v. Szalczyk, 
    745 F.3d 634
    , 641 (3d Cir. 2014) ("The [a]ct does not authorize
    [F]ederal officials to command [S]tate or local officials to
    detain suspected aliens subject to removal").18   Second, the
    Tenth Amendment to the United States Constitution prohibits the
    18
    One of the regulations promulgated pursuant to the act
    states in part: "(d) Temporary detention at [d]epartment
    request. Upon a determination by the [d]epartment to issue a
    detainer for an alien not otherwise detained by a criminal
    justice agency, such agency shall maintain custody of the alien
    for a period not to exceed [forty-eight] hours, excluding
    Saturdays, Sundays, and holidays in order to permit assumption
    of custody by the [d]epartment" (emphasis added). 8 C.F.R.
    § 287.7(d). As the United States Court of Appeals for the Third
    Circuit explained, the regulation's use of the word "shall,"
    correctly understood in the context of the entire statutory and
    regulatory scheme, does not change the voluntary nature of the
    detainer. Galarza v. Szalczyk, 
    745 F.3d 634
    , 640 (3d Cir. 2014)
    ("it is hard to read the use of the word 'shall' in the timing
    section to change the nature of the entire regulation"). The
    United States concedes in its amicus brief that this paragraph
    of the regulation only "defines the maximum length of time that
    an alien with an immigration detainer may be held. It does not
    require local law enforcement agencies to hold anyone."
    17
    Federal government from compelling States to employ their
    resources to administer and enforce Federal programs.     See 
    id. at 643-644,
    citing Printz v. United States, 
    521 U.S. 898
    (1997),
    and New York v. United States, 
    505 U.S. 144
    (1992) (analyzing
    constitutional concerns associated with interpreting detainers
    to be mandatory; "a conclusion that a detainer issued by a
    [F]ederal agency is an order that [S]tate and local agencies are
    compelled to follow . . . is inconsistent with the anti-
    commandeering principle of the Tenth Amendment").    In other
    words, even if the Federal government wanted to make State
    compliance with immigration detainers mandatory, the Tenth
    Amendment likely would prevent it from doing so.    The Federal
    government has also made the same concession in litigation
    elsewhere, and in various policy statements and correspondence,
    that State compliance with its detainers is voluntary.    See
    Galarza, supra at 639 n.3, 641-642 (summarizing cases and
    statements; "In short, the position of [F]ederal immigration
    agencies has remained constant:   detainers are not mandatory").
    4.   The requested detention constitutes an arrest.     What
    the department is asking for, when it requests in a civil
    immigration detainer that a Massachusetts custodian hold a
    person for up to two days after he or she would otherwise be
    entitled to release from State custody, constitutes an arrest as
    a matter of Massachusetts law.    An arrest occurs in
    18
    Massachusetts, with or without a warrant, when "there is (1) an
    actual or constructive detention or seizure, (2) performed with
    the intention to effect an arrest, and (3) so understood by the
    person detained.    See Commonwealth v. Powell, 
    459 Mass. 572
    , 580
    (2011)[, cert. denied, 
    565 U.S. 1262
    (2012)]; Commonwealth v.
    Limone, 
    460 Mass. 834
    , 839 (2011).   The subjective understanding
    of the officer or of the defendant does not control.
    Commonwealth v. Avery, 
    365 Mass. 59
    (1974); Commonwealth v.
    Johnson, 
    413 Mass. 598
    (1992)."   J.A. Grasso, Jr., & C.M.
    McEvoy, Suppression Matters Under Massachusetts Law § 6-1
    (2017).   The United States acknowledged at oral argument in this
    case that a detention like this, based strictly on a Federal
    immigration detainer, constitutes an arrest.    The government has
    made similar concessions in other cases as well.     See, e.g.,
    Moreno v. Napolitano, 
    213 F. Supp. 3d 999
    , 1005 (N.D. Ill. 2016)
    (stating that Federal defendants "concede that being detained
    pursuant to an . . . immigration detainer constitutes a
    warrantless arrest").   Cf. Morales v. Chadbourne, 
    793 F.3d 208
    ,
    217 (1st Cir. 2015) ("[W]hile a detainer is distinct from an
    arrest, it nevertheless results in the detention of an
    individual. . . .   Because Morales was kept in custody for a new
    purpose after she was entitled to release, she was subjected to
    a new seizure for Fourth Amendment purposes -- one that must be
    supported by a new probable cause justification").
