For those of you saying this is a bad or illegal stop, google 'Terry Stop'. I think the plate/DL information is more than enough for a Terry Stop. And yes, scanning the plates is legal. Just like I can take a picture of anything I see in public, he can look at your openly displayed plates and run them. In fact the case can be made that since they run every plate there is no bias or discrimination involved. This has been going on for a long long time, Ohio is late to the game.