Crimes Against Humanity and War Crimes Act 2000
6. (3) The definitions in this subsection apply in this section.
• “crime against humanity”
«crime contre l’humanité»
“crime against humanity” means murder, extermination, enslavement, deportation, imprisonment, torture, sexual violence, persecution or any other inhumane act or omission that is committed against any civilian population or any identifiable group and that, at the time and in the place of its commission, constitutes a crime against humanity according to customary international law or conventional international law or by virtue of its being criminal according to the general principles of law recognized by the community of nations, whether or not it constitutes a contravention of the law in force at the time and in the place of its commission.
•“genocide”
«génocide»
“genocide” means an act or omission committed with intent to destroy, in whole or in part, an identifiable group of persons, as such, that at the time and in the place of its commission, constitutes genocide according to customary international law or conventional international law or by virtue of its being criminal according to the general principles of law recognized by the community of nations, whether or not it constitutes a contravention of the law in force at the time and in the place of its commission.
• “war crime”
«crime de guerre»
“war crime” means an act or omission committed during an armed conflict that, at the time and in the place of its commission, constitutes a war crime according to customary international law or conventional international law applicable to armed conflicts, whether or not it constitutes a contravention of the law in force at the time and in the place of its commission.
(4) For greater certainty, crimes described in articles 6 and 7 and paragraph 2 of article 8 of the Rome Statute are, as of July 17, 1998, crimes according to customary international law, and may be crimes according to customary international law before that date. This does not limit or prejudice in any way the application of existing or developing rules of international law.
EDIT.