This Part does not extend to Scotland.
Section 1 – Abolition of constructive malice Constructive malice was the doctrine that
malice aforethought, the
mental element for murder, could be attributed to the defendant if death was caused during the commission of another
felony (such as
robbery or
burglary). Section 1 of the Act abolished constructive malice except where the
intention implicit in the other crime was an intention to kill or to do
grievous bodily harm. Thus, the automatic linkage between the other crime and the murder was broken, and juries were then required to consider more directly whether the accused was
culpable when engaging in the conduct resulting in death. But this made the Act unclear in its effect. Although the marginal note to the section purports to abolish the doctrine of "constructive malice", it did not abolish the concept of felony, the rules relating to the arrest of felons or the general rules specifying the test for the mental element which the juries were to apply. Hence, the Act did not abolish the principles of expressed malice or implied malice, i.e. malice could be implied by the words and expressions used by the accused, or there was a set of circumstances from which malice could be implied. These were objective tests that enabled the court to impute or "construct" the malice. This continuing common law was the basis of the decision in
DPP v Smith where the Lords confirmed that neither expressed nor implied malice had been repealed by the section. It was not until the
Criminal Law Act 1967 abolished the distinction between felonies and misdemeanours that the old common law rules on malice for the proof of
mens rea in felonies could no longer apply.
Voluntary manslaughter defences The act created two partial defences—
diminished responsibility and
suicide pact—to murder which, if satisfied, reduce a charge of murder to a charge of manslaughter. It also changed the law of another partial defence to murder
provocation.
Diminished responsibility In 1953 the report of the Royal Commission on Capital Punishment took the view that mental abnormality which resulted in a diminished responsibility, was relatively common and potentially of importance to a wide range of offences. The commission therefore asserted that a "radical" amendment to the existing law would not be justified for the "limited" purpose of enabling the courts to avoid imposing the death sentence. Parliament was not impressed and section 2 of the act now provides that diminished responsibility is available as a defence where the accused was, at the time of the offence, suffering from an "abnormality of the mind" which substantially impaired his mental responsibility for his acts or
omissions resulting in murder. The
burden of proof is on the accused to show that she/he was suffering from diminished responsibility. This defence is distinguishable from the defence of
insanity for while the former requires a substantial impairment of mental responsibility arising from an
abnormality of the mind, the latter requires a
defect of reason arising from a
disease of the mind. Broadly, the difference is that diminished responsibility is characterised by a temporary emotional or mental state which causes the accused to lose control over whether and how to act, whereas insanity is any inherent (internal) defect which so radically affects the defendant that he or she does not understand what is being done or that it is legally wrong to do it (other conditions may cause the accused to become an automaton, i.e. to be unable to control her/his body's movements, see
automatism and its
case law). A further distinction is that the defence of diminished responsibility reduces a murder charge to voluntary manslaughter, whereas the defence of insanity
excuses the accused of all guilt (but may require the accused to be placed in special care, say, by imposing a hospital order under section 37 of the
Mental Health Act 1983, and automatism results in a complete acquittal.
Abnormality of the mind An abnormality of the mind is a "state of mind so different from that of ordinary human beings that the reasonable man would term it abnormal". This can arise from a mental incapacity to reason properly or from an inability to exercise willpower to control physical acts. Examples of an abnormality of the mind included: • post-natal depression (
R v Reynolds [1988]) •
battered woman syndrome (
R v Ahluwahlia [1992];
R v Hobson [1998]) • excessive jealousy (
R v Vinagre [1979])
Intoxication may not constitute an abnormality of the mind unless the craving for alcohol has become involuntary (
R v Tandy [1989]). The
Coroners and Justice Act 2009 s. 52(1) amended the Homicide Act 1957 to use the phrase "abnormal mental functioning" instead of "abnormal mind" to highlight the psychological focus of this defence.
Substantial impairment of mental responsibility There must be a "substantial" impairment of mental responsibility. Whether the impairment is "substantial" is defined either according to a common-sense standard or as "more than some trivial degree of impairment but less than total impairment" (
R v Lloyd [1967]).
Section 3 – Provocation Provocation can be distinguished from diminished responsibility which recognises a reduction in
culpability because the defendant does not have the capacity to choose whether to break the law or not. The defence of provocation was based on the argument that a person who was so provoked as to completely lose their self-control should not be punished in the same way as those who murder wilfully. The defence was available under common law where the accused was provoked to lose his self-control. Provocation could be caused by things done or things the accused heard or said himself. The jury then decided whether the provocation would have been sufficient to cause a reasonable man to lose his self-control. If so, the charge could be reduced from murder to voluntary manslaughter. The accused needed adduce only
prima facie evidence of provocation. It was then up to the prosecution to prove beyond reasonable doubt that the accused was not provoked. Two conditions had to be satisfied: •
Subjective condition. For the jury to find provocation, they had to be satisfied that the accused was actually provoked and lost self-control (
R v Duffy [1949]). This was a subjective test based solely on the actual effect the behaviour of the victim had on the accused. •
Objective condition. The jury had also to find that the
reasonable person would have done as the defendant did (
R v Duffy [1949]). It was thus possible for a person to have been subjectively provoked but not objectively provoked (e.g. a particularly sensitive person) or to have been objectively provoked but not subjectively provoked (e.g. a particular insensitive person). It was also possible for the provocation to have been built up over a period of time, provided that the outburst was sudden and temporary (
R v Ahluwalia [1992]). Section 3 of the act made "the question whether the provocation was enough to make a reasonable man do as he did" the jury's responsibility. Previously this decision could be withdrawn from the jury by the judge. In 2004 the Law Commission recommended substantial revision to this defence in their report on
Partial Defences to Murder. Section 3 was repealed on 4 October 2010 by section 56(2)(a) of the
Coroners and Justice Act 2009.
Suicide pact Parliament's intention in section 4 was to show some compassion for those who had been involved in a suicide pact but failed to die. The reason for the failure might be that the means adopted proved inadequate or the survivor's commitment was fragile. In either event, the trauma of involvement in such a pact was considered equivalent to a punishment and the mandatory life sentence of murder was considered an inappropriate sentence for such defendants. Thus the act provides that where the accused kills a person, or is party to a person being killed, while acting in accordance with a suicide pact, the charge will be reduced from murder to manslaughter. A 'suicide pact' is a common agreement between two or more persons providing for the death of all those persons (whether they should take their own lives or those of each other). It is a requirement of the defence that the accused herself/himself had a "settled intention of dying in pursuance of the pact". This is to avoid the accused entering into a supposed pact with the real intention of committing murder. The burden is on the accused to prove that she/he: • was party to a suicide pact, and • had a settled intention of dying. ==Part II – Liability to the death penalty==