"Defendant's bad character (1) In criminal proceedings evidence of the defendant's bad character is admissible if, but only if — … (d) it is relevant to an important matter in issue between the defendant and the prosecution, …"
"For the purposes of section 101(1)(d) the matters in issue between the defendant and the prosecution include — (a) the question whether the defendant has a propensity to commit offences of the kind with which he is charged, except where his having such a propensity makes it no more likely that he is guilty of the offence; …"