Non-retroactivity

Ukraine

Constitution of Ukraine 1996 (2016)

Title II

HUMAN AND CITIZEN RIGHTS, FREEDOMS, AND DUTIES

Article 58. Laws and other regulatory legal acts shall have no retroactive force, unless they mitigate or nullify the responsibility of a person.
No one shall bear responsibility for acts that, at the time they were committed, were not deemed by law to be an offence.

Criminal Code of Ukraine 2001 (2010)

GENERAL PART

Chapter II. LAW ON CRIMINAL LIABILITY

Article 5. Retroactive effect of the law on criminal liability in time

1. The law on criminal liability, which repeals the criminality of an act or lenifies criminal liability, shall be retroactive in time, that is it shall apply to persons who had committed relevant acts before that law entered into force, including the persons serving their sentence or those who have completed their sentence but have a conviction.

2. The law on criminal liability that criminalizes an act or increases criminal liability shall not be retroactive in time.

3. The law on criminal liability, which partially lenifies and partially increases criminal liability, shall be retroactive in time only in the part which lenifies the liability.

4. In the event that the law on criminal liability has been amended several times since a person committed an act by stipulated by this Code, the law that abolishes criminality of an act or lenifies criminal liability shall be deemed as retroactive. (Article 5 in version of Law No 270-VI (270-17) of 15.04.2008)

Rome Statute

Article 11 Jurisdiction ratione temporis

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.

Article 24 Non-retroactivity ratione personae

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.