general defences Flashcards
what is the definition of intoxication?
The defendant needs to be so intoxicated that they were incapable of forming the mens rea of a criminal offence
what are the 4 types of intoxicants?
1) alcohol, 2) prescription drugs, 3) illegal drugs, 4), solvents
what needs to happen for a substance to be classed as an intoxicant?
the substance must have the expected side effects to be classed as an intoxicant
what are the 2 requirements for intoxication
is the offence a specific or basic intent offence, was the intoxication voluntary or involuntary.
what is the definition of voluntary intoxication
the defendant takes something knowing or which he should have known was an intoxicant.
what was found in the case of R v Allen
the defendant doesn’t need to know the strength of the intoxicant
what was the developing law of voluntary intoxication and specific intent offences and what was the test?
If D was so drunk that the was incapable of forming the intent required then he couldn’t be convicted ofa crime. DPP v Beard
what is the modern day test for voluntary intoxication and specific intent offences.
R v Sheehan and Moore
what did Wiggerly LJ say about R v Lipman
D couldn’t be convicted of murder because specific intent could not be proven, he could still be convicted of manslaughter.
what decision was made from A-G for Northern Ireland v Gallagher (1963)
If a man, whilst sane and sober forms an intention to kill and makes preparation he cannot rely on this self-induced drunkenness as a defence to a charge of murder nor reducing it to murder
what are the 3 requirements of non insane automatism?
1) defendants actions must be involuntary, 2) the actions must be cause by external factors, 3) automatism cannot be self induced
what are the 3 requirements of insane automatism
1) a defect of reason ( R v Clarke), 2) a disease of mind( R v Kemp), 3) not knowing the nature and quality of the act( R v Johnson).
what rule was found in M’Naghten
every man is to be resumed to be sane, and to possess a sufficient degree of reason to be responsible for his crimes, until the contrary be proved to their satisfaction”
what type of defence is self defence
complete defence ( be found not guilty as they have a lawful excuse)
what are the 2 types of duress
duress of threats and duress of circumstances.