The Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG) came into effect in January 1951. Article 5, 6 and 7 of the CPPCG cover obligations that sovereign states that are parties to the convention must undertake to enact:
Art. 5: The Contracting Parties undertake to enact, in accordance with their respective Constitutions, the necessary legislation to give effect to the provisions of the present Convention, and, in particular, to provide effective penalties for persons guilty of genocide or any of the other acts enumerated in article III.
Art. 6: Persons charged with genocide or any of the other acts enumerated in article III shall be tried by a competent tribunal of the State in the territory of which the act was committed, or by such international penal tribunal as may have jurisdiction with respect to those Contracting Parties which shall have accepted its jurisdiction.
Art. 7 Genocide and the other acts enumerated in article III shall not be considered as political crimes for the purpose of extradition.
The Contracting Parties pledge themselves in such cases to grant extradition in accordance with their laws and treaties in force.
Since 1951 the following states have enacted provisions within their municipal law to prosecute or extradite perpetrators of genocide: