found this on a link from the LRO forum:
Rockall product test: Safety Cameras
Reduced road casualties or government flim-flam?
by Flash Gorman, Motoring Correspondent
With safety cameras a familiar site on many  indeed most  of the UK's roads, we at The Rockall Times decided it was time to put them to the test in a rigorously scientific manner. We were anxious to investigate claims that the cameras improved safety and reduced road casualties.
For our tests we found a small village with a 30mph limit and a safety camera at the entry and exit points to the village. We then drove through the village in a variety of vehicles and at different speeds. The results are recorded below.
Test One Scenario: A Ford Fiesta was driven through the village at a constant 37 miles an hour.
Test One Result: The safety cameras were activated and a speeding ticket sent in the post to the driver, arriving two weeks later.
Test Two Scenario: A Ford Fiesta was driven through the village at a constant 37 miles an hour. At a point just after the site of the first speed camera, a crash test dummy was suddenly thrown into the path of the car. This was intended to simulate a child running out from the pavement.
Test Two Result: The safety cameras were activated and a speeding ticket sent in the post to the driver, arriving two weeks later. The dummy was damaged beyond repair.
Test Three Scenario: Top motor sport star, Colin McRae, drove through the village in his highly-tuned rally car. He entered the village at 130pmh before violently braking down to 27mph for the first safety camera. He then accelerated up to 100mph before braking again for the second safety camera. This was passed at 26mph.
Test Three Result: No action was taken by the safety cameras.
Test Four Scenario: Two Rockall Times journalists consumed roughly twenty pints each of strong lager and drove a Land Rover through the village, taking occasional pot-shots at locals with a sawn-off shotgun. The Land Rover had its cruise control set to 28mph which it maintained throughout its trip. It did, however, take several detours onto the pavement and a fairly lively shortcut through the school playground.
Test Four Result: No action was taken by the safety cameras.
Test Five Scenario: An eighty-three-year-old great-grandmother in a DAF variomatic crawled through the village at 3mph, stopping seven times to adjust her mirror.
Test Five Result: The safety cameras were activated and two weeks later a ticket arrived indicating the average speed of our vintage motorist to have been 873mph. She has since been fined, banned and jailed.
Conclusion
Our test results appear to indicate that the safety cameras do nothing whatsoever to improve safety.
However, this would mean that the Government's claims as to the effectiveness of such cameras have no basis in fact. In light of the recent Hutton report we understand such an error is completely impossible. We have therefore sent our report to Alistair Campbell so that he might re-interpret the results correctly. We await his findings with eager anticipation.
Next week:
Rockall product test: The amazing new 1,115mph Fiat Uno, as verified by a Cambridgeshire police mobile speed trap.
