Consent is always available in assault and battery if it has been implied
It may be used for s.47 ABH or s.20 GBH if it falls within the exceptions - Brown
Consent is never available for murder (Pretty) or s.18 GBH (Leach)
Valid consent - V must have legal capacity, a person does not have legal capacity and cannot consent if:
Minors (under 18) - Burrell v Harmer
Learning disabilities
Mental health problems
True consent - Fraud can negate consent if
The V does not know the identity of the D - Tabassum
Nature and quality of D's acts cannot be known - Dica (HIV)
Exceptions - Case of Brown created a list of activities that can be classed as lawfulfor s.47 ABH and s.20 GBH so they can be consented to:
Organised/contact sports - Must be played within the rules of the game (Barnes) or (Billinghurst)
Tattooing and branding - Consent is valid for tattooing (Wilson) but consent is not allowed for sado-masochistic activity (Brown)
Horseplay - Consent is valid for rough and undisciplined horseplay, e.g. in the playground (Jones)
Euthanasia is not an exception to consent, any person who kills a terminally ill person will be guilty of murder and if they help that person die will be guilty of assisting suicide - Pretty