delivered the opinion of the Court.
William Morris Johnson appeals the denial of his motion for post-conviction review of sentence pursuant to 1971 Perm. Supp., C.R.S. 1963, 40-1-510(1)(f).
Appellant was charged with aggravated robbery under C.R.S. 1963, 40-5-1(2)(b). On January 31, 1967, he entered a plea of guilty to simple robbery and on March 27, 1967, he was sentenced to serve a term in the state penitentiary of not less than seven nor more than fourteen years. No appeal was taken from this judgment of conviction.
*287 On August 1, 1972, appellant filed his motion for post-conviction review of his sentence. The basis for relief was that section 40-4-301 of the Colorado Criminal Code, which became effective July 1, 1972, reclassified simple robbery as a class four felony and under section 40-1-105 reduced the penalty to not less than one nor more than ten years. The trial court denied his motion for post-conviction relief. We affirm.
This case is controlled by
People v. Herrera,
Appellant argues that
People v. Herrera, supra,
was decided erroneously. This argument was rejected in
People v. Rupert,
In his motion for post-conviction relief, appellant also asked for credit for time served in presentence confinement. Neither rule nor statute required that the court grant a defendant credit for time served prior to sentencing, and it is clear that there is no constitutional right to credit for presentence confinement.
People v. Nelson,
Appellant claims, however, that he is entitled to such credit under Colo. Sess. Laws 1972, ch. 44, 39-11-306(1) at 249, which requires the sentencing judge to take into consideration a defendant’s presentence confinement. In 1973, the legislature added a provision that “[T] his section shall apply to persons sentenced both before and after July 1, 1972.” Colo. Sess. Laws 1973, ch. 147, 39-11-306(4) at 506. To the extent that the statute and its amendment authorizes a court to alter or reduce, after a final conviction, a *288 defendant’s sentence to reflect credit for presentence confinement, when such was not constitutionally or statutorily required at the time sentence was imposed, it falls within the principles announced in People v. Herrera, and is an unconstitutional infringement on the executive power of commutation. As heretofore noted, the sentence here imposed was a valid sentence and one not subject to correction as might otherwise have been required had it not complied with the principles set forth in People v. Nelson, supra, and People v. Jones, supra.
The judgment is affirmed.
