A spokeswoman for the National Police Chiefs' Council said the decision to use cameras was "an operational matter", adding that "all forces have individual responsibility for their use of speed cameras".Mr King said: "Many of the empty yellow cases are due to cuts in road safety grants and the fact that digital cameras, although more effective, are very expensive.
Staffordshire Police have 272 fixed cameras across their patch, but just 14 of them are active, while the Derbyshire force operates 112 cameras with just 10 of them catching speeders.
"They are a flawed road safety policy and the only way to truly improve that is with more traffic police officers on the roads." She added: "I am glad there are only 52% working - and we'd actually like to see less." Neil Greig, spokesman for the charity IAM Road Smart, which campaigns to make roads safer by improving driver and rider skills, said it believed all speed cameras should be active.
He said: "Drivers should be in no doubt that every yellow box they pass is active and police forces and safety camera partnerships should all be aiming for their cameras to be vigilant 100% of the time." And Jason Wakeford, director of campaigns for road safety charity Brake, said: "A staggering 1,800 people lost their lives on British roads last year and speeding is a factor in thousands of crashes.
Born in Barnsley in 1832, Hudson Taylor made it his life's work to take Christianity to the Chinese, spending more than 50 years there and leaving a legacy which is carried on by his descendants to this day.
Last month a group of about 15 Chinese Christians visited the town and went to the Salem Wesleyan Reform Church in Blucher Street, where there is a plaque to commemorate the missionary work of Hudson Taylor.