OFFENCES WITHIN CANADA
4. Definitions
(3) The definitions in this subsection apply in this section.
"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.
War crimes
Nullum crimen sine lege
Omission
EDIT.