21. The only substantial evidence as to the appellant's brain injury and resultant disabilities consisted of the video tape of his interview with the police, though Mr Purnell also relied to some extent upon inferences which he suggested could be drawn from some aspects of the complainant's evidence. We were able to view a substantial portion of the video tape, including those portions which recorded the parts of the conversation relied upon by Mr Purnell. Whilst the accused appeared to have experienced some difficulty in responding to the first few questions put to him, he quickly overcame this difficulty and, as mentioned earlier, provided a coherent account of his version of the relevant events. Viewed overall, the manner in which he dealt with the various allegations put to him revealed no indication that his brain injury may have impaired his perceptive and reasoning ability to an extent that may have led him to overlook the circumstances from which, the Crown submitted, he must have realised that the complainant had not been consenting. Nor, in our opinion, was there anything in the evidence of the complainant that may have raised any real doubt about this issue. Furthermore, what was alleged against the accused was not a single act of intercourse with an unprotesting partner but a series of sexual acts, spanning some four hours with a young woman who not only protested but physically resisted him and screamed for extensive periods before being overpowered and, in the process, suffered at least some minor injuries. According to her version of events, the appellant also threatened violence on more than one occasion. In this context, it is difficult to see how the jury could have accepted the complainant's evidence that the relevant act occurred without her consent and yet have entertained any reasonable doubt as to whether the accused may have remained unaware that she was not consenting. The nature of the complainant's version given in evidence and the appellant's version recorded on the video tape, made consent or lack of consent the real issue in the case. Once the complainant was accepted on lack of consent, knowledge on the part of the appellant would inevitably follow. Hence, despite the jury's questions, we were unable to be satisfied that there was any real risk that the verdict was based on a finding of recklessness or, if it was, that the jury's failure to consider the limited evidence relating to the appellant's brain injury might have had a substantial impact upon the determination of that issue. Accordingly, we were not satisfied that there was any real risk that a miscarriage of justice may have occurred as a consequence of the misdirection (R v Mitton [2002] NSWCCA 124; (2002) 132 A Crim R 123).