Thomas Matherly v. Justin Andrews , 817 F.3d 115 ( 2016 )


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  •                                PUBLISHED
    UNITED STATES COURT OF APPEALS
    FOR THE FOURTH CIRCUIT
    No. 14-7691
    THOMAS SHANE MATHERLY,
    Petitioner - Appellant,
    v.
    JUSTIN ANDREWS,
    Respondent - Appellee.
    Appeal from the United States District Court for the Eastern
    District of North Carolina, at Raleigh.  James C. Dever III,
    Chief District Judge. (5:13-hc-02077-D)
    Argued:   January 28, 2016                  Decided:   March 16, 2016
    Before TRAXLER, Chief Judge, and AGEE and WYNN, Circuit Judges.
    Affirmed in part; reversed and remanded in part by published
    opinion. Chief Judge Traxler wrote the opinion, in which Judge
    Agee and Judge Wynn joined.
    ARGUED: Joshua Robbins, Brian Remondino, UNIVERSITY OF VIRGINIA
    SCHOOL OF LAW, Charlottesville, Virginia, for Appellant. Michael
    Lockridge, BUREAU OF PRISONS, Butner, North Carolina, for
    Appellee.    ON BRIEF: Stephen L. Braga, Appellate Litigation
    Clinic, UNIVERSITY OF VIRGINIA SCHOOL OF LAW, Charlottesville,
    Virginia, for Appellant.      Thomas G. Walker, United States
    Attorney, R.A. Renfer, Jr., Assistant United States Attorney,
    OFFICE OF THE UNITED STATES ATTORNEY, Raleigh, North Carolina,
    for Appellee.
    TRAXLER, Chief Judge:
    Thomas    Shane    Matherly    appeals         from   the    district    court’s
    order   granting        summary     judgment         to     the    respondent       (the
    “government”) on his petition for a writ of habeas corpus, filed
    under 
    28 U.S.C. § 2241
    .           In the petition, Matherly challenges
    his   prior    civil    commitment    as       a    “sexually     dangerous    person”
    under 
    18 U.S.C. § 4248
     of the Adam Walsh Child Protection and
    Safety Act of 2006 (the “Act”).                See United States v. Matherly,
    514 Fed. App’x. 287 (4th Cir. 2013) (per curiam).                             For the
    following reasons, we affirm the district court’s decision in
    part, and reverse and remand in part.
    I.
    A.
    The   Adam   Walsh    Act   authorizes          the   civil   commitment      of,
    inter   alia,    “sexually    dangerous            person[s]”     who   are   “in   the
    custody of the Bureau of Prisons.”                   
    18 U.S.C. § 4248
    (a).            The
    civil commitment process is initiated when the Attorney General,
    his designee, or the Director of the Bureau of Prisons (“BOP”),
    certifies to the district court where the individual is confined
    that the individual “is a sexually dangerous person.”                         
    Id.
        The
    certification automatically stays the inmate’s release pending a
    hearing.      See 
    id.
    A “sexually dangerous person” is defined as “a person who
    has engaged or attempted to engage in sexually violent conduct
    2
    or child molestation and who is sexually dangerous to others.”
    
    18 U.S.C. § 4247
    (a)(5).                     A person is “sexually dangerous to
    others” if “the person suffers from a serious mental illness,
    abnormality, or disorder as a result of which he would have
    serious difficulty in refraining from sexually violent conduct
    or   child        molestation        if    released.”           
    18 U.S.C. § 4247
    (a)(6).
    This “serious difficulty” prong “refers to the degree of the
    person’s          ‘volitional        impairment,’           which     impacts    the     person’s
    ability to refrain from acting upon his deviant sexual desires.”
    United       States        v.   Hall,     
    664 F.3d 456
    ,     463   (4th      Cir.    2012)
    (quoting Kansas v. Hendricks, 
    521 U.S. 346
    , 358 (1997)).
