Chapter II
Fundamental Rights, Freedoms and Duties

§ 23.

No one may be sentenced to a penalty that is more severe than the one that was applicable at the time the offence was committed. If, subsequent to the commission of the offence, the law makes provision for a lighter penalty, the lighter penalty applies.

Part 1 GENERAL PART
Chapter 1 GENERAL PROVISIONS

§ 2. Basis for punishment
(1) No one shall be convicted or punished for an act which was not an offence pursuant to the law applicable at the time of the commission of the act.
(2) A person shall be punished for an act if the act comprises the necessary elements of an offence, is unlawful and the person is guilty of commission of the offence.