Ralph is charged with sexually assaulting Peggy after a party. Ralph, who has no previous convictions, admits that he organised the party and was present at it but denies the charge and raises the defence of mistaken identity. The prosecution wishes to call Stephen to give evidence that Ralph has organised other parties over the past few months and has been frequently seen (by Stephen) in local public houses distributing invitations to women. Will Stephen’s evidence be admissible? Ralph is charged with sexually assaulting Peggy after a party. Ralph, who has no previous convictions, admits that he organised the party and was present at it but denies the charge and raises the defence of mistaken identity. The prosecution wishes to call Stephen to give evidence that Ralph has organised other parties over the past few months and has been frequently seen (by Stephen) in local public houses distributing invitations to women. Will Stephen’s evidence be admissible?