A HALTON police officer has resigned after bosses examined unbroadcast footage of a BBC investigation into racism in the police force.

The trainee officer, who has been working in the Halton Division during his probation, was suspended by bosses on Friday.

He was filmed by undercover journalist Mark Daly during the making of shock documentary The Secret Policeman.

He later decided to hand in his resignation. The Halton officer is the latest to quit after being secretly captured on film during the exposé of racism among police recruits.

Mr Daly posed as a trainee officer for Greater Manchester Police and spent months gathering secret footage of colleagues expressing racist views and boasting about using their position to discriminate against ethnic minorities.

Cheshire Constabulary confirmed an officer from Halton was suspended on Friday and later resigned, but refused to reveal any further information about him.

They confirmed that all the cases in which he had been involved during his 'brief' time as a divisional officer have been reviewed by a senior officer, but no 'issues' were discovered.

A spokesman for the force said: 'Cheshire Constabulary has now had the opportunity to review un-broadcast material recorded by BBC journalist Mark Daly.

'As a result of viewing this further material, the Professional Standards Department suspended a probationary constable from the Halton Division on Friday, November 21. He subsequently resigned.'

Much of the footage taken by Mr Daly for The Secret Policeman was taped at a police training centre in Bruche, near Warrington, where probationary officers from divisions all over the region were also training.

The programme showed another officer, in an expletive-strewn tirade, praising the killers of black student Stephen Lawrence and criticising his family.

The same recruit was later seen donning a Ku Klux Klan-type hood and threatening to harass the only British Asian recruit on the course, while other white recruits made racist comments or failed to challenge him.

At the time of the programme, Cheshire's Chief Constable, Peter Fahy, apologised to the public and pledged to help stamp out racism within the force.