PSNI officer agrees that prosecution witness in trial of man accused of murdering his pregnant ex-girlfriend is "suggestible"

Stephen Cahoon, aged 43, with an address at Harvey Street in Derry, has pleaded not guilty to the murder of Jean Teresa Quigley at Cornshell Fields in Derry on July 26th, 2008. The case is being heard in the Central Criminal Court. During cross-examination, a PSNI Detective Constable agreed with defence counsel that a key prosecution witness was "suggestible". The witness in question had conducted multiple interviews with Mr Cahoon's alleged visitor to Letterkenny, during which the account reportedly changed substantially regarding details such as clothing and demonstrations. Defence counsel highlighted inconsistencies in the witness's statements across six separate interviews. A Detective Sergeant denied allegations that he had threatened the witness. The trial is ongoing.