Petitioner appeals from the district court’s dismissal of his Petition for Writ of Habeas Corpus.
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I.
Petitioner contends that he is entitled to mandatory parole and that, because ambiguities have been created by the Colorado Supreme Court’s interpretation of Colorado sex offender parole laws, the federal courts must decide the issue. It is a well-established principle that, absent certain extreme circumstances not present here, a state court’s interpretation of a state statute is controlling in federal court.
Mullaney v. Wilbur,
H.
Petitioner also argues that denying him mandatory parole constitutes an ex post facto law in violation of the United States and Colorado Constitutions. Petitioner’s reliance on the Ex Post Facto Clause is misplaced. “The
Ex Post Facto Clause
is a limitation upon the powers of the Legislature and does not of its own force apply to the Judicial Branch of government.”
Marks v. United States,
Colorado Rev.Stat. § 17-2-201(5)(a) provides, in pertinent part:
As to ... any person sentenced for conviction of a sex offense, as defined in section 16-13-202(5), C.R.S., ... and as to any person sentenced as a habitual criminal pursuant to section 16-13-101, C.R.S., the board has the sole power to grant or refuse to grant parole .and to fix the condition thereof and has full discretion to set the duration of the term of parole granted,....
Prior to January 1989, this statute was interpreted by the Colorado Parole Board to dictate that only persons sentenced under the Sex Offenders Act (Colo.Rev.Stat. §§ 16-13-201 through 216) were subject to discretionary parole, and that persons not sentenced under that Act were entitled to mandatory parole.
See Thiret,
Petitioner now argues before this court that application
to him of Thiret’s
judicial interpretation of the parole statutes violates his due process rights because the interpretation was unforeseeable. We disagree. The plain language of section 17-2-201(5)(a) dictates that “any person sentenced for conviction of a sex offense” is subject to discretionary parole. The meaning of that language is made neither ambiguous nor unforeseeable by the reference to section 16-13-202(5) for purposes of defining what constitutes a sex offense. The plain meaning of the section is further evidenced by language in the same sentence which states that “any person sentenced as a habitual criminal pursuant to section 16-13-101” is subject to discretionary parole. If the statute meant that only persons sentenced pursuant to the Sex Offenders Act were subject to discretionary parole, as Petitioner contends, it would except from mandatory parole persons sentenced pursuant to that Act, just as it excepts persons sentenced as habitual criminals under the Habitual Criminal Act. Instead, the plain language of the statute refers to a section of the Sex Offenders Act only for purposes of defining what constitutes a sex offense. We agree with the Colorado Supreme Court that interpretation of the parole statute in this way is dictated by the plain language of section 17-2-201(5)(a) and was, therefore, foreseeable.
See Aue,
III.
Petitioner argues that his due process rights have been violated because he is entitled to application of good time credits, resulting in mandatory parole. The district court pointed out that “if a state creates a right to good time credits that
automatically
entitle an inmate to release before the full term of the sentence is served, denying early release constitutes a deprivation of liberty.” R. Vol. I Doc. 19 at 5 (citing
Wolff v. McDonnell,
Petitioner also claims that he was promised mandatory parole and that the doctrine of promissory estoppel operates to bar denial of mandatory parole in this case. We have held herein that the plain language of the statute excepts sex offenders from mandatory parole, so it is not the statutory language which makes such promise. Further, the sentencing court made no such promise, and, even if promise of mandatory parole was made by Petitioner’s attorney, such action would not bind the government. Finally, the fact that the Parole Board had previously misapplied the statute does not constitute such promise. “[A]n agency’s misinterpretation of a statute is not binding on a court’s construction of that statute.”
Caballery v. United States Parole Comm’n,
IV.
. Petitioner asserts that applying the
Thiret
decision to deny him mandatory parole violates his right to equal protection. Petitioner is not a member of a suspect class,
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nor is a fundamental right involved. Therefore, the statute withstands constitutional scrutiny if it bears a rational relationship to a legitimate state interest.
McGinnis v. Royster,
V.
Finally, Petitioner argues that applying the
Thiret
interpretation of the sex offender parole statutes to him constitutes cruel and unusual punishment in violation of federal and state constitutional prohibitions. We agree with the district court that Petitioner’s sentence is within the statutory limits and that there has been no showing of illegality or abuse of discretion.
See United States v. MacClain,
The district court’s denial of Petitioner’s, application for a writ of habeas corpus is AFFIRMED.
Notes
. After examining the briefs and appellate record, this panel has determined unanimously that oral argument would not materially assist the determination of this appeal. See Fed. R.App.P. 34(a); 10th Cir.R. 34.1.9. The case is therefore ordered submitted without oral argument.
. In 1979, the Colorado Legislature adopted a "mandatory" parole scheme which provided for "mandatory” parole by requiring application of good time credits and earned time credits to the parole eligibility date. Under that scheme, a person was entitled to mandatory parole unless some statutory exception existed. The parole scheme has since been altered to allow more discretion in parole determinations.
See generally Thiret v. Kautzky,
. Petitioner argues violation of equal protection because he is being treated differently than were sex offenders in the past. The Equal Protection Clause does not require continued incorrect interpretation and application of a statute.
Aue,
