蔡天鳳謀殺案審訊 警員否認單位內證物受污染

英文原標題：Police officer denies evidence was contaminated at flat in Abby Choi murder trial

英文原摘要：A police officer investigating the alleged murder of Hong Kong socialite Abby Choi Tin-fung has denied tampering with the evidence he collected from a rural village flat where her dismembered remains were found. Detective Constable Chan Wai-hung on Wednesday rejected a defence contention that the al