From BBC News.
Only around half of fixed speed cameras on British roads are switched on, according to new data.
Figures released by 36 police forces in the UK show that of a total 2,838 cameras, just 1,486 – or 52% – are active and catching law-breakers.
Some forces have turned all their cameras off, according to information obtained by the Press Association (PA).
Northamptonshire police said its were shut off in 2011, but they left the structures in place to deter speeding.
PA sent a freedom of information to all 45 police forces in the UK and their speed camera partnership, of which 36 responded with details of their fixed speed cameras. It did not include data on the mobile devices forces use to catch offenders.
Staffordshire police said it has 272 cameras across its region but that only 14 are active. While Derbyshire said just 10 of its 112 cameras were active.
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