insanity Flashcards
What case Defined and set out the defence of insanity
M’Naghten Rules - Insanity
How is insanity defined?
‘Labouring under such a defect of reason, from disease of the mind, as not to know the nature and quality of the act he was doing wrong’
What is the first thing to prove under insanity?
A defect of reason
What case defined defect of reason?
clarke
Must be more than mere forgetfulness
What is the second stage to prove for insanity?
A disease of the mind
What is a disease of the mind?
A mental disease or a physical disease which affects the mind - must be an INTERNAL cause
What case defined disease of the mind (hardening of the arteries)
Kemp - Disease of the Mind
Hardening of the arteries is classed as a disease of the mind
What case defined disease of the mind (epilepsy)
Sullivan - Disease of the Mind
Epilepsy constitutes as a disease of the mind
What case defined disease of the mind (high blood sugar levels)
R v Hennessy - Disease of the Mind
High blood sugar levels because of diabetes were classed as insanity
What case defined disease of the mind (sleepwalking)
Burgess - Disease of the Mind
Sleep walking is within the legal definition of insanity
what case defined disease of the mind (external factors not disease)
Quick - Disease of the Mind
External factors aren’t disease of the mind
What is the third stage in proving insanity?
Not knowing the nature and quality of the act OR does not know what he was doing was wrong
What is meant by ‘Not knowing the nature and quality of the act’?
Refers to the physical character of the act and if D didnt know what he was doing
What two ways can not knowing the nature and quality of the act be proven?
A) D does not know nature and quality of act
B) He knew what he was doing but did not know it was morally or legally wrong
what is a case for knew what they were doing but did not know it was legally or morally wrong (Defence failed)
Windle -
D knew his conduct when he stated ‘I suppose they will hang me for this’