consent is strictly speaking not a defence as where the other person consents there is not an offence (donovan)
consent must be real not fraudulent (tabassum)
if d has not lied about who they are and qualifications it may not be fraud (richardson)
there is a difference between true consent and meresubmission (olugboja)
consent must be valid, person must be capable and of age to consent and appreciate nature of the act (burrell)
consent must be informed, victim must understand risks involved (dica)
the courts can imply consent to minor touching, everyday jostlings and situations (wilson v pringle)
defence can be raised to s47 or s20 in certain circumstances
include surgery, body piercings, tattooing and branding (wilson)
horseplay (jones)(aitken)
properly conducted sports (barnes)
dangerous exhibitions
defence can never be raised to street fighting (ags ref no6) not deemed in public interest to do so
can never be raised as a defence for sadomasochistic acts (brown)
extreme body modifications (drevil)
children under 16 can consent to medical treatment if gillickcompetent meaning sufficient maturity and understanding (gillick v westnorfolk)
reasonable and lawful chastisement (corporal punishment) of children is lawful if reasonable and proportionate in the circumstances, involving no cruelty
if medical staff acting in patients bestinterests the absence of consent would not be unlawful for mentallyincapacitated patients (f v westberkshire fa)