The Metropolitan Police have confirmed recently from a large survey that CCTV cameras have made little contribution to solving crime generally, despite the large number of them. There are about 1 million cameras in London, and a further 1.8 million elsewhere.
The effectiveness in solving crime, except for some special cases, such as thefts from cars in car parks, is small, and expensive.
The cameras are installed because people feel more secure, and because local councils have a further (unnoticed) way of snooping on people. Officials can also always shrug their shoulders at failure to prosecute criminals by claiming that they did try.
The problem is that generally the images are not clear enough to enable identification to be confident, and in some cases the storage of images has failed.
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