Another unmarked van is to be used by the Derbyshire Road Safety Partnership to catch speeding motorists.
The partnership attracted controversy in March when it introduced an unmarked van to catch drivers but it has pressed ahead with a further addition to the fleet.
The existing van has also been painted a different colour.
Partnership manager Rob
ert Hill said: "Motorcycle casualties are down by almost a third compared to last year and we want to make sure they stay down.
"For us, the aim of using safety cameras is to prevent people from travelling too fast rather than to catch them.
Vans featuring the partnership or the police logo have been used for speed checks ever since the cameras were introduced – but we hope to discourage more people from speeding by creating the impression that any vehicle could be performing speed checks.
"We get no money from safety camera fines, all the fines go straight to the government."
The partnership says it will only use unmarked safety camera vans to detect high-level speeding offences on routes where high numbers of people are being killed or badly hurt in crashes.
The move comes in the midst of a month long crack down on speeding drivers by Derbyshire Police.
The number of speed traps has increased during August and police have focussed on roads which have seen accidents as well and where residents have complained of drivers speeding.
Chf Supt Lynn Harris said: "There can be no doubt that exceeding the speed limit or simply driving too fast for the road conditions is a contributory cause of many road collisions.
"The higher the speed, the more likely the risk of serious or fatal injury."
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