My wife was arrested using one of these devices. The police in Montreal is testing this technology, they plan to install it on a hundred cars by the end of the year. After speaking with the police, it's clear that this technology won't affect real criminals, it will only catch honest people like my wife. I posted the story and technical details on my blog: http://www.enlighten3d.com/2008/08/03/a-computer-vision-system-arrested-my-wife/