A PERVERTED policeman — who performed a sex act in a squad car in front of a young girl he was supposed to be helping —has had his claims he was wrongly convicted thrown out by top judges.

Kristian James Abbott, aged 29, was jailed for 21 months at Manchester Crown Court in November, 2008, after he was found guilty of engaging in sexual activity in the presence of a child.

Having since been released from prison, Abbott, of Cannon Street, Radcliffe, brought a legal battle against his conviction to the Court of Appeal in London yesterday.

Mr Justice Cranston said Abbott picked up a 15-year-old girl who had run away from a care home in 2007.

At the Court of Appeal yesterday, Andy Fitzpatrick, for Abbott, argued fresh DNA testing on Abbott’s uniform trousers cast doubt on the jury’s verdict and made his conviction “unsafe”.

But three senior judges called his arguments “thoroughly bad”, and dismissed the appeal, saying the test would not have affected the jury’s verdict.