-16 (1) No person is criminally responsible for an act committed or an omission made while suffering from a mental disorder that rendered the person incapable of appreciating the nature and quality of the act or omission or of knowing that it was wrong
-defined as state of impaired consciousness in which an individual though capable of action, has no voluntary control over that action
-Unlike mental disorder, you can be acquitted of a crime if you can prove automatism
-Presumption
-(2) Every person is presumed not to suffer from a mental disorder so as to be exempt from criminal responsibility by virtue of subsection (1), until the contrary is proved on the balance of probabilities
-Burden of proof
-use of the defense requires the accused person admits to the act but did not have the requisite mental capacity to form criminal intent (mens rea)
-when defense is raised, expert testimony is provided by psychiatrists or clinical psychologist
-references to DSM IV