*253 OPINION
By the Court,
Pеtitioner seeks a Writ of Mandate directing the Chief of the Department of Parole and Probation to allow him to file, and requiring the State Board of Parole Commissioners to consider, his аpplication for parole which they otherwise have refused to do relying upon ch. 98, [1969] Stats, of Nev. 125. We direct that the writ shall issue.
Petitioner was charged with kidnapping which occurred оn May 25, 1967. On August 4, 1967, he entered a plea of guilty to the charge in the Second Judicial District Court and was sentenced to an indefinite term of imprisonment of 10-15 years in the Nevada State Prison.
On July 1, 1967, the entirе scheme of handling criminal penalties in the State of Nevada was changed by the legislature from indefinite to definite sentencing. A concomitant change was made in the statute deаling with eligibility for parole to make it compatible with the new penalty scheme.
Prior to July 1, 1967, NRS 213.120, relating to parole eligibility under the indefinite penalty scheme, read in pertinent part: “No рrisoner may be paroled until he has served the minimum term of imprisonment provided by law for the offense of which he was convicted, except that any prisoner whose minimum term of imprisonment is more than 1 year, other than a prisoner who has been sentenced for rape to a term of not less than 5 years which may extend to life, may be paroled at any time after thе expiration of one-third of such minimum term, less good time credits, if he has served not less than 1 calendar year, less good time credits.” See ch. 211, § 237, [1967] Stats, of Nev. 527.
As amended effective July 1, 1967, to cоnform to the definite penalty plan, NRS 213.120 reads: “Except as otherwise *254 limited by statute for certain specified offenses, a prisoner may be paroled when he has served:
“1. One-fourth оf the definite period of time for which he has been sentenced pursuant to NRS 176.033, less good time credits; or
“2. One year, whichever is longer.”
The change over from indefinite to definite sentencing on July 1, 1967, produced a certain amount of confusion in the trial courts. However, in Tellis v. State,
Still further confusion arose as to what law would be applied in determining eligibility for parole. It is difficult to understand why the confusion arose, because the parole eligibility statute relаting to the definite sentencing scheme clearly was in no manner compatible with an indefinite sentence. The logical action would have been to apply the eligibility for parоle statute as it existed under the indefinite sentencing scheme, and no difficulty would have resulted.
For a reason not entirely clear to us, however, the 1969 legislature, in attempting to deal with a problem which did not exist, enacted ch. 98, [1969] Stats, of Nev. 125, which provides: “A prisoner who is sentenced on or after July 1, 1967, to an indeterminate period of imprisonment in the state prison, upon conviction of a crime committed prior to July 1, 1967, and whose sentence does not preclude parole, may be paroled when he has served:
“(a) The minimum period for which he was sеntenced, less good time credits; or
“(b) One year, whichever is longer.”
Respondents refused to allow petitioner to apply for parole in accordance with the eligibility for parole statute in effeсt prior to July 1, 1967, but instead undertook to apply ch. 98 to his case. It is that action of which he complains in this application and claims, whether he is granted parole or not, he is legаlly entitled to make application under the statute in effect *255 prior to July 1, 1967. The difference in time within which petitioner is entitled to apply for parole under the two different statutes is substantial. Under NRS 213.120, prior to the amendment effective July 1, 1967, he could apply in approximately 30 months. Under ch. 98, he is required to serve the minimum of 10 years, less good time credit.
Petitioner therefore contends ch. 98 is an ex post facto law, in that it increases his punishment and is in violation of the state and federal constitutions. Respondents, on the other hand, in defending ch. 98, contend that рarole itself it not a constitutional right but an act of legislative clemency or grace, and, regardless of the effect of ch. 98 on petitioner, none of his constitutional rights have bеen violated.
While it is regrettable that we must pass upon the constitutionality of the statute at all, there appears no other course of action for us in resolving these conflicting positions. We declare ch. 98, [1969] Stats, of Nev. 125 unconstitutional as ex post facto.
1. Ex post facto laws have been defined by the United States Supreme Court as those laws which inflict greаter punishment than that affixed when the offense was committed. Calder v. Bull,
It is clear, therefore, that a legislative act increasing the sentence to be given an offender for a crime committed before the law was passed would be ex post facto and constitutionally prohibited.
A morе difficult problem arises when a legislative act does not increase the sentence, but, in some other manner, alters the punishment to the detriment of the individual after the crime has been committed, or, as in this case, after sentence has been imposed. The case before us involves that issue, because petitioner asserts that his punishment was increased by the еnactment of ch. 98 and its application to him by respondents.
*256 When the increase in punishment results from a change in the law affecting parole after the prisoner committed a сrime and has been sentenced, there are two lines of authority dealing with the constitutional ex post facto issue thus raised.
2. One group of courts holds that because parole is а matter of legislative grace, statutes enacted after a sentence has been imposed which changes or modifies eligibility for parole in a manner detrimental to a prisоner are not ex post facto laws, and not unconstitutional. See Zink v. Lear,
There are, however, a growing list of well reasoned authorities holding the other way.
The Supreme Court of California, in In re Griffin,
3. This court has pointedly held in Pinana v. State,
Nevertheless, if the legislature undertakes to enact laws granting parole
1
when it need not constitutionally have done so, we think those rights granted as аcts of clemency or grace must be administered in accordance with concepts of due process and may not arbitrarily increase the punishment previously imposed in the unequal and illogical manner done here.
*257
See Griffin v. Illinois,
4. Respondents urge that Eisentrager v. State Board of Parole,
5. We subscribe to the rule announced in In re Griffin, supra, and hold that ch. 98, [1969] Stats, of Nev. 125, is unconstitutional in that it is an ex post facto law and in violation of Art. 1, § 15, of the Nevada Constitution and Art. 1, §§ 9 and 10, of the U.S. Constitution.
The application is granted and a Writ of Mandate shall issue commanding respondents to permit petitioner to file and directing respondents to consider his request for parole.
Notes
See generally NRS 213.107-213.210.
