'Non-retroactivity' in document 'Poland - Constitution'

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RELEVANT SECTIONS OF THE IMPLEMENTING LEGISLATION

Chapter II
THE FREEDOMS, RIGHTS AND OBLIGATIONS OF PERSONS AND CITIZENS

PERSONAL FREEDOMS AND RIGHTS

Article 42

1. Only a person who has committed an act prohibited by a statute in force at the moment of commission thereof, and which is subject to a penalty, shall be held criminally responsible. This principle shall not prevent punishment of any act which, at the moment of its commission, constituted an offence within the meaning of international law.

RELEVANT ROME STATUTE PROVISIONS

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.