The facts
10 The facts alleged by the Crown are set out comprehensively in the judgment in South. I do not propose to restate them in the same degree of detail. I will attempt to encapsulate them, without doing injustice to the grounds of appeal.
11 The events giving rise to the charges took place in the late evening of 4 May 2003, and the early hours of the following morning. The complainant, who was then 18 years of age, was invited by Leigh Perrin (who was the former boyfriend of the complainant's female friend, Romaine Gattellari) to join him and Ms Gattellari at a gathering. The complainant obtained permission from her mother and Ms Gattellari picked her up by car and took her to a house in Ruse, occupied by David Annabel. Shortly after they arrived, Perrin, Willemson, Annabel, South and the appellant arrived at the house. Alcohol was supplied to the complainant as was a white powder, which was some form of amphetamine. The complainant felt unwell and telephoned another (male) friend who agreed to pick her up. However, she did not know the address and had exhausted the credit on her mobile telephone and he was unable to do so.
12 The complainant therefore remained in the house. She felt dizzy and strange. She was carried to a bedroom by Ms Gattellari, Perrin and South. Ms Gattellari left the room. All five men were then present in the bedroom.
13 The appellant removed the complainant's pants and underwear. She protested. He had penile-vaginal intercourse with her. This was the subject of the first count, of aggravated sexual intercourse without consent. South followed suit, as did Perrin. The complainant was turned on her stomach. The appellant masturbated, and ejaculated. The ejaculate covered the complainant's hair and face. This was the subject of the second count, of aggravated indecent assault. Thereafter, penises were placed in the complainant's mouth, but she was unable to identify which of the men did this. Perrin attempted anal intercourse.
14 The complainant remained at the house until 11.30am with Ms Gattellari, who drove her, initially, to her own (Ms Gattellari's) home, which was close to the complainant's home. The complainant was feeling unwell, and at one point collapsed. At Ms Gattellari's home the complainant had a shower. She slept on Ms Gattellari's bed for a time. Ms Gattellari eventually took her home at 4.30pm. She had bruises on her inner thigh.
15 On seeing the condition of her daughter, the complainant's mother screamed, and took her to a medical centre. From there she was taken to the Fairfield Hospital. She was examined by a doctor, to whom she denied having been sexually assaulted. (In the trial she said that she did this because she was "all out of it", could not speak properly, and her parents were present and she did not want them to know what had taken place.)
16 On 14 May another friend of the complainant's, Stephanie Munzone, visited the complainant. The complainant gave her an account (which appears to have been abbreviated) of the event in question. Ms Munzone persuaded the complainant to tell her parents what had happened. This she did, but not in complete detail.
17 On 16 May the complainant gave a statement to police. On 29 May the appellant voluntarily attended the Campbelltown Police Station where he took part in an electronically recorded interview. The interview was lengthy. It began at 4.29pm, and ran until 6.15pm, 1¾ hours. It extended to almost 500 questions and answers.
18 In essence, he agreed that he had been present at the house; that Perrin and South had, to his knowledge, had sexual relations with the complainant; and that he himself had masturbated, in her presence, to the point of ejaculation, and that ejaculate had struck the complainant's face and hair. He denied having had penile-vaginal intercourse with the complainant. He claimed that she was a consenting party to the entirely of the events.
19 The appellant did not give evidence in the trial. He relied upon the answers given to police in the recorded interview.