Appellant filed a petition for a writ of habeas corpus, alleging that the system for determining his parole date violates state law and several of his constitutional rights. The district court denied the petition. We affirm.
I
FACTS
In 1972, a California court convicted appellant Chatman of first degree murder, armed robbery, and kidnapping for the purpose of robbery. The Corrected Abstract of Judgment stated that Chatman “was not charged with [or] proved or admitted being armed with a deadly weapon at the time of his commission of the offense____” The record indicates, however, that appellant committed the murder with a firearm. See, e.g., People v. Chatman, 5 Crim. No. 1379, slip op. at 3-4 (Cal.App. Sept. 10, 1974) (unpublished opinion affirming appellant’s convictions and recounting his confession to the shooting).
Under the indeterminate sentencing law (“ISL”) then in effect, the court sentenced Chatman to life imprisonment without possibility of parole. Effective in 1977, the state legislature adopted a determinate sentencing law (“DSL”) that entitled Chat-man to parole consideration. Cal. Penal Code § 1170.2 (West Supp.1984).
In 1978, the California Community Release Board (subsequently renamed the Board of Prison Terms, hereafter the “Board”) set a parole date for appellant of May 12, 1988. In computing the parole date, the Board invoked Cal.Admin.Code title 15, § 2285 to increase the base term by two years because “the prisoner personally used a firearm in the commission” of the crime.
In December 1982, the California Supreme Court ruled that the ex post facto clauses of the state and federal constitutions required prisoners convicted under the ISL to be considered for parole under both the ISL and DSL standards, and given the earlier of the two release dates.
In re Stanworth,
In May 1983, appellant filed a petition for a writ of habeas corpus in United States District Court for the Eastern District of California. Appellant initially challenged the two year firearm enhancement on various grounds, and subsequently questioned the calculation of his “gain time for good conduct” credits.
In June 1983, the Board held a
Stan-worth
hearing to recompute appellant’s parole date. The records of that hearing indicate that a parole date of February 11, 1988 was established. Subsequent records, however, show two previously calculated parole dates — July 12, 1987 and February 11, 1988. Although the reason for this discrepancy is not entirely clear from the record, it appears that the February 1988 date was calculated under the ISL, and the July 1987 date was calculated under the DSL. Pursuant to
Stanworth,
the earlier date should control.
Stanworth,
In January 1984, the district court denied the petition for writ of habeas corpus.
In March 1984, the Board held another hearing and further advanced appellant’s parole date for positive post-conviction behavior. His current parole dates are July 12,1986 and January 11,1988, respectively. Again, the earlier date should control.
In June 1984, this court granted appellant’s request for a certificate of probable cause to consider the issue of parole eligibility considerations under current and former California law in light of ex post facto principles.
II
STANDARD OF REVIEW
We apply de novo review to a district court’s decision on a petition for a writ
*1534
of habeas corpus.
See Roth v. United States Parole Commission,
III
RIGHTS TO COUNSEL, JURY TRIAL AND DUE PROCESS
Appellant asserts that the two year firearm enhancement constituted punishment “for a crime for which he has neither been charged, tried, convicted nor sentenced.” He states without elaboration that this violated his federal constitutional rights to counsel, trial by jury and due process, and his state constitutional rights to counsel and a fair trial. However, appellant cites only two cases in support of this argument, neither of which is on point.
See Duncan v. Louisiana,
We reject this argument.
IV
VIOLATION OF CALIFORNIA LAW
Appellant contends that even if he had been convicted of using a firearm, California law prohibits using such a finding to enhance a sentence of life imprisonment. This argument is partly correct.
In
People v. Walker,
First, the two cases only prohibit
sentence
enhancement by the court, not the use of firearm findings by the Board to calculate parole dates. The
Walker
court, for instance, noted that “[t]he Legislature may have attempted to increase the time to be served before eligibility for parole (§ 3046) in the case of a defendant subject to a life term who also used a firearm, but the [ISL] statute is not amenable to any such construction.”
Second, the California Supreme Court has only prohibited the enhancement of life sentences under the
ISL.
The Fifth District of the California Court of Appeals has continued, apparently without analysis, to apply this rule to
sentence
enhancements under the DSL.
See People v. Prysock,
*1535 We hold that under California law, Walker and its progeny do not prohibit consideration of firearm use in setting parole dates subsequent to the passage of the DSL.
Y
EX POST FACTO — FIREARM ENHANCEMENT
Appellant contends that the firearm enhancement violates ex post facto principles in general and the ex post facto rules set forth in In re Stanworth, supra, in particular.
The
Stanworth
court held that the Board must calculate the parole dates of ISL prisoners under both ISL and DSL regulations and give the prisoner the earlier release date.
The general principles relating to ex post facto questions were recently set forth in
Weaver v. Graham,
two critical elements must be present for a criminal or penal law to be ex post facto: it must be retrospective, that is, it must apply to events occurring before its enactment, and it must disadvantage the offender affected by it.
Whether the retrospective state statute ameliorates or worsens conditions imposed by its predecessor is a federal question.
Weaver,
In the case at bar, there is no question that a firearm enhancement that could not have been considered before the passage of the DSL is retrospective. However, considering the statutes in toto, the
*1536
DSL is not more onerous than the ISL. Under the ISL, prisoners who were sentenced to life imprisonment without possibility of parole had no hope of ever leaving prison. Under the DSL, such prisoners may be granted parole. In fact, appellant is entitled to the
least
onerous of the three possible sentences provided by the ISL and DSL: life without possibility of parole, parole in 1988, and parole in 1986. The fact that one isolated factor that is less favorable to appellant may be considered under the generally more favorable statute is irrelevant, at least where the more favorable provisions of the new law fully compensate for it.
See Weaver,
We hold that since appellant is substantially benefitted by the new statute when considered as a whole, the statutory changes do not violate the ex post facto clause.
VI
EX POST FACTO — “GAIN TIME” CREDITS
Appellant contends that the DSL provides less favorable “gain time for good conduct” credit provisions for some categories of prisoners than the ISL, in violation of the ex post facto clause. 2
The ISL “gain time” provisions did not apply to appellant at all, since a sentence of “life without possibility of parole” by definition excludes the possibility of parole. The proper comparison in appellant’s case is therefore between no possibility of parole under the ISL and the earning of gain time credits toward a possible parole under the DSL. The gain time credits as computed by the Board work to appellant’s substantial advantage, and therefore do not violate the ex post facto clause under the Weaver test.
VII
CONCLUSION
We affirm the trial court’s denial of appellant’s application for a writ of habeas corpus.
Notes
. Appellant attempts to discredit or distinguish
Neal
on two grounds. First, he contends that
*1535
Neal
is incorrect because it fails to deal with the ex post facto problem. As explained later in this opinion, there is no ex post facto problem here. Second, appellant points to a footnote in which the
Neal
court stated that the defendant did not challenge the "proof of the fact of the firearm use.”
Neal,
. Appellee contends that the petition should be dismissed because appellant never challenged the calculation of gain time below. However, the record shows that appellant raised this issue both in his application for administrative appeal and in his pleadings before the district court.
