A taxi driver jailed for life for murdering an office worker in England accused the senior detective who brought him to justice of being a "corrupt bastard", a court there has heard.
Christopher Halliwell, 52, who is on trial accused of killing a second young woman, told Detective Superintendant Steve Fulcher that it was a "pleasure ruining your career".
Halliwell, who is conducting his own defence against the charge of murdering Becky Godden, 20, questioned Mr Fulcher during cross-examination.
Mr Fulcher had been called by the prosecution to give evidence at Bristol Crown Court during Halliwell's trial and he told the jury he was now working as a consultant in Somalia.
After asking Mr Fulcher a few questions clarifying points the officer had made in statements relating to his leading of the investigation into the disappearance and murder of Sian O'Callaghan, Halliwall indicated he had one more question to ask.
He told Mr Fulcher: "Oh and by the way, it was a pleasure ruining your career. You corrupt bastard."
The defendant is currently serving a life sentence with a minimum term of 25 years after admitting stabbing and strangling Miss O'Callaghan, 22, in 2011.
Halliwell, formerly of Ashbury Avenue, Swindon, has pleaded not guilty to murdering Miss Godden.