    19
    To be sure, it is permissible in certain limited
    circumstances for a police officer, on making an otherwise
    lawful stop, to briefly detain an individual for investigatory
    purposes, even though the individual's liberty is thereby
    temporarily restrained and he or she is not free to leave.    See,
    e.g., Commonwealth v. Sinforoso, 
    434 Mass. 320
    , 325 (2001);
    Commonwealth v. Willis, 
    415 Mass. 814
    , 819-820 (1993);
    Commonwealth v. Sanderson, 
    398 Mass. 761
    , 765-767 (1986).     See
    generally Terry v. Ohio, 
    392 U.S. 1
    (1968).   But that is not
    what happens with a Federal immigration detainer.   When a
    Massachusetts custodian holds an individual solely on the basis
    of a civil detainer, the custodian has no investigatory purpose.
    Indeed, by its very nature, the detainer comes into play only if
    and when there is no other basis for the State authorities to
    continue to hold the individual (e.g., after he or she has
    posted bail or been ordered released on personal recognizance;
    or after he or she has completed serving the committed time on a
    criminal sentence; or, as in this case, after pending charges
    have been dismissed).    The sole purpose of the detention is to
    maintain physical custody of the individual, so that he or she
    remains on the premises until the Federal immigration
    authorities arrive and take him or her into Federal custody to
    face possible removal.   Moreover, the requested detention is not
    necessarily brief.   The department, by its detainer, asks for a
    20
    detention of up to two full days.
    What happened in this case, therefore, was plainly an
    arrest within the meaning of Massachusetts law.     Lunn was
    physically detained in a holding cell, against his will, for
    several hours.   He was otherwise entitled to be free, as no
    criminal charges were then pending against him and there was no
    other basis under Massachusetts law to hold him.    The sole basis
    for holding him was the civil immigration detainer.     The
    question, then, is whether the court officers who held him had
    the authority to arrest him on the basis of a civil detainer.
    5.    Authority of court officers to arrest.   Court officers
    in Massachusetts, while on court house premises, have the same
    power to arrest as Massachusetts police officers.     G. L. c. 221,
    § 70A.19   The authority to arrest is generally controlled by
    Massachusetts common law and statutes, which confer the power
    and also define the limits of that power.     Our State law may
    authorize Massachusetts officers to enforce Federal statutes and
    make arrests for Federal offenses (unless preempted by Federal
    law), but it need not do so.    Commonwealth v. Craan, 
    469 Mass. 24
    , 33 (2014), and cases cited.     In the absence of a Federal
    19
    "Court officers and those authorized to act as court
    officers within the judicial branch may perform police duties
    and have police powers in or about the areas of the court to
    which they have been assigned when so designated by the chief
    justice of the trial court, the chief justice of the supreme
    judicial court or the chief justice of the appeals court, as
    appropriate." G. L. c. 221, § 70A.
    21
    statute granting State officers the power to arrest for a
    Federal offense, their authority to do so is a question of State
    law.    
    Id. See United
    States v. Di Re, 
    332 U.S. 581
    , 589-590
    (1948) (authority of State officers to make arrests for Federal
    crimes is, absent Federal statutory instruction, matter of State
    law); Gonzales v. Peoria, 
    722 F.2d 468
    , 475-476 (9th Cir. 1983),
    overruled on other grounds, Hodgers-Durgin v. De La Vina, 
    199 F.3d 1037
    , 1040 n.1 (9th Cir. 1999) (concluding that Arizona
    officers had authority as matter of State law to enforce
    criminal provisions of Federal immigration law).       We must
    therefore carefully examine Massachusetts common law,
    Massachusetts statutory law, and any Federal statutory law that
    may possibly give Massachusetts officers the power to arrest in
    these circumstances.
