Perka v The Queen: 1984

(Canada) The court analysed the defence of necessity. The concept of necessity is used as an excuse for conduct which would otherwise be criminal. The defence arose where, realistically, the individual had no choice, where the action was ‘remorselessly compelled by normal human instincts’, and, per Dickson J: ‘I agree with this formulation of the rationale for excuses in the criminal law. In my view this rationale extends beyond specific codified excuses and embraces the residual excuse known as the defence of necessity. At the heart of this defence is the perceived injustice of punishing violations of (Canada) The law in circumstances in which the person had no other viable or reasonable choice available; the act was wrong but it is excused because it was realistically unavoidable.’ The involuntariness of the actor’s conduct ‘is measured on the basis of society’s expectation of appropriate and normal resistance to pressure’ and ‘If the defence of necessity is to form a valid and consistent part of our criminal law it must, as has been universally recognised, be strictly controlled and scrupulously limited to situations that correspond to its underlying rationale.’
Wilson J said: ‘The ethical considerations of the ‘charitable and the good’ must be kept analytically distinct from duties imposed by law. Accordingly, where necessity is invoked as a justification for violation of the law, the justification must, in my view, be restricted to situations where the accused’s act constitutes the discharge of a duty recognised by law. The justification is not, however, established simply by showing a conflict of legal duties. The rule of proportionality is central to the evaluation of a justification premised on two conflicting duties since the defence rests on the rightfulness of the accused’s choice of one over the other.’

Judges:

Dickson J, Wilson J

Citations:

[1984] 2 SCR 232, 13 DLR (4th) 1

Jurisdiction:

Canada

Cited by:

CitedIn Re A (Minors) (Conjoined Twins: Medical Treatment); aka In re A (Children) (Conjoined Twins: Surgical Separation) CA 22-Sep-2000
Twins were conjoined (Siamese). Medically, both could not survive, and one was dependent upon the vital organs of the other. Doctors applied for permission to separate the twins which would be followed by the inevitable death of one of them. The . .
CitedHasan, Regina v HL 17-Mar-2005
The House was asked two questions: the meaning of ‘confession’ for the purposes of section 76(1) of the 1984 Act, and as to the defence of duress. The defendant had been involved in burglary, being told his family would be harmed if he refused. The . .
CitedQuayle and others v Regina, Attorney General’s Reference (No. 2 of 2004) CACD 27-May-2005
Each defendant appealed against convictions associated variously with the cultivation or possession of cannabis resin. They sought to plead medical necessity. There had been medical recommendations to move cannabis to the list of drugs which might . .
Lists of cited by and citing cases may be incomplete.

Crime

Updated: 01 April 2022; Ref: scu.213655