Law-Voluntary Manslaughter Flashcards
What is voluntary manslaughter?
Three (partial) defences to a murder charge are diminished responsibility, loss of control, and a suicide pact. If one of these defences is successful, the charge of murder is reduced to voluntary manslaughter
When was diminished responsibility introduced?
Introduced by the Homicide Act 1957-and didn’t exist in English law until then. Before 1957 if a person with mental problems killed, then their only defence was insanity which is a very narrow test that only a few defendants could use
Where is the definition of diminished responsibility?
Set out in s2(1) Homicide Act as amended by the Coroners and Justice Act 2009
What is the definition of diminished responsibility?
A person who kills or is a party to the killing of another is not to be convicted of murder if he was suffering from an abnormality of mental functioning, which (a) arose from a recognised medical condition, (b) substantially impaired defendant’s ability to: Understand the nature of his conduct; or form a rational judgement; or exercise self control, and (c) provides an explanation for the defendant’s acts and omissions in doing or being a party to the killing
What is the burden of proof for diminished responsibility?
It is on the defendant but it only needs to be proved on the balance of probabilities
What is meant by abnormality of mental functioning?
The old law stated it was ‘abnormality of the mind’. In Byrne the court of appeal described this as ‘a state of mind so different from that of ordinary human beings that the reasonable man would term it abnormal’
What are the rules for the cause of the abnormality of mental functioning?
It must arise from a ‘recognised medical condition’. This is wide enough to cover psychological and physical conditions eg depressive illnesses, paranoia, battered women’s syndrome, epilepsy, diabetes, sleep disorders etc but there must be medical evidence given at trial
What does substantially impaired mean?
In Byrne it was said the question of whether the impairment was substantial was one of degree and that it was for the jury to decide. In Lloyd it was decided that it does not mean total nor trivial or minimal. It is somewhere in between and for the jury to decide, but its a question of fact so the judge can withdraw a point from the jury if there is no/lacking evidence
What are the three things that could be substantially impaired?
Ability to do one of these three things must be substantially impaired. 1) To understand the nature of his conduct. 2) To form a rational judgement. 3) To exercise self control-these points were used in Byrne where it was decided ‘abnormality of mind’ was wide enough to covers all mind activities in all aspects, and was amended by the new law
What is ability to understand the nature of his conduct?
Where defendant is in an automatic state and doesn’t know what he is doing. Or where they suffer from delusions and believes eg they are killing the devil etc. The defendant does not understand the nature of what he is doing, this can also include sever learning difficulties with a low mental age
What is ability to form a rational judgement?
Even if defendant knows nature of their conduct, they may not be able to for rational judgement about their acts or omissions eg with paranoia or schizophrenia, or Battered Women’s Syndrome
What is ability to exercise self control?
This was the situation in Byrne, who was a sexual psychopath and medical evidence showed he was unable to control his desired, and therefore diminished responsibility was a defence available to him
What happens once it is established that the defendant has an abnormality of mental functioning?
It has to be proved that it provides an explanation for their acts/omissions in doing or being a party to the killing. This is a new principle introduced by the amendments made by the Coroners and Justice Act 2009
What does section 1B of the Homicide Act 1957 explain?
“…an abnormality of mental functioning provides an explanation for the defendant’s conduct if it causes or is a significant contributory factor in causing, defendant to carry out that conduct’
What happens when diminished responsibility is linked to intoxication?
There is a clear rule that intoxication alone cannot support a defence of diminished responsibility (Dowds-murdered girlfriend by stabbing her 60 times whilst drunk-appeal rejected)
What happens where there is intoxication and a pre-existing abnormality of mental functioning?
Dietschmann-killed victim after he was disrespectful to the memory of defendant’s aunt who had just died. Defendant had an adjustment disorder (depressed grief reaction to the death of his aunt) but had also drunk a third of a bottle of whisky and two pints of cider before the killing
Which cases then used the points made in Dietschmann?
Hendy and Robson, and in both cases the court of appeal quashed their murder convictions and substituted convictions for murder and is likely to be followed in cases under the new definition
What is intoxication due to addiction/dependency?
Alcohol dependent syndrome meaning a person cannot control drinking. Under the old law, in the case of Tandy, the court of Appeal held that where the defendant is unable to resit drinking, so that it is involuntary, this could amount to diminished responsibility, The decision in Tandy was criticised as it only looked at whether the defendant was unable to prevent themselves from drinking. It didn’t consider whether alcoholism is a disease