    a.     Massachusetts common law.   Under the common law of
    Massachusetts, police officers have the authority to make
    warrantless arrests, but only for criminal offenses, and then
    only in limited circumstances.      First, an officer has authority
    to arrest without a warrant any person whom he or she has
    probable cause to believe has committed a felony.       See
    Commonwealth v. Gernrich, 
    476 Mass. 249
    , 253 (2017);
    Commonwealth v. Hason, 
    387 Mass. 169
    , 173 (1982).       Second, an
    officer has authority to arrest without a warrant any person who
    commits a misdemeanor, provided the misdemeanor involves an
    22
    actual or imminent breach of the peace, is committed in the
    officer's presence, and is ongoing at the time of the arrest or
    only interrupted by the arrest.   See Commonwealth v. Jewett, 
    471 Mass. 624
    , 629-630 (2015); Commonwealth v. Howe, 
    405 Mass. 332
    ,
    334 (1989); Muniz v. Mehlman, 
    327 Mass. 353
    , 357 (1951);
    Commonwealth v. Gorman, 
    288 Mass. 294
    , 297-299 (1934), and
    numerous authorities cited.
    "Breach of the peace" in this context generally means an
    act that causes a public disturbance or endangers public safety
    in some way.   See, e.g., 
    Jewett, 471 Mass. at 629-630
    (reckless
    operation of motor vehicle, including erratic driving on public
    streets, near-collision with parked vehicle, failure to stop,
    and chase through residential area, involved breach of peace);
    
    Howe, 405 Mass. at 334
    (operating motor vehicle while under
    influence of alcohol); Commonwealth v. Mullins, 31 Mass. App.
    Ct. 954, 954-955 (1991) (blaring loud music "turned up to full
    blast" and shouting obscenities from apartment window, thereby
    disturbing neighbors and resulting in gathering of neighbors
    outside).   See also Black's Law Dictionary at 189 (6th ed. 1990)
    (defining "[b]reach of the peace" as "violations of public peace
    or order and acts tending to a disturbance thereof . . .
    disorderly, dangerous conduct disrupting of public peace"); 4
    23
    C.E. Torcia, Wharton's Criminal Law § 503 (15th ed. 1996).20
    That is the sum and substance of the power of police
    officers to make warrantless arrests under Massachusetts common
    law.    Conspicuously absent from our common law is any authority
    (in the absence of a statute) for police officers to arrest
    generally for civil matters, let alone authority to arrest
    20
    The breach of the peace requirement for a misdemeanor
    arrest has its roots in English common law, see Regina v.
    Tooley, 2 Ld. Raym. 1296, 1301, 92 Eng. Rep. 349, 352-353 (K.B.
    1710), quoted with approval in Commonwealth v. Gorman, 
    288 Mass. 294
    , 297 (1934), and has become firmly embedded in the common
    law of Massachusetts. "Arrest without a warrant for a
    misdemeanor not amounting to a breach of the peace was
    impermissible at common law." Commonwealth v. Conway, 2 Mass.
    App. Ct. 547, 550 (1974). Not only have our cases cited the
    breach of the peace requirement repeatedly as a correct
    statement of our common law, but we have also consistently
    enforced the requirement, when necessary, by holding warrantless
    misdemeanor arrests that were not authorized by statute and that
    did not involve any breach of the peace to be unlawful. See,
    e.g., Commonwealth v. Mekalian, 
    346 Mass. 496
    , 497-498 (1963)
    (misdemeanor offense of registering bets without license did not
    involve breach of peace; arrest without warrant or statutory
    authorization was unlawful, resulting in suppression of evidence
    seized incident to arrest); Commonwealth v. Wright, 
    158 Mass. 149
    , 158-159 (1893) (misdemeanor offense of possessing "short
    lobsters" with intent to sell did not involve breach of peace;
    arrest without warrant or statutory authorization was unlawful);
    Commonwealth v. O'Connor, 
    7 Allen 583
    , 584-585 (1863) (arrest
    for drunkenness in private that did not create breach of public
    peace was unlawful); Commonwealth v. Ubilez, 
    88 Mass. App. Ct. 814
    , 820-821 (2016) (misdemeanor offense of operating motor
    vehicle with revoked or suspended registration, absent evidence
    of erratic or negligent operation or other danger to public, did
    not involve breach of peace; arrest without warrant or statutory
    authorization unlawful). Contrast Atwater v. Lago Vista, 
    532 U.S. 318
    , 327-355 (2001) (surveying common law; holding that
    Fourth Amendment to United States Constitution does not require
    breach of peace for warrantless misdemeanor arrest).
