SECTION ONE
CHAPTER 2. HUMAN AND CIVIL RIGHTS AND FREEDOMS
Article 54
1. A law, which introduces or increases liability, shall not have retroactive force.
2. Nobody may bear liability for an action, which was not regarded as a crime when it was committed. If, after an offense has been committed, the extent of liability for it is lifted or mitigated, the new law shall be applied.
General Part
Section I. Criminal Law
Chapter 2. The Operation of Criminal Law in Time and Space
Article 9. The Operation of Criminal Law in Time
1. The criminality and punishability of a deed shall be determined by the criminal law that was operative during the commission of this deed.
2. The time a socially dangerous action (inaction) is committed shall be deemed to be the time of committing a crime, regardless of the time of the onset of consequences .
2. If a State becomes a Party to this Statute after its entry into force, the Court may exercise its jurisdiction only with respect to crimes committed after the entry into force of this Statute for that State, unless that State has made a declaration under article 12, paragraph 3.
1. No person shall be criminally responsible under this Statute for conduct prior to the entry into force of the Statute.
2. In the event of a change in the law applicable to a given case prior to a final judgement, the law more favourable to the person being investigated, prosecuted or convicted shall apply.