    “If, after [a] hearing, the [district] court finds by clear
    and convincing evidence that the person is a sexually dangerous
    person, the court shall commit the person to the custody of the
    Attorney          General,”       either         for        release    to    a       state    civil
    commitment          system      or    to     a    federal        facility        until       it   is
    determined that the person “is no longer sexually dangerous to
    others, or will not be sexually dangerous to others if released
    under        a     prescribed         regimen          of     medical,      psychiatric,          or
    psychological care or treatment.”                           
    18 U.S.C. § 4248
    (d); see also
    United States v. Timms, 
    664 F.3d 436
    , 439 (4th Cir. 2012).
    B.
    In       October    2003,     Matherly         pled     guilty      to   one    count     of
    possession of child pornography and was sentenced to 41 months
    3
    imprisonment, followed by a 3-year term of supervised release.
    See     18    U.S.C.      §    2252A(a)(5)(B).           Shortly      thereafter,     the
    district court also revoked Matherly’s supervised release from
    an    earlier     conviction          for   interstate    travel      to   engage    in   a
    sexual act with a minor, see 
    18 U.S.C. § 2423
    , and sentenced him
    to a consecutive 6-month term of imprisonment.                             Matherly was
    committed to the custody of the BOP to serve his aggregate 47-
    month prison term.             See 
    18 U.S.C. § 3621
    (a).
    From October 31, 2003, to November 22, 2006, Matherly was
    serving his term of imprisonment in a BOP facility.                          With prior
    time served, and assuming that he earned the “good time” credit
    available under 
    18 U.S.C. § 3624
    (b), Matherly was eligible to be
    released to supervision on November 23, 2006.                      See J.A. 33; see
    also United States v. Comstock, 
    627 F.3d 513
    , 517 (4th Cir.
    2010)        (noting     that     Matherly’s      projected     release       date    was
    November       23,     2006). 1       However,    it   now   appears       that   because
    November       23,     2006,    was    Thanksgiving      Day,   the    BOP   originally
    1
    By statute, “[a] prisoner shall be released by the Bureau
    of Prisons on the date of the expiration of the prisoner’s term
    of imprisonment, less any time credited toward the service of
    the prisoner’s sentence.”    
    18 U.S.C. § 3624
    (a).    The BOP may
    grant “good-time credit” of up to 54 days per year, see 
    18 U.S.C. § 3624
    (b)(1), and such “credit awarded . . . shall vest
    on the date the prisoner is released from custody,” 
    18 U.S.C. § 3624
    (b)(2).   However, “[n]othing in [subsection 3624] shall be
    construed to limit or restrict the authority of the Director of
    the Bureau of Prisons under section 3621.”          
    18 U.S.C. § 3624
    (c)(4).     Without application of any good-time credit,
    Matherly’s sentence would have expired on May 26, 2007.
    4
    intended to exercise its discretion to release Matherly from his
    criminal confinement and to supervised release one day early –
    on November 22, 2006.           See J.A. 31 (noting that Matherly “was
    scheduled for release” on November 22, 2006); see also 
    18 U.S.C. § 3624
    (a) (“If the date for a prisoner’s release falls on a
    Saturday,     a   Sunday,   or    a     legal    holiday       at    the    place    of
    confinement, the prisoner may be released by the Bureau on the
    last   preceding     weekday.”).        On   that     same   day,        however,   the
    government certified Matherly as a “sexually dangerous person”
    under 
    18 U.S.C. § 4248
    , automatically staying his release from
    the custody of the BOP.
    During the ensuing civil commitment proceedings, Matherly
    “conce[ded] that he previously engaged in child molestation and
    suffers from a serious mental disorder,” leaving the government
    with the task of “prov[ing] by clear and convincing evidence
    only that Matherly ‘would have serious difficulty in refraining
    from    sexually      violent     conduct       or     child        molestation      if
    released.’”       Matherly, 514 Fed. App’x. at 288 (quoting 
    18 U.S.C. § 4247
    (a)(6)).       On   May    3,    2012,       following      an     evidentiary
    hearing, the district court found that Matherly was a “sexually
    dangerous person” under the Act and ordered that he be committed
    5
    to the custody of the Attorney General.           We affirmed.        See 
    id. at 289
    . 2
    On April 1, 2013, Matherly filed a pro se petition for a
    writ of habeas corpus under 
    28 U.S.C. § 2241
    , alleging, among
    other things, that the Adam Walsh Act had been impermissibly
    applied retroactively to him and that, in any event, he was not
    “in the custody of the Bureau of Prisons” within the meaning of
    § 4248(a) when the government filed the § 4248 certificate.                 The
    government moved to dismiss the petition or, in the alternative,
    for   summary   judgment,   which   the   district     court    granted.     On
    appeal, we appointed counsel for Matherly.