    24
    specifically for Federal civil immigration matters.21,22
    b.   Massachusetts statutory law.   Apart from the common
    21
    The parties and the United States, as amicus curiae, have
    brought to our attention a change in the standard immigration
    detainer form that occurred shortly before the oral argument in
    this case, and the fact that immigration detainers are now
    accompanied by either Form I-200 or Form I-205. See note 
    17, supra
    . The latter forms are Federal administrative warrants
    issued by Federal immigration officials to other Federal
    immigration officials. They appear to have no bearing on the
    question whether Massachusetts officers have authority under
    Massachusetts law to make civil immigration arrests. They do
    not transform the removal process into a criminal process, nor
    do they change the fact that Massachusetts officers, absent a
    statute, have no common-law authority to make civil arrests.
    Simply stated, the fact that a Federal officer may have the
    authority under Federal law to take custody of an individual
    pursuant to one of these forms for removal purposes does not
    mean that Massachusetts officers have the authority under
    Massachusetts law to do so.
    We note that the Federal government's stated reason for now
    issuing administrative warrants with civil immigration detainers
    is to counteract a recent ruling by a Federal District Court
    judge that, in the absence of a showing of risk of flight,
    invalidated arrests made by Federal officers pursuant to
    detainers as impermissible warrantless arrests under the act.
    See Moreno v. Napolitano, 
    213 F. Supp. 3d 999
    , 1005-1009 & n.2
    (N.D. Ill. 2016), quoting 8 U.S.C. § 1357(a)(2) (authorizing
    Federal immigration officers to arrest without warrant only if,
    among other things, they have "reason to believe that the alien
    so arrested . . . is likely to escape before a warrant can be
    obtained for his arrest"). See also United States Immigration
    and Customs Enforcement, Policy Number 10074.2: Issuance of
    Immigration Detainers by ICE Immigration Officers § 2.4, at 2
    n.2 (Mar. 24, 2017).
    22
    As we have said, this case concerns detention based
    solely on a civil immigration detainer. This was not a
    situation where a detainer provided an officer with probable
    cause that a Federal criminal offense had been committed. We
    therefore do not address the authority or obligations of
    Massachusetts officers who, by a detainer or otherwise, acquire
    information of a Federal criminal offense.
    25
    law, the parties and the amici have directed us to numerous and
    varied Massachusetts statutes that authorize arrests by police
    officers and other officials, both with and without warrants.
    See, e.g., G. L. c. 12, § 11J (constitutional and civil rights
    violations); G. L. c. 41, § 98 (public disturbances and
    disorder); G. L. c. 90, § 21 (certain motor vehicle offenses);
    G. L. c. 91, § 58 (misdemeanors committed in or upon certain
    Massachusetts waterways); G. L. c. 94C, § 41 (controlled
    substance offenses); G. L. c. 209A, § 6 (7) (domestic violence
    offenses); G. L. c. 269, § 10 (h) (unlicensed firearm offenses);
    G. L. c. 276, § 28 (various misdemeanors); G. L. c. 279, § 3
    (probation violations).   However, no party or amicus has
    identified a single Massachusetts statute that authorizes a
    Massachusetts police officer or court officer, directly or
    indirectly, to arrest in the circumstances here, based on a
    Federal civil immigration detainer.   Simply put, there is no
    such statute in Massachusetts.
    The parties and amici have also identified several
    Massachusetts statutes that authorize the noncriminal detention
    of individuals in certain circumstances.   See, e.g., G. L.
    c. 111B, § 8 (protective custody for incapacitated and
    intoxicated persons); G. L. c. 123, § 12 (emergency
    hospitalization due to mental illness); G. L. c. 123, § 35
    (involuntary commitment of persons with alcohol and substance
    26
    abuse disorders); G. L. c. 123A (sexually dangerous persons);
    G. L. c. 215, §§ 34, 34A (civil contempt for noncompliance with
    spousal or child support order); G. L. c. 276, §§ 45-49
    (material witnesses in criminal proceedings).    Again, however,
    none of these statutes either directly or indirectly authorizes
    the detention of individuals based solely on a Federal civil
    immigration detainer.
    c.   Argument of the United States.    The United States, as
    amicus curiae, asks us to hold that officers in Massachusetts
    have "inherent authority" to carry out the detention requests
    made in Federal civil immigration detainers -- essentially, to
    make arrests for Federal civil immigration matters as a form of
    cooperation with the Federal authorities.     See, e.g., United
    States v. Santana-Garcia, 
    264 F.3d 1188
    , 1193-1194 (10th Cir.
