(1) The criminality and punishability of an act shall be governed by a statute in effect at the time of the commission of that act.
(2) Where a statute is changed after the commission of a crime, and the relevant act thereby no longer constitutes a crime under the new statute or the punishment therefor under the new statute becomes less heavy than under the previous one; the new statute shall apply.
(3) Where a statute is changed after the sentence for a crime has become final and conclusive and the relevant act thereby no longer constitutes a crime, the execution of the punishment shall be remitted.[This Article Wholly Amended on Dec. 8, 2020]