Chapter 8—Offences against humanity and related offences
Division 268—Genocide, crimes against humanity, war crimes and crimes against the administration of the justice of the International Criminal Court
Subdivision E—Other serious war crimes that are committed in the course of an international armed conflict
268.50 War crime—denying quarter
A person (the perpetrator) commits an offence if:
(a) the perpetrator declares or orders that there are to be no survivors; and
(b) the declaration or order is given with the intention of threatening an adversary or conducting hostilities on the basis that there are to be no survivors; and
(c) the perpetrator is in a position of effective command or control over the subordinate forces to which the declaration or order is directed; and
(d) the perpetrator's conduct takes place in the context of, and is associated with, an international armed conflict.
Penalty: Imprisonment for life.
Denial of quarter - IAC
National penalties - life imprisonment
EDIT.