A CARETAKER who had spent almost two years in prison after being found guilty of raping a 14-year-old girl was freed yesterday when the Court of Appeal held that his conviction could not stand. Allowing the appeal of Tsui Kin-cheung, 28, the court agreed that the trial judge had failed to direct the jury adequately on the issue of consent and this failure had rendered the conviction unsafe and unsatisfactory. The court, comprising the Chief Justice Sir Ti Liang Yang, Vice-President Mr Justice Macdougall and Mr Justice Bokhary, also declined to order a retrial. Mr Tsui was found guilty by a jury on one count each of rape and indecent assault after a trial before Deputy Judge Daniell in December 1992. He was sentenced to seven years' jail. It was the Crown's case a group of men aged between 15 and 29 forced the girl to go to a flat in Tuen Mun on May 27, 1991. She was allegedly raped by Mr Tsui and a youth.