PROCEDURE AND DEFENCES
Limitation -- belief of accused
(3) An accused cannot base their defence under subsection (1) on a belief that an
order was lawful if the belief was based on information about a civilian population or
an identifiable group of persons that encouraged, was likely to encourage or attempted
to justify the commission of inhumane acts or omissions against the population or
group.
Mistake of law - national proceedings
EDIT.