    II.
    We begin with Matherly’s claim that the Adam Walsh Act was
    impermissibly applied to him because the Act became effective
    after he was convicted of his criminal offenses and committed to
    the custody of the BOP.
    The   commitment   proceedings      authorized    under    §   4248   are
    “civil - not criminal” in nature.           See Timms, 
    664 F.3d at 456
    .
    They are not intended to and do not punish an inmate for prior
    2The delay between the filing of Matherly’s certificate and
    the order of civil commitment was the product of extended
    litigation    by    Matherly    and    others    regarding    the
    constitutionality of the Adam Walsh Act.    See United States v.
    Comstock, 
    627 F.3d 513
     (4th Cir. 2010); United States v.
    Comstock, 
    551 F.3d 274
     (4th Cir. 2009), rev’d in part, 
    560 U.S. 126
     (2010).
    6
    criminal offenses.               See 
    id.
            Accordingly, the Double Jeopardy
    and Ex Post Facto Clauses do not provide an avenue for release.
    See   id.     at       455-56;    see    also   Hendricks,       
    521 U.S. at 370-71
    .
    Matherly does not contend otherwise.                          Rather, he claims that
    application of the Act to him violated the general presumption
    against the retroactive application of newly enacted statutes to
    prior conduct.               See Landgraf v. USI Film Prods., 
    511 U.S. 244
    ,
    265 (1994).         We disagree.
    “[T]he permissibility of applying a statute retroactively
    is a ‘pure question of law,” Jaghoori v. Holder, 
    772 F.3d 764
    ,
    769    (4th      Cir.        2014),     and    “is,    at     bottom,    a     question    of
    congressional intent,” 
    id. at 770
    .                       When determining whether a
    statute       has       been     impermissibly         applied      retrospectively,       we
    engage      in     a    three-step       inquiry       and    apply     “‘a    commonsense,
    functional judgment.’”                  Jaghoori, 772 F.3d at 771 (quoting INS
    v.    St.   Cyr,        
    533 U.S. 289
    ,    321    (2001)).         First,    we    “must
    determine          ‘whether       Congress       has     expressly       prescribed       the
    statute’s proper reach.’” Cruz v. Maypa, 
    773 F.3d 138
    , 144 (4th
    Cir. 2014) (quoting Landgraf, 
    511 U.S. at 280
    ).                                “If so, the
    inquiry ends there.”              
    Id.
         If we determine that Congress has not
    spoken with the requisite clarity, we “must decide whether the
    statute     would        operate       retroactively,        ‘i.e.,    whether    it    would
    impair      rights       a     party    possessed      when    he     acted,    increase    a
    party’s liability for past conduct, or impose new duties with
    7
    respect    to    transactions           already        completed.’”            
    Id.
         (emphasis
    added)    (quoting      Landgraf,          
    511 U.S. at 280
    ).         However,    “[a]
    statute does not operate retrospectively merely because it is
    applied in a case arising from conduct antedating the statute’s
    enactment,       or     upsets         expectations           based       on     prior     law.”
    Landgraf, 
    511 U.S. at 269
     (citation and internal quotation marks
    omitted).       Finally, if we determine that “the statute does have
    a    retroactive      effect,”        we   will       not     apply    it      “‘absent    clear
    congressional intent favoring such a result.’”                                   
    Id.
     (quoting
    Landgraf, 
    511 U.S. at 280
    ).
    We think Congress sufficiently expressed its intent that
    the Adam Walsh Act apply to all persons in the BOP’s custody who
    would pose a current threat to the public if released.                                    See 
    18 U.S.C. § 4247
    (a)(5), (6) (defining a “sexually dangerous person”
    in part as one “who is sexually dangerous to others,” because
    “the person suffers from a serious mental illness, abnormality,
    or    disorder     as    a     result       of       which     he     would     have     serious
    difficulty in refraining from sexually violent conduct or child
    molestation if released”).                 There is “[n]othing on the face of
    the statute [that] suggests that [Congress] sought to create
    anything     other      than      a    civil     commitment           scheme     designed     to
    protect the public from [a present threat of] harm.”                                 Hendricks,
    
    521 U.S. at 361
    .             There is likewise nothing that suggests that
    Congress     intended        to       protect        the     public    from      a     “sexually
    8
    dangerous” person who might be committed to the custody of the
    BOP in the future, but not from a “sexually dangerous” person
    who is already in its custody and nearer to release.
    But even if we were to hold that Congress did not speak
    with the requisite clarity regarding the statute’s proper scope,
    Matherly’s      challenge         fails   because          the    Act   does    not    operate
    retroactively.         In Hendricks, the United States Supreme Court
    rejected a challenge to a state statute that also permitted the
    civil    commitment        of     “sexually        violent       predator[s]”      who   were
    presently confined by the state but scheduled for release.                                
    Id. at 352
     (internal quotation marks omitted).                          A “sexually violent
    predator” was defined as “any person who has been convicted of
    or charged with a sexually violent offense and who suffers from
    a mental abnormality or personality disorder which makes the
    person     likely     to     engage       in     the       predatory     acts    of     sexual
    violence.”       
    Id.
     (internal quotation marks omitted).                              As with
    § 4248    of    the   Adam      Walsh     Act,     the     civil    commitment        “inquiry
    [was]    thus    two-fold,        requiring        .   .    .    both   retrospective     and
    prospective findings.”              Timms, 
    664 F.3d at 439
    .                    Nevertheless,
    the     Court   held       that    the     statute         “clearly      [did]    not    have
    retroactive effect.”            Hendricks, 
    521 U.S. at 371
    .
    [T]he Act does not impose punishment; thus, its
    application does not raise ex post facto concerns.
    Moreover, the Act clearly does not have retroactive
    effect.      Rather,  the   Act   permits  involuntary
    confinement based upon a determination that the person
    9
    currently both suffers from a ‘mental abnormality’ or
    ‘personality disorder’ and is likely to pose a future
    danger to the public.       To the extent that past
    behavior is taken into account, it is used . . .
    solely for evidentiary purposes.
    
    Id. at 370-71
     (third emphasis added); see Landgraf, 
    511 U.S. at 266
       (noting       that       “the     antiretroactivity              principle       finds
    expression in several provisions of our Constitution,” including
    “[t]he Ex Post Facto Clause”); Cruz, 773 F.3d at 145 (noting
    that “Landgraf and the Ex Post Facto Clause are informed by the
    same retroactivity concerns”).
    Like the statute at issue in Hendricks, the Adam Walsh Act
    “does not seek to ‘affix culpability for prior’ acts.                                 Instead
    it simply ‘uses’ prior acts ‘solely for evidentiary purposes’ to
    support a finding of a person’s mental abnormality or future
    dangerousness       or    both.”       Comstock,         
    627 F.3d at 523
        (quoting
    Hendricks,    
    521 U.S. at 362
    ).        The    Act    “do[es]     not      operate
    retroactively,”          but   rather     “address[es]           dangers      that      arise
    postenactment.”          Vartelas v. Holder, 
    132 S. Ct. 1479
    , 1489 n.7
    (2012); see 
    id.
     (noting that “laws prohibiting persons convicted
    of a sex crime against a victim under 16 years of age from
    working in jobs involving frequent contact with minors, and laws
    prohibiting     a    person     who     has    been       adjudicated       as    a    mental
    defective or who has been committed to a mental institution from
    possessing guns . . . do not operate retroactively.                                   Rather,
    they address dangers that arise postenactment:                              sex offenders
    10
    with a history of child molestation working in close proximity
    to   children,    and      mentally     unstable        persons      purchasing          guns”)
    (internal     quotation         marks     omitted);          see   also      Reynolds        v.
