Insanity Flashcards

1
Q

What is insanity?

A

A special defence to criminal offence, established under the M’Naughten rules, it must be proven that D is suffering from a defect of reason, which arises from a disease of the mind so D does not know the nature or quality of the act

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2
Q

If insanity is successfully proven, what is the verdict?

A

Not guilty by reason of insanity

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3
Q

What is meant by defect of reason?

A
  • This means that the defendant’s powers of reasoning must be impaired If the defendant is capable of reasoning but has failed to use those powers, then
    this is not a defect of reason
  • R v Clarke - defect of reason must be more than absent mindedness
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4
Q

What is meant by a disease of the mind?

A

This is a legal term, not a medical one.
The disease can be a mental disease or a physical disease which affects the mind
Internal cause & need not be permanent
R v Kemp
R v Sullivan

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5
Q

What is meant by not knowing the nature or quality of the act?

A

Can occur in 2 ways
D is unconscious or in a state of impaired consciousness
Or
D is conscious but due to her mental condition she does not understand what she is doing
R v Oye
R v Johnston

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