PART IV
GENERAL RULES AS TO CRIMINAL RESPONSIBILITY
Intoxication
13. (2) Intoxication shall be a defence to any criminal charge if by reason thereof the person charged at the time of the act or omission complained of did not know that such act or omission was wrong or did not know what he was doing and
(b) the person charged was by reason of intoxication insane, temporarily or otherwise, at the time of such act or omission.
Insanity - national proceedings
EDIT.