A man has been jailed for a scam which helped motorists avoid speeding fines by giving out false addresses.
Clifford Mennell, 40, from Tavistock in Devon, was given a 33-month prison term for his involvement in the scheme.
Mennell admitted to 11 counts of conspiracy to pervert the course of justice at Salisbury Crown Court.
One of Mennell's customers, Andrew Freeston, 49, from Wiltshire, was jailed for three months for conspiracy to pervert the course of justice.
Freeston, from Wootton Bassett, pleaded guilty after an incident in the Dumfries and Galloway area.
The scam, which involved selling false names and addresses, allowed drivers across the country to speed without being caught by roadside police camera vans.
A spokesman for Wiltshire Constabulary, which uncovered the plot, said: "He [Mennell] was, by various means, which we are not able to discuss, in a position to ensure drivers caught speeding did not get prosecuted."
The scheme came to light when the force was investigating a crash in which two people died.
Inspector Paul Williams said: "The fact that drivers were able to speed in the knowledge that the ticket would be sorted out obviously had a serious effect on road safety and casualty reduction."