The appellant (18 years old) and the complainant (16 years old) were friends. On the night in question, they met and went to a bar where the complainant consumed a significant amount of alcohol (a litre of beer and two 'hand grenades'). After meeting with the complainant's boyfriend, they went to a second park where the complainant vomited again. The complainant testified that the appellant sexually assaulted her by touching her breasts and buttocks without consent, and then strangled her until she lost consciousness. When she regained consciousness, her pants and underwear were around her ankles. The appellant's version was that he fell asleep at the park and woke to find the complainant asleep with her pants down, with faeces nearby. Mr Jones, a neighbourhood watch member, saw them in the park around 05h00 and 05h30. Medical examination by Dr Liang revealed petechial spots on the complainant's forehead, bruising around her eyes and neck, and bilateral subconjunctival haemorrhage. The complainant initially lied to her mother, police and doctor about who perpetrated the assault, to protect the appellant.