With regard to the application of penal provisions to acts committed before this Act comes into effect (or, for the provisions set forth in the items of Article 1 of the Supplementary Provisions, before those provisions come into effect; the same applies hereinafter in this Article) and to acts committed after this Act comes into effect in the cases where the provisions then in force continue to govern pursuant to the provisions of these Supplementary Provisions, the provisions then in force continue to govern.