Related Rule
Australia
Practice Relating to Rule 160. Statutes of Limitation
Australia’s Commanders’ Guide (1994) states:
Any nation may prosecute any person who is suspected of committing a major war crime and no statute of limitation applies for such prosecutions. Trial of a suspected war criminal may take place any time that the individual is located or evidence of a war crimes commission is unearthed. 
Australia, Law of Armed Conflict, Commanders’ Guide, Australian Defence Force Publication, Operations Series, ADFP 37 Supplement 1 – Interim Edition, 7 March 1994, § 1307.