Indeterminate Sentence Law
Section 1. Hereafter, in imposing a prison sentence for an offense punished by acts of the Philippine Legislature, otherwise than by the Revised Penal Code, the court shall order the accused to be imprisoned for a minimum term, which shall not be less than the minimum term of imprisonment provided by law for the offense, and for a maximum term which shall not exceed the maximum fixed by law; and where the offense is punished by the Revised Penal Code, or amendments thereto, the court shall sentence the accused to such maximum as may, in view of attending circumstances, be properly imposed under the present rules of the said Code, and to a minimum which shall not be less than the minimum imprisonment period of the penalty next lower to that prescribed by said Code for the offense. Except as provided in section two hereof, any person who shall have been so convicted and sentenced and shall have served the minimum sentence imposed hereunder, may be released on parole in accordance with the provisions of this Act.