Thursday, May 01, 2008
Laser Speed Gun Readings
Just in case you need to know...
This is from theNewspaper.com:
"The basic operation problem is that handheld laser speed guns must take two separate measurements of distance to generate a speed estimate. If, while taking a speed reading, an officer's hand twitches slightly, the laser beam can 'slip' from one portion of a vehicle to another. The extra distance measured in the second reading is then added to the calculation that determines the speed readout. For example, if the speed gun's aim point slips from the windshield to the grill, the speed reading will read 8 MPH too high. London's Daily Mail newspaper, the BBC, and ITV network have each run stories exposing fundamental flaws in the way laser guns estimate speed."