    Johnson, No. 12-55675, 
    2015 WL 9584386
     (9th Cir. Dec. 31, 2015)
    (holding that the Adam Walsh Act “‘addresses dangers that arise
    postenactment’ and therefore ‘does not operate retroactively’”)
    (alterations     omitted)        (quoting    Vartelas,         
    132 S. Ct. at
      1489
    n.7); United States v. Wetmore, 
    766 F. Supp. 2d 319
    , 337 (D.
    Mass. 2011) (rejecting retroactivity challenge to Adam Walsh Act
    because     “Supreme       Court      precedent         is     clear      that         statutes
    permitting the civil commitment of sexually dangerous persons
    are not impermissibly retroactive and do not violate the Ex Post
    Facto Clause”); cf. Matter of Jackson, 
    26 I. & N. Dec. 314
    , 318
    (BIA May 20, 2014) (“Because the Adam Walsh Act addresses the
    potential for future harm posed by . . . sexual predators to the
    beneficiaries         of   family-based          visa    petitions,          .     .    .   the
    application      of    its      provisions       to     convictions         that       occurred
    before its enactment does not have an impermissible retroactive
    effect.”).
    Accordingly,         we    affirm    the        district     court’s         grant      of
    summary judgment to the government on Matherly’s retroactivity
    claim.
    11
    III.
    Matherly      also     contends        that      his     civil     commitment        was
    improper because the BOP had already released him from its legal
    custody when the government filed the § 4248 certification.                                See
    
    18 U.S.C. § 4248
    (a); United States v. Joshua, 
    607 F.3d 379
    , 388
    (4th Cir. 2010) (holding that the term “custody” in § 4248(a)
    means not simply physical custody, but rather “legal custody”
    and, therefore, that “[t]he statutory language ‘in the custody
    of   the   Bureau    of     Prisons’    .     .   .    requires        the    BOP    to   have
    ultimate legal authority over the person’s detention”).
    The government asserted that the certification was timely
    under the Act because Matherly “was in BOP custody serving the
    last day of his criminal sentence” when it was filed.                               J.A. 27.
    In   support,     the     government        submitted        a   Declaration         of   the
    Custodian    of     Records    for     the    BOP,      referencing          and    attaching
    records from the BOP “SENTRY” database, which “tracks the status
    and activities of persons in BOP custody and provides . . .
    sentence    information,        locations         of    confinement,          and    release
    dates.”      J.A.     25.      According          to   these     records,          Matherly’s
    projected    statutory        release    date,         after     application         of   time
    served and good time credits, was November 23, 2006.                                However,
    due to the Thanksgiving holiday, Matherly’s scheduled release
    date was November 22, 2006 – the same day that the government
    filed the § 4248 certificate.
    12
    In his pro se response to the government’s motion, however,
    Matherly submitted a number of additional documents that he also
    represents       to    be    BOP    records.          Matherly     claimed       that    “the
    certificate          was   filed    after     the     expiration        of   his   sentence
    because according to a BOP Memo,” dated October 24, 2006, he was
    scheduled “to depart at 8:00 [a.m. on] November 22, 2006,” and
    “[t]he certificate was filed two hours . . . after the departure
    time,” at 10:08 a.m.               J.A. 35 (emphasis added); see also J.A.
    46.        Based upon Matherly’s interpretation of these documents,
    the    BOP      no    longer      had   legal      custody   -     or    ultimate       legal
    authority - over him when the certificate was filed because “the
    date       of    release         arrived    prior      to    the        filing     of     the
    certification,”            and    the   BOP     had     already     “processed          [his]
    paperwork for release.”             J.A. 38.
    On November 7, 2014, the district court granted summary
    judgment to the government without holding a hearing.                               In its
    order, the district court stated as follows:
    On November 22, 2006, at 9:20 a.m., the BOP
    released Matherly from custody.     Forty-eight minutes
    later, at 10:08 a.m., an Assistant United States
    Attorney for the Eastern District of North Carolina
    commenced   civil    commitment   proceedings   against
    Matherly by filing a Certification of a Sexually
    Dangerous Person pursuant to 
    18 U.S.C. § 4248
    (a).
