The billions of pounds spent covering Britain with CCTV cameras has been an "utter fiasco" and failed to slash crime, Scotland Yard's surveillance chief has said.

Detective Chief Inspector Mick Neville said a Metropolitan Police pilot project found just three per cent of street robberies in London were solved using CCTV images.

He claimed the vast swathes of money spent on cameras had been wasted because criminals don't fear the cameras.

But Mr Neville also castigated the police and claimed officers can't be bothered to seek out CCTV images because it's "hard work".

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The comments from Mr Neville, who is the head of the Visual Images, Identifications and Detections Office (Viido) at Scotland Yard, will further cast doubt on the spread of surveillance in Britain.

Britain has one per cent of the world's population but, incredibly, 20 per cent of its CCTV cameras - the equivalent of one for every 14 people.

Last year it emerged the £200m spent on 10,000 crime-fighting cameras in London had had little effect on reducing offending.

A comparison of the number of cameras in each London borough with the proportion of crimes solved there found that police were no more likely to catch offenders in areas with hundreds of cameras than in those with hardly any.

Speaking at a security conference in London, Mr Neville claimed the use of CCTV images for court evidence had been very poor so far.

He said: "CCTV was originally seen as a preventative measure.

"Billions of pounds have been spent on kit, but no thought has gone into how the police are going to use the images and how they will be used in court.

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