London is considered the most spied-on city in the world, courtesy of its ubiquitous CCTV cameras, purportedly there to reduce crime. But according to a recent report, there's been little or no change in London's crime rates since they were more widely installed in the mid 1980s.
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BBW estimates there are now some 51,000 police-run cameras watching British citizens in urban areas, not including private cameras or cameras situated in other public buildings like train stations or bus depots.
A common figure cited is a total 4.2 million cameras across the Britain based on a working paper published in 2002, by academics Michael McCahill and Clive Norris but research last year by Cheshire Police puts the figure closer to 1.85 million.
But Ms. Carr says that without official registrations and research it is impossible to calculate.
The civil rights group Liberty estimates that the average Londoner is captured on camera around 300 times a day while BBW claims Britain has 20 percent of the world’s CCTV cameras and only 1 percent of the world’s population.
There is a perception that the cameras reduce the crime rate, but there is no evidence for that, say activists. “The Met police have said that in 2008, only one crime was solved for every 1,000 CCTV cameras,” says Carr.