Ne bis in idem

Australia

Australia - Criminal Code Act 1995 (2023) Vol 1

72.6 Double jeopardy and foreign offences

If a person has been convicted or acquitted of an offence in respect of conduct under the law of a foreign country, the person cannot be convicted of an offence under this Subdivision in respect of that conduct.

100.6 Concurrent operation intended

(4) If:

(b) the person has been punished for the offence under the law of the State or Territory;

the person is not liable to be punished for the offence under this Part.

Australia - ICC (Consequential Amendments) Act 2002

Schedule 1—Amendment of the Criminal Code Act 1995

Chapter 8—Offences against humanity and related offences

Division 268—Genocide, crimes against humanity, war crimes and crimes against the administration of the justice of the International Criminal Court

Subdivision K—Miscellaneous


268.118 Double jeopardy

A person cannot be tried by a federal court or a court of a State or Territory for an offence under this Division if the person has already been convicted or acquitted by the International Criminal Court for an offence constituted by substantially the same conduct as constituted the offence under this Division.

Australia - International Criminal Court Act No. 41 2002 (2018) EN

Part 3—Requests by the ICC for arrest and surrender of persons

Division 4—Surrender of persons

35 Person being investigated or prosecuted in Australia for same conduct
(1)
(c) either:
(i) the conduct is being investigated or prosecuted in Australia; or
(ii) the conduct has been investigated in Australia, and a decision was made not to prosecute the person sought; and

Australia - Mutual Assistance in Criminal Matters Act No. 85 1987 (2018)

Part I—Preliminary
8 Refusal of assistance
(2) A request by a foreign country for assistance under this Act may be refused if, in the opinion of the Attorney General:
(c) the request relates to the investigation, prosecution or punishment of a person for an offence in a case where:
(i) the person has been acquitted or pardoned by a competent tribunal or authority in the foreign country, or in Australia or another country; or
(ii) the person has undergone the punishment provided by the law of the foreign country, or of Australia or another country;
in respect of that offence or of another offence constituted by the same act or omission as that offence; or

Rome Statute

Article 20 Ne bis in idem

1. Except as provided in this Statute, no person shall be tried before the Court with respect to conduct which formed the basis of crimes for which the person has been convicted or acquitted by the Court.

2. No person shall be tried by another court for a crime referred to in article 5 for which that person has already been convicted or acquitted by the Court.

3. No person who has been tried by another court for conduct also proscribed under article 6, 7, 8 or 8 bis shall be tried by the Court with respect to the same conduct unless the proceedings in the other court:

(a) Were for the purpose of shielding the person concerned from criminal responsibility for crimes within the jurisdiction of the Court; or

(b) Otherwise were not conducted independently or impartially in accordance with the norms of due process recognized by international law and were conducted in a manner which, in the circumstances, was inconsistent with an intent to bring the person concerned to justice.