    J.A. 64 (citations omitted).                  However, the district court went
    on    to    “reject[]       Matherly’s      claim     that   the    government      lacked
    jurisdiction to file a certificate seeking his commitment on the
    13
    final day of his criminal sentence.”                  J.A. 66.    In support of
    its   conclusion,       the    district      court   cited    United     States    v.
    Wetmore, 
    700 F.3d 570
    , 575 (1st Cir. 2012) and Hubbart v. Knapp,
    
    379 F.3d 773
    , 779-81 (9th Cir. 2004).
    In Wetmore, the First Circuit Court of Appeals considered
    inmate      Wetmore’s    similar       challenge     to    the   timing    of     the
    government’s     filing       of   a   §   4248   certificate.     Although       the
    certificate had been filed the day before Wetmore’s projected
    release date of November 18, 2006, Wetmore argued that it was
    untimely because his release date had been improperly calculated
    and should have been set a day earlier.                   The court rejected the
    challenge, as follows:
    [E]ven accepting Wetmore’s premise that he was due for
    release on November 17, 2006, the last day of a
    sentence is part of that sentence, 
    18 U.S.C. § 3624
    (a); Wetmore was still serving his sentence in BOP
    custody on November 17 when the government filed its
    request; and so the request was timely on its face. .
    . .    If it was unlawful for BOP to detain Wetmore
    until 11:59 p.m. on November 17, Wetmore has yet to
    explain why.
    Wetmore, 700 F.3d at 575 (emphasis added); see also Hubbart, 
    379 F.3d at 780-81
     (denying federal habeas relief to a petitioner
    who   had    been   civilly        committed      under   California’s    Sexually
    Violent Predator Act where the state court determined that the
    predator’s custody at the time the commitment proceedings were
    initiated, while perhaps unlawful, “was the result of a good
    faith error” and the Sexually Violent Predator Act had provided
    14
    the petitioner “with numerous procedural safeguards”) (internal
    quotation marks omitted).
    We have held that the word “custody” in § 4248 “refers not
    to physical custody or some qualified derivative but rather to
    legal custody” and, therefore, that “[t]he statutory language
    ‘in the custody of the Bureau of Prisons’ . . . requires the BOP
    to have ultimate legal authority over the person’s detention.”
    Joshua, 
    607 F.3d at 388
     (emphasis added).                    In Joshua, however,
    the inmate had been confined pursuant to a United States Army
    court-martial and was merely being housed within a BOP-operated
    facility.     See 
    id. at 381
    ; see also United States v. Hernandez-
    Arenado,     
    571 F.3d 662
    ,    667   (7th    Cir.     2009)    (rejecting      “an
    interpretation       that    would     allow     physical     custody       alone    to
    suffice”     and    instead        “read[ing]     custody     more       narrowly   as
    including all federal offenders, but not those housed in the BOP
    as a service to another entity which is responsible for that
    individual’s incarceration”).              Here, in contrast, there is no
    question that Matherly was remanded to the legal custody of the
    BOP pursuant to a federal conviction and, therefore, that the
    BOP “ha[d] ultimate legal authority over [Matherly’s] detention”
    while   he    was    being    physically        confined    in     its    facilities.
    Joshua, 
    607 F.3d at 388
    ; 
    id. at 386
     (noting that the individuals
    referenced in § 4248(a) includes “those remanded to the custody
    15
    of the BOP after a federal conviction”); see also 
    18 U.S.C. § 2621
    .