    2001) (State and local police officers have "implicit authority"
    to investigate and arrest for violations of Federal immigration
    law, presumably both civil and criminal, absent State or local
    law to contrary).23   But see 
    Gonzales, 722 F.2d at 475
    (State law
    23
    We do not see any meaningful difference between "inherent
    authority" (the term used by the United States in its brief) and
    "implicit authority" (the term used by the United States Court
    of Appeals for the Tenth Circuit). The term "inherent
    authority" likely derives from a memorandum of the Department of
    Justice's Office of Legal Counsel, dated April 3, 2002, which
    espoused the theory in that way. The 2002 memorandum
    essentially reversed course from a 1996 opinion of the Office of
    Legal Counsel, which had reflected the Department of Justice's
    historical view that, absent express authorization, State and
    27
    must affirmatively grant authority to State and local officers
    to enforce Federal immigration law before arrest can be made on
    that basis).
    "The assertion that [S]tate and local officials have
    inherent civil enforcement authority has been strongly contested
    in the academy, in police departments, and in the courts"
    (footnotes omitted).     Armacost, "Sanctuary" Laws:   The New
    Immigration Federalism, 
    2016 Mich. L
    . Rev. 1197, 1211
    (Armacost).    Moreover, it is questionable whether a theory of
    "inherent" or "implicit" State authority continues to be viable
    in the immigration context after the United States Supreme
    Court's decision in 
    Arizona, supra
    , which severely curtailed, on
    Federal preemption grounds, the power of State and local police
    to act in Federal immigration matters.     See I.J. Kurzban,
    Immigration Law Sourcebook 425 (15th ed. 2016) ("The notion of
    'inherent authority' to arrest and detain undocumented persons
    . . . has been seriously undermined" by Supreme Court's
    holding); Armacost, supra at 1211-1215 (arguing that inherent
    authority theory has been foreclosed by Supreme Court's
    decision).     Assuming that the theory remains viable, and has not
    local police lack authority to arrest or detain aliens solely
    for purposes of civil immigration proceedings. See Armacost,
    "Sanctuary" Laws: The New Immigration Federalism, 
    2016 Mich. L
    .
    Rev. 1197, 1210-1211; Lewis, Gass, von Briesen, Master, &
    Wishnie, Authority of State and Local Officers to Arrest Aliens
    Suspected of Civil Infractions of Federal Immigration Law, 7
    Bender's Immigr. Bull. 944, 944-945 (Aug. 1, 2002).
    28
    been foreclosed by the Supreme Court's decision in Arizona, a
    point of Federal law that we need not decide, we nevertheless
    decline to adopt it as a matter of Massachusetts law as a basis
    for authorizing civil immigration arrests.
    As we have said, the common law and the statutes of this
    Commonwealth are what establish and limit the power of
    Massachusetts officers to arrest.   There is no history of
    "implicit" or "inherent" arrest authority having been recognized
    in Massachusetts that is greater than what is recognized by our
    common law and the enactments of our Legislature.   Where neither
    our common law nor any of our statutes recognizes the power to
    arrest for Federal civil immigration offenses, we should be
    chary about reading our law's silence as a basis for
    affirmatively recognizing a new power to arrest -- without the
    protections afforded to other arrestees under Massachusetts law24
    -- under the amorphous rubric of "implicit" or "inherent"
    authority.   Recognizing a new common-law power to effect a
    Federal civil immigration arrest would also create an anomaly in
    our common law:   a State or local police officer in
    Massachusetts (or, as in this case, a court officer) would be
    24
    Among other things, an individual arrested without a
    warrant in Massachusetts has a statutory right to be considered
    for bail and, if not admitted to bail, a constitutional right to
    a prompt determination of probable cause to arrest, made by a
    neutral magistrate, generally within twenty-four hours of
    arrest. See Jenkins v. Chief Justice of the Dist. Court Dep't,
    
    416 Mass. 221
    , 238-245 (1993).
