Crimes Against Humanity and War Crimes Act 2000
8. A person who is alleged to have committed an offence under section 6 or 7 may
be prosecuted for that offence if
(a) at the time the offence is alleged to have been committed,
(iv) the victim of the alleged offence was a citizen of a state that was allied with Canada in an armed conflict; or
Unique provision - jurisdiction
EDIT.