“While the credit of any witness may be impeached by the opposite party (R v Gunewardene[1951] 2 KB 600 at 609), there is no warrant or authority for such oath-helping as occurred in the circumstances of this case reminiscent as it is of the method before the Norman Conquest by which a defendant in a civil suit or an accused person proved his case by calling witness to swear that the oath of the party was true.”
“We are disposed to agree with the editors of Cross on Evidence, 6th ed. (1985), p. 295 that where the disputed issue is a sexual one between two persons in private the difference between questions going to credit and questions going to the issue is reduced to vanishing point. I read from that work: ‘It has also been remarked that sexual intercourse, whether or not consensual, most often takes place in private, and leaves few visible traces of having occurred. Evidence is often effectively limited to that of the parties, and much is likely to depend on the balance of credibility between them. This has important effects for the law of evidence since it is capable of reducing the difference between questions going to credit and questions going to the issue to vanishing point.’” ‘It has also been remarked that sexual intercourse, whether or not consensual, most often takes place in private, and leaves few visible traces of having occurred. Evidence is often effectively limited to that of the parties, and much is likely to depend on the balance of credibility between them. This has important effects for the law of evidence since it is capable of reducing the difference between questions going to credit and questions going to the issue to vanishing point.’”
“The test whether the matter is collateral or not is this: if the answer of a witness is a matter which you would be allowed on your own part to prove in evidence – if it has such a connection with the issues, that you would be allowed to give it in evidence – then it is a matter on which you may contradict him.”
“The difficulty we have in applying that celebrated test is that it seems to us to be circular. If a fact is not collateral then clearly you can call evidence to contradict it, but the so-called test is silent on how you decide whether that fact is collateral. The utility of the test may lie in the fact that the answer is an instinctive one based on the prosecutor’s and the court’s sense of fair play rather than any philosophic or analytic process.”
“… at common law evidence about the lack of previous sexual experience of a complainant, and about her attitudes and religious beliefs that intercourse before marriage was wrong, can relate to the issue of consent, and, if it does, is capable of being relevant and therefore admissible, even though it may at the same time go to bolster credibility.”
“The stark way in which it is put is this 16 year old is a liar and I do not see why in this very limited way the jury should not have some assistance on that issue”
“The credibility of [the complainant] and the credibility of the defendant are important matters and you know a little bit more about the two individuals. You have heard character references and witnesses talking about Mr Tobin. You have also been told his position in the round, warts and all, that he has got convictions, he has been before the Court before some time ago, nothing like this. That is in order you should know the entire picture.”
“Well, picture [the complainant] now, look back to the way she presented herself, what you know about her, what her mother said about her both before the 27th February and also perhaps afterwards. Has she told you the truth?”