Speeding fines issued by roadside cameras have dropped by 60 per cent according to a Scottish newspaper report.
The Scotsman reckons that speed cameras north of the border are failing to pull their weight when it comes to keeping the local council and coppers' coffers full by automatically emptying motorists' wallets.
Those in favour of the government-supported daylight robbery machines will try to tell you that the cameras are having an effect on driving habits and that people are cutting their speed making the world a safer place for puppies and other beings not capable of looking both ways when crossing the road.
But motoring organisations which don't get a cut of the millions of pounds of revenue generated by speed cameras reckon the change in fortunes is down to another bit of modern technology: the Sat Nav.
Apparently, almost half of us now own either a standalone navigation device or a phone capable of spotting a sneaky Gatso from miles away. Combine that with the fact that there's not much space left for more cameras, and we all now know exactly where they are, and you have a more compelling reason why the cash cow is failing to provide milk.
"As a speed camera spends longer at one spot on the road, regular users have to be quite daft to be caught at it," said an RAC spokesman.
As it happens, it's now far more common to see people wildly accelerating and decelerating between the cameras, which seems rather dangerous to us.
With Sat Nav systems available for as little as £80 and speeding fines running at a minimum of £60, not to mention the headache of three points on your licence every time you go a few miles above the almost ridiculously arbitrary speed limits, it's not hard to see why speed cameras are becoming a liability rather than a life-saver.