http://www.dailymail.co.uk/news/article-1362493/One-CCTV-cam...
The research involved police community support officers
counting every camera in Cheshire and extrapolating the
results nationwide to provide a reliable estimate of the
level of CCTV surveillance in the UK.
Officers counted 12,333 cameras in the area, according to
a study published in CCTV Image magazine, the majority of
which were inside premises, rather than facing public
street.
The research also found that most CCTV cameras in the UK
are likely to be privately owned, with only 504 of
Cheshire’s cameras run by public bodies.
In a county of about a million people, only 500+ of the 12,000+ cameras were owned by a government body.Of course, one would think that it wouldn't be very difficult for the authorities to obtain footage from privately-owned cameras.