PART II - GENERAL PRINCIPLES OF CRIMINAL LIABILITY
Superior orders
18. (1) A person who is placed in authority over another person commits an offence if he or she issues orders that are clearly or manifestly illegal.
(2) It shall not be a defence to a criminal charge that the offence specified in the charge was carried out by the accused person while acting under the clearly or manifestly illegal orders of a superior placed in authority over him or her .
Superior orders - national proceedings
EDIT.