Lоuis W. Brock, currently confined pursuant to the Washington Sexually Violent Predators Act at the Special Commitment Center of the Washington State Penitentiary, appeals the district court’s dismissal of his pro se 28 U.S.C. § 2254 habeas corpus petition for lаck of subject matter jurisdiction. In his petition, Brock challenges the constitutionality of his 1974 assault conviction. Although the sentence imposed for this conviction expired in 1984, Brock alleges that the state relied on the conviction, at lеast in part, in the proceedings resulting in his 1991 confinement as a “sexually violent predator.”
The district court ruled that Brock was not “in custody” under § 2254 for the purpose of challenging his 1974 conviction because Brock had already finished serving the sеntence imposed pursuant to that conviction. We disagree. Following
Feldman v. Perrill,
I.
In 1974, Brock pled guilty to the offense of second degree assault, a violation of Section 9A.36.021 of the Revised Code of Washington. Brock was sentenced to a ten-year prisоn term for this offense. He was released from custody and placed on parole in 1981, and his sentence expired in 1984.
On March 22, 1991, Washington filed a petition for commitment alleging that Brock was a “sexually violent predator” within the meaning of the Washington Sexually Violent Predators Act, Wash.Rev.Code §§ 71.09.010-71.09.902 (“the Act”). 3 On November 22, *889 1991, a jury tried Brock in absentia and granted the state’s petition. 4 The state trial court subsequently entered an Order of Commitment authorizing Brock’s indefinite confinement.
On April 30, 1991, after Washington had filed its petition under the Act but before the jury trial, Brock filed a pro se personal restraint petition with the Washington State Court of Appeals challenging his 1974 second degree assault conviction. Brock claimed that his 1974 conviction was based on an involuntary and uninformed plea agreement which the State had breached by prosecuting and indefinitely incarcerating him as a sexually violent predator. The Washington State Court of Appeals dismissed this petition without leave to amend, ruling that Brock had not adequately identified the еrror underlying his conviction. The Washington Supreme Court then denied Brock’s motion for discretionary review of this dismissal, although it noted that Brock would be able to bring another petition if a then-pending constitutional challenge to the Act was sucсessful. 5
Brock subsequently filed a pro se petition for a writ of habeas corpus under 28 U.S.C. § 2254 in federal district court, again challenging the constitutionality of his 1974 assault conviction. Without filing an answer, Respondent Weston moved to dismiss Brock’s petition, аrguing that Brock was not “in custody” under § 2254 for the purpose of challenging the 1974 conviction because he had completed the sentence imposed pursuant to that conviction. The district court agreed, and dismissed Brock’s petition fоr lack of subject matter jurisdiction. Brock timely appeals that ruling.
II.
A.
Subject matter jurisdiction under the federal habeas corpus statute, 28 U.S.C. § 2254(a), is limited to those persons “in custody pursuant to the judgment of a State.” See also id. § 2241(c)(3). The respondent asserts thаt, because Brock’s 1974 sentence for assault has already expired, Brock is no longer in custody pursuant to his assault conviction and may not challenge its validity via a § 2254 petition.
Brock contends that he is still in custody under his 1974 assault conviction because his current confinement “constitutes an extension or continuation” of the sentence imposed pursuant to that conviction. Yet, while the Act’s application is predicated upon the existence of one оr more past criminal convictions, confinement under the Act is not simply an extension of an inmate’s previous sentence: it has additional prerequisites and involves a separate jury trial. Even though Brock’s current confinement may be based upon his 1974 conviction, among others, it was not imposed directly pursuant to that conviction.
As the Supreme Court has held, “once the sentence imposed for a conviction has completely expired, the collaterаl consequences of that conviction are not themselves sufficient to render an individual ‘in custody’ for the purposes of a habeas attack upon it.”
Maleng v. Cook,
B.
Nonetheless, as we recently emphasized in ruling on a similar habeas challenge to an expired conviction, “[t]hat is not the end of the matter.”
Feldman,
The Court recently reaffirmed
Maleng
in
Custis v. United States,
— U.S. -, -,
The fact that this case involves confinement pursuant to the Act rather than confinement pursuant to an enhanced sentence does not affect our conclusion. Like criminal incarceration, involuntary commitment satisfies § 2254’s custody requirement.
See Tyars v. Finner,
C.
The Supreme Court in
Maleng
left open the question of “the extent to which the
*891
[expired] conviction itself may be subject to challenge in the defense attack upon the [later] sentences which it was used to enhance.”
Maleng,
The district court is therefore instructed, if it reaches the merits, 7 to determine whethеr the expired conviction served as a predicate for Brock’s current commitment. If so, it must resolve his challenge to that conviction.
III.
We reverse the district court’s dismissal of Brock’s habeas petition and remand for further proceedings.
REVERSED and REMANDED.
Notes
. We note that the Attorney General of the State of Washington makes no mention of Feldman in her brief on appeal, although it is the controlling case and was discussed extensively in appellant’s opening brief. Counsel should be aware that the state, like all other parties, is expected to discuss the relevant cases in its briefs, including those that are adverse to its position.
. We express no opinion regarding the other issues briefed by the parties. Since the respondent has not yet filed his answer to Brock's habeas petition, and the record of Brock's commitment proceedings has not been submitted to the district court, the parties' arguments are premature. On remand, of course, the parties mаy reassert these arguments.
. As defined in the Act, a "sexually violent predator” is someone:
who has been convicted of or charged with a crime of sexual violence and who suffers from a mental abnormality or personality disorder which makes the person likely to engage in predatory acts of sexual violence.
Wash.Rev.Code § 71.09.020(1). In order for the Act to apply, the person must have committed at least one “sexually violent offense,” defined as:
(a) An act dеfined in Title 9A RCW as rape in the first degree, rape in the second degree by forcible compulsion, rape of a child in the first or second degree, statutory rape in the first or second degree, indecent liberties by forcible comрulsion, indecent liberties against a child under age fourteen, incest against a child under age fourteen, or child molestation in the first or second degree; (b) a felony offense in effect at any time prior to July 1, 1990, that is comparable to a sexually violent offense as defined in (a) of this subsection, or any federal or out-of-state conviction for a felony offense that under the laws of this state would be a sexually violent offense as defined in this sub *889 section; (c) an act оf murder in the first or second degree, burglary in the first degree, residential burglary, or unlawful imprisonment, which act, either at the time of sentencing for the offense or subsequently during civil commitment proceedings ... has been determined beyond a reasonable doubt to have been sexually motivated, as that term is defined in RCW 9.94A.030; or (d) an act ... that is an attempt, criminal solicitation, or criminal conspiracy to commit one of the felonies designated in (a), (b), or (c) of this subsection.
Wash.Rev.Code § 71.09.020(4). If the State proves beyond a reasonable doubt that the detainee is a sexually violent predator, he will be committed to a facility “for control, care, and treatment" until he is "safe to be at large." Wash.Rev.Code § 71.09.060(1).
. Neither party explains why Brock was tried in absentia. It is clear that he was in custody at the time of his trial.
. That case,
In re Young,
. Thus, as the dissent emphasizes, the Court's holding does not disturb the "uniform appellate case law” holding that, on habeas, federal courts may review the constitutionality of prior convictions relied upon for sеntencing enhancement.
Id.
at - n. 7,
. Before addressing Brock’s substantive claims, the district court should, of course, decide whether Brock has adequately exhausted his state court remedies.
See
28 U.S.C. § 2254(b);
Rose v. Lundy,