    Thus,     the    question       presented    by    Matherly        is    more   aptly
    described as whether the BOP relinquished its undisputed legal
    authority over Matherly – prior to the expiration of Matherly’s
    sentence        and     the        government’s      filing      of       the     §      4248
    certification.          And, contrary to Matherly’s claim, we have never
    held    that    physical        custody   is   irrelevant       to    the      question    of
    whether the BOP relinquished its otherwise legal authority over
    an inmate.       Cf. United States v. Savage, 
    737 F.3d 304
    , 308 (4th
    Cir.    2013)     (noting       that    custody     “is   not    limited         to    actual
    physical       custody,      but    denotes    a   type   of    legal     custody      which
    remains in the Attorney General . . . as he discharges his
    responsibility to transfer a prisoner from one institution to
    another for the well-being of the prisoner”) (internal quotation
    marks and alteration omitted); United States v. Earl, 
    729 F.3d 1064
    , 1068 (9th Cir. 2013) (interpreting “the term ‘released’ in
    the context of the [supervised release] statute to require not
    only release from imprisonment, but also release from the BOP’s
    legal custody at the expiration of the prisoner’s prescribed
    sentence”).
    Based     upon     the      government’s     submission       to     the   district
    court, we might well have agreed that there existed no genuine
    issue    of    fact     as    to    whether    Matherly    remained         in    both    the
    16
    physical       and    legal     custody      of       the    BOP       when   the    §     4248
    certificate was filed.             Matherly does not seem to dispute that
    the BOP had the authority to maintain both legal and physical
    custody of him pursuant to his criminal sentence until, at a
    minimum, the end of the day on November 22, 2006.                             See 
    18 U.S.C. §§ 3621
    (b), 3624(a); Wetmore, 700 F.3d at 575.                                 Nor does he
    claim that the BOP released him from its physical custody.
    Nevertheless,         this   case      is   not       so     simple.          Matherly,
    proceeding pro se at the time, submitted documents that he now
    contends       are    sufficient,      in    light      of       the     district     court’s
    factual finding, to establish that the BOP actually released him
    from its legal custody at 9:20 a.m., on November 22, 2006.                                   In
    particular,       Matherly      references        a    document          entitled     “Inmate
    History.”       J.A. 44.       On its face, the document includes a list
    of “admit[s]” and “release[s]” from BOP facilities, including a
    “good conduct time release” from “BUF” to “BUT,” with a “start
    date/time”       of    9:20    a.m.,    on    November           22,     2006,    and     “stop
    date/time” of 9:30 a.m., on November 22, 2006.                           J.A. 44.        But if
    that entry is significant, its significance is unexplained to
    us.      Did   the    BOP     voluntarily     relinquish           its    “ultimate       legal
    authority over [Matherly’s] detention,” Joshua, 
    607 F.3d at 388
    ,
    at that date and time as Matherly contends?                               Or did the BOP
    merely    apply       the   good   time      credits        that       Matherly     had    been
    projected to earn and release him from one facility to another
    17
    in anticipation of the change in his status from a criminal
    commitment to a civil commitment?               See, e.g., 
    18 U.S.C. §§ 3621
    ,
    3624.     We simply cannot tell.
    Here, the BOP records submitted by Matherly, even if they
    had been authenticated, are insufficient to demonstrate that the
    BOP relinquished its legal authority over Matherly prior to the
    government’s filing of the § 4248 certificate on November 22,
    2006,     as    Matherly      contends.         But     they     are       also   largely
    unexplained.          And,   standing     alone,      they     are    insufficient     to
    eliminate the possibility that genuine issues of material fact
    exist regarding the BOP’s relinquishment of its legal custody
    over Matherly.         All in all, we believe the better course is to
    allow the parties an opportunity to better develop the record,
    and     the    district      court   an   opportunity          to    make     additional
    findings       and   conclusions     in   light    of    such    developments.        We
    express no opinion as to whether summary judgment on Matherly’s
    custody claim would be appropriate based upon a more developed
    record.        Nor do we express any opinion as to the government’s
    argument that, even if untimely, the filing of the certificate
    could be excused as de minimis under the circumstances.
    IV.
    For the foregoing reasons, we affirm the district court’s
    determination        that    the   Adam   Walsh    Act    was       not    impermissibly
    applied       retroactively     to   Matherly.          However,      we    reverse   the
    18
    district court’s grant of summary judgment to the government on
    Matherly’s claim that he was not “in the custody” of the BOP
    when   the   §   4248   proceedings   were    initiated,   and   remand   for
    further proceedings on this issue.
    AFFIRMED IN PART;
    REVERSED AND REMANDED IN PART
    19