i happin to take a road trip in PA the other day and notice this on the back of a psp car and said to myself ALPR? na cant be photo radar? cant be.first video is me watching PlateScanon in use i had no idea what this guy was doing. second video explains how ALPR works.
[ame="http://www.youtube.com/watch?v=pL_ty5QNlKc"]YouTube - 001[/ame]
[ame="http://www.youtube.com/watch?v=ikelg5uJP68"]YouTube - New Police Radar[/ame]