Ministers fear that thousands of cameras have served only to raise millions from motorists, rather than improve safety.
The findings, from an initial sample of 75 local authorities, will prompt the Government to call on every council to publish detailed information on each speed camera site, including accident rates and how much has been raised in fines.
Ministers hope that local authorities will succumb to pressure to remove the controversial devices if the information does not demonstrate that accidents have been cut.
Oh dear! It seems that the people who advocate putting cameras on every street corner were wrong and that folk like me who said that driver training is more important that on street management were right.
I'm sure we've not heard the last of this - just as with CCTV (where the Home Office knows it doesn't reduce crime), the enthusiasts for lucrative speed cameras will be out there shroud waving. And ignoring the evidence.