Automatism (case Law) - Sleep

Sleep

Australian Model Criminal Code Committee state the law as follows (at 14-15):

At the minimum there needs to be some operation of the will before a physical movement is described as an act. The physical movements of a person who is asleep, for example, probably should not be regarded as acts at all, and certainly should not be regarded as acts for the purposes of criminal responsibility. These propositions are embodied in the rule that people are not held responsible for involuntary ‘acts’, that is, physical movements which occur without there being any will to perform that act. This situation is usually referred to as automatism.

In the U.S. People v Huey Newton (1970) 8 CA3d 359 holds that unconsciousness, when not self-induced say, as by voluntary intoxication, is a complete defence to a criminal act even though the defendant's acts seem very goal-oriented. The medical evidence was that " gunshot wound which penetrates in a body cavity, the abdominal cavity or the thoracic cavity is very likely to produce a profound reflex shock reaction, that is quite different from a gunshot wound which penetrates only skin and muscle and it is not at all uncommon for a person shot in the abdomen to lose consciousness and go into this reflex shock condition for short periods of time up to half an hour or so." But the reflexive activity or unconsciousness need not cause physical collapse: it can exist where the subject physically acts in fact, but is not at the time conscious of acting (cf some European continental jurisdictions classify conduct resulting from automatism under the rubric of unconsciousness). In R. v. Cogdon (1950) unreported but noted in Morris, Somnambulistic Homicide: Ghosts, Spiders and North Koreans (1951) 5 Res Judicatae 29, the defendant struck her daughter on the head with an axe while sleepwalking and dreaming about North Koreans. Her movements were not voluntary, so she was acquitted. This interpretation of automatism is consistent with Lord Denning's dicta in Bratty v Attorney-General for Northern Ireland (1963) AC 386, at 409:

No act is punishable if it is done involuntarily: and an involuntary act in this context – some people nowadays prefer to speak of it as ‘automatism’ – means an act which is done by the muscles without any control by the mind, such as a spasm, a reflex action or a convulsion; or an act done by a person who is not conscious of what he is doing, such as an act done whilst suffering from a concussion or whilst sleepwalking.

Situations involving hypnotism, concussion, and sleepwalking may involve apparently deliberate and purposeful conduct. In fact this is the case for many situation where the defense of automatism is presented - spasms or reflex actions are rarely likely to been perceived as criminally liable acts. As for sleepwalking itself, the Canadian case of R v Parks (1992) 75 CCC (3d) 287 exemplifies a certain judicial willingness to regard a sleepwalker as behaving as an automaton even though he had performed apparently goal-directed acts. The accused fell asleep in his living room. A few hours later he got up and drove 23 kilometres to his in-laws' home. Still asleep, he entered the house, found a knife in the kitchen and went to the bedroom where his in-laws were sleeping. He strangled and cut his father in-law, who survived the attack. The mother in-law died from the repeated stab wounds and the brutal beating. The medical experts at trial unanimously agreed that the accused was sleepwalking and that sleepwalking was not a 'disease of mind'. The Supreme Court agreed and held that sleepwalking can negate the voluntary ingredient of the actus reus. There is widespread disagreement among forensic sleep experts that Kenneth Parks was in fact sleepwalking - it is not entirely clear the reason why the prosecution did not call its own experts on sleepwalking, one explanation being frank disbelief that the defence could succeed.

The point made in these cases is that the key component of the two categories of cases identified by Lord Denning in Bratty is an accused’s inability to control their behaviour and not the way in which loss or impairment of the conscious or deliberative functions of the mind arises. Similarly, under the Swedish Penal Code, acts during sleep and unconsciousness, reflex movements, spasms and convulsions, as well as acts performed under physical force or hypnosis are generally not punishable. Moreover, omissions caused by sleep, weakness, physical numbness or anaesthesia are generally not blameworthy. The issue is whether the accused had the ability to control the behaviour, including taking early precautions to avoid loss of control. But, in English law, the ruling in R v Sullivan (1984) AC 156 held that, for the purposes of the M'Naghten Rules, a disease of the mind need have no permanence, leading many academics to suggest that sleepwalkers might well be found to be suffering from a disease of the mind with internal causes unless there was clear evidence of an external causal factor. In R v Burgess (1991) 2 WLR 1206 the Court of Appeal ruled that the defendant who wounded a woman by hitting her with a video recorder while sleepwalking, was insane under the M'Naghten Rules. Lord Lane said, "We accept that sleep is a normal condition, but the evidence in the instant case indicates that sleepwalking, and particularly violence in sleep, is not normal."

Overall, this emphasis on control rather than consciousness is supported by clinical science: see Hughlings Jackson on Automatism as Disinhibition (1998) 6 Journal of Law and Medicine 73, and Michael Coles who says at 37:

...on the basis of the available knowledge of human behaviour, it may be suggested that many of the crimes the courts have decided were committed in an automatistic state – that is, in the absence of conscious, volitional control, or while the mind was a total blank – actually may have occurred in a state of diminished consciousness, with the diminished consciousness resulting in the diminished conscious control of behaviour. In other words, the individual becomes disinhibited, and behaviour that the individual would otherwise be able to gains expression.