    29
    able to effect a warrantless arrest for a criminal misdemeanor
    only if it involves a breach of the peace (see part 
    5.a, supra
    ),
    but would be able to arrest for a Federal civil matter without
    any such limitation; in other words, the officer would have
    greater authority to arrest for a Federal civil matter than for
    a State criminal offense.   See generally Bach, State Law to the
    Contrary?   Examining Potential Limits on the Authority of State
    and Local Law Enforcement to Enforce Federal Immigration Law, 22
    Temp. Pol. & Civ. Rts. L. Rev. 67 (2012).
    The prudent course is not for this court to create, and
    attempt to define, some new authority for court officers to
    arrest that heretofore has been unrecognized and undefined.     The
    better course is for us to defer to the Legislature to establish
    and carefully define that authority if the Legislature wishes
    that to be the law of this Commonwealth.25
    The United States, as amicus, also points to 8 U.S.C.
    § 1357(g)(10) for the proposition that State officers may
    cooperate with Federal immigration authorities by detaining and
    arresting pursuant to an immigration warrant.   To understand
    what § 1357(g)(10) accomplishes, it is necessary to consider
    § 1357(g) as a whole.
    25
    We express no view on the constitutionality of any such
    statute, or whether such a statute would be preempted by Federal
    law. It would be premature for us to rule on those questions
    unless and until a specific statute is enacted.
    30
    Section 1357(g) generally concerns situations in which
    State and local officers can perform functions of a Federal
    immigration officer.   Section 1357(g)(1) provides specifically
    that States and their political subdivisions may enter into
    written agreements with the Federal government that allow State
    or local officers to perform functions of an immigration officer
    "at the expense of the State or political subdivision and to the
    extent consistent with State and local law."   Such agreements
    are commonly referred to as "287(g) agreements," referring to
    the section of the act that authorizes them, § 287(g), which is
    codified in 8 U.S.C. § 1357(g).   Among other things, State and
    local officers performing Federal functions under such
    agreements must be trained in the enforcement of Federal
    immigration laws, must adhere to the Federal laws, may use
    Federal property and facilities to carry out their functions,
    and are subject to the supervision and direction of the United
    States Attorney General.   8 U.S.C. § 1357(g)(2)-(5).    No State
    or political subdivision is required to enter into such an
    agreement.   See 8 U.S.C. § 1357(g)(9).26
    The specific language relied on by the United States in
    this case is the final paragraph of § 1357(g), which provides:
    26
    This case does not involve such a written agreement. We
    therefore express no view whether the detention of an individual
    pursuant to a Federal civil immigration detainer by a
    Massachusetts officer who is operating under such an agreement
    would be lawful.
    31
    "(10) Nothing in this subsection shall be
    construed to require an agreement under this
    subsection in order for any officer or employee of a
    State or political subdivision of a State . . . (A) to
    communicate with the Attorney General regarding the
    immigration status of any individual, including
    reporting knowledge that a particular alien is not
    lawfully present in the United States; or (B)
    otherwise to cooperate with the Attorney General in
    the identification, apprehension, detention, or
    removal of aliens not lawfully present in the United
    States."
    Significantly, the United States does not contend that
    § 1357(g)(10) affirmatively confers authority on State and local
    officers to make arrests pursuant to civil immigration
    detainers, where none otherwise exists.    See 
    Craan, 469 Mass. at 33
    (recognizing that Federal statute may confer authority on
    State officers to arrest for Federal offenses).   See also Di 
    Re, 332 U.S. at 589-590
    .    In other words, it does not claim that
    § 1357(g)(10) is an independent source of authority for State or
    local officers to make such an arrest.    Rather, it cites
    § 1357(g)(10) as a part of its argument that State and local
    officers have inherent authority to make these kinds of arrests;
    specifically, it relies on this provision for the proposition
    that such arrests, when performed at the request of the Federal
    government, are a permissible form of State participation in the
    Federal immigration arena that would not be preempted by Federal
    law.   We have already rejected the argument that Massachusetts
    officers have an inherent authority to arrest that exceeds what
    32
    is conferred on them by our common law and statutes.
    Further, it is not reasonable to interpret § 1357(g)(10) as
    affirmatively granting authority to all State and local officers
    to make arrests that are not otherwise authorized by State law.
