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
268.38 War crime—excessive incidental death, injury or damage
(2) A person (the perpetrator) commits an offence if:
(a) the perpetrator launches an attack; and
(b) the perpetrator knows that the attack will cause:
(i) damage to civilian objects; or
(ii) widespread, long-term and severe damage to the natural environment; and
(c) the perpetrator knows that the damage will be of such an extent as to be excessive in relation to the concrete and direct military advantage anticipated; and
(d) the perpetrator's conduct takes place in the context of, and is associated with, an international armed conflict.
Penalty for a contravention of this subsection: Imprisonment for 20 years.
National penalties - maximum penalty
EDIT.