Crimes Against Humanity and War Crimes Act 2000
6 (5) For greater certainty, the offence of crime against humanity was part of customary international law or was criminal according to the general principles of law recognized by the community of nations before the coming into force of either of the following:
(a) the Agreement for the prosecution and punishment of the major war criminals of the European Axis, signed at London on August 8, 1945; and
(b) the Proclamation by the Supreme Commander for the Allied Powers, dated January 19, 1946.
Crimes against humanity
Jurisdiction
Entry into force
Jurisdiction ratione temporis
Non-retroactivity
EDIT.