    Section 1357(g)(10), read in the context of § 1357(g) as a
    whole, simply makes clear that State and local authorities, even
    without a 287(g) agreement that would allow their officers to
    perform the functions of immigration officers, may continue to
    cooperate with Federal immigration officers in immigration
    enforcement to the extent they are authorized to do so by their
    State law and choose to do so.27
    27
    Nothing in the legislative history of 8 U.S.C.
    § 1357(g) or the department's very thorough "Guidance on State
    and Local Governments' Assistance in Immigration Enforcement and
    Related Matters" (accessible at https://dhs.gov/xlibrary/assets
    /guidance-state-local-assistance-immigration-enforcement.pdf
    [https://perma.cc/S7UA-6S4E]), suggests that § 1357(g)(10)
    constitutes an affirmative grant of immigration arrest authority
    to States.
    The United States cites three cases that mention
    § 1357(g)(10), but none of them resolves the exact question
    presented here, which is whether the statute confers authority
    on State officers to arrest on a Federal civil immigration
    detainer even where State law does not authorize such an arrest.
    Those cases principally addressed whether the actions of State
    officers were done in cooperation with Federal officers, or
    unilaterally such that they would be preempted by Federal law.
    Those courts were not asked to decide whether State officers are
    independently authorized by § 1357(g)(10) to do acts, in the
    name of "cooperation," that they are not authorized to do under
    State law. See United States v. Ovando-Garzo, 
    752 F.3d 1161
    ,
    1163-1164 (8th Cir. 2014) (holding that North Dakota highway
    patrol trooper who detained suspect at request of United States
    Border Patrol agent acted cooperatively pursuant to
    33
    In those limited instances where the act affirmatively
    grants authority to State and local officers to arrest, it does
    so in more explicit terms than those in § 1357(g)(10).   See,
    e.g., 8 U.S.C. § 1103(a)(10) (permitting Attorney General to
    authorize State and local officers, with consent of their
    department or agency, to perform all powers and duties of
    immigration officers in emergency cases of "actual or imminent
    mass influx of aliens off the coast of the United States, or
    near a land border"); 
    id. at §
    1252c (authorizing State and
    local officers, "to the extent permitted by State and local
    law," to arrest and detain convicted felons who have been
    previously deported but are presently in country illegally); 
    id. § 1357[g][10],
    not unilaterally, and thus did not exceed scope
    of authority so as to trigger preemption; no issue whether
    officer's actions were authorized by North Dakota law); Santos
    v. Frederick County Bd. of Comm'rs, 
    725 F.3d 451
    , 465-466 (4th
    Cir. 2013), cert. denied, 
    134 S. Ct. 1541
    (2014) (holding that
    detention by State deputy sheriffs before confirmation that
    immigration warrant was active was not cooperation for purposes
    of § 1357[g][10], thereby triggering preemption, because arrest
    was not made pursuant to Federal direction; no issue whether
    detention was authorized by Maryland law); United States v.
    Quintana, 
    623 F.3d 1237
    (8th Cir. 2010) (noting in single
    sentence that North Dakota highway patrol trooper who stopped
    defendant for traffic violation was authorized by § 1357[g][10]
    to assist Federal agent in arresting detainee; no issue whether
    detention was authorized under State law).
    We have also considered other cases that mention
    § 1357(g)(10). None of them addresses the specific question we
    have here, i.e., whether the statute independently and
    affirmatively confers authority on State officers to arrest on
    immigration detainers where such an arrest is not authorized by
    State law.
    34
    at § 1324(c) (authorizing arrest, by designated immigration
    officers "and all other officers whose duty it is to enforce
    criminal laws," of persons who commit criminal offense of
    illegally bringing in, transporting, or harboring aliens); 
    id. at §
    1357(g)(1)-(9) (authorizing State and local officers
    trained pursuant to written agreements with Federal government
    to perform duties of immigration officers).
    Conclusion.   The case is remanded to the county court for
    entry of a judgment stating that Lunn's case is dismissed as
    moot, and declaring that Massachusetts law provides no authority
    for Massachusetts court officers to arrest and hold an
    individual solely on the basis of a Federal civil immigration
    detainer, beyond the time that the individual would otherwise be
    entitled to be released from State custody.
    So ordered.