Just curious, I wonder what is the response time with a vehicle registration once it's querried? The film never mentioned what the lapse in time was from when the monitor read a registration plate and when the information was fed back.
From that perspective, if the system is being operated in traffic, if a "hit" on a vehicle passes the cop, is the suspect vehicle going to be 25 meters away or 300 meters down the roadway? I think that this application would be best suited in parking lots as it demonstrated. The highway and other public roads, I think it would be limited to the response time of the system.
Other than that flaw, I think the system looks interesting. But since many law enforcement agencies in the U.S. have systems in place, (Mobil Data Terminals=MDT's), that are linked through a national database called the National Crime Information Center (N.C.I.C.) and the Criminal Justice Information Services (C.J.I.S.), I think a random scanning registration plate system will never replace the gut instincts of a police officer on the street.
Just my .02
