Yusuf Jamma has admitted firing the fatal shot
One of five men accused of murdering Pc Sharon Beshenivsky after an armed robbery said he spent his £10,000 share of the haul trying to evade arrest.
Yusuf Abdillh Jamma, 20, of Whitmore Road, Small Heath, Birmingham, told Newcastle Crown Court: "Being on the run is not cheap".
He has admitted firing the fatal shot and robbery but denies murder.
Four men are on trial for their involvement in Pc Beshenivsky's death in Bradford on 18 November 2005.
A fifth man, Muzzaker Imtiaz Shah, 25, has already pleaded guilty to murder and was cleared on Wednesday of the attempted murder of her colleague, Pc Teresa Milburn.
Jamma told the jury he had received around £10,000 for his part in the raid at the Universal Express travel agents but when he was arrested nine days later only £204.20 was recovered.
Pc Sharon Beshenivsky died while on duty in Bradford last year
When quizzed about where the money had gone he could not account for it.
He said: "I used it. Being on the run is not cheap. I was not counting what money I was spending."
Earlier, Jamma admitted the gun which killed Pc Beshenivsky was discharged while it was in his possession.
But he denies firing the 9mm pistol intentionally.
The three other accused, Raza Ul-Haq Aslam, 25, of St Pancras Way, Kentish Town, north London; Faisal Razzaq, 25, and his 26-year-old brother Hassan, both of Sebert Road, Forest Gate, east London, all deny murder.
The trial continues.