มาตรา 3Section 3

Section 3 If the law in force at the time of the commission of the offence differs from the law in force after the commission, the law in the part favourable to the offender shall be applied, in whatever respect, except where the case has become final. But where the case has become final, the following shall apply:

(1) If the offender has not yet undergone punishment, or is undergoing it, and the punishment fixed by the judgment is heavier than that fixed by the later law, then, on the matter appearing to the court, or on application by the offender, his legal representative, his guardian, or the public prosecutor, the court shall fix the punishment anew under the later law. In fixing the new punishment, if it appears that the offender has already undergone some punishment, the court, taking the later law into account and where it sees fit, may fix a punishment below the minimum (if any) provided by the later law, or, if it considers the punishment already undergone sufficient, may release the offender.

(2) If the court has sentenced the offender to death, and under the later law the punishment to be imposed is below death, the execution shall be stayed, and the death sentence under the judgment shall be deemed converted to the highest punishment that may be imposed under the later law.