DPP v Majewski
if a man in his own volition takes substance with his course of conduct, this supplies the evidence of MR - sufficient enough for basic intent
specific intent offences can or cannot raise intoxicatino defence
CAN
how does involuntary intoxication come around
1 - d is drugged by others r v kingston
2 - taking medically prescibed drugs
3 - taking non-dangerous drugs (hardie, valium)