10. The second and third grounds of the notice of appeal may be dealt with together. Counsel relied on the decision of the High Court in Weissensteiner v. R [1993] HCA 65; (1993) 117 ALR 545 where Mason CJ and Deane and Dawson JJ in a joint judgment stated at 552: ".... it has never really been doubted that when a party to litigation fails to accept an opportunity to place before the court evidence of facts within his or her knowledge which, if they exist at all, would explain or contradict the evidence against that party, the court may more readily accept that evidence. It is not just because uncontradicted evidence is easier or safer to accept than contradicted evidence. That is almost a truism. It is because doubts about the reliability of witnesses or about the inferences to be drawn from the evidence may be more readily discounted in the absence of contradictory evidence from a party who might be expected to give or call it. In particular, in a criminal trial, hypotheses consistent with innocence may cease to be rational or reasonable in the absence of evidence to support them when that evidence, if it exists at all, must be within the knowledge of the accused." And at 553: "There is a distinction, no doubt a fine one, between drawing an inference of guilt merely from silence and drawing an inference otherwise available more safely simply because the accused has not supported any hypothesis which is consistent with innocence from facts which the jury perceives to be within his or her knowledge."