Yeah they use stelth cars with all the strobes hidden behind the windows or in the grills here too for some traffic patrols where they're trying to catch speeders, dangerous drivers etc.
They've rolled out a TrafficWatch number here where by you can phone a 1-800 number and report traffic violations to a call centre that passes it on to local gardai (police) who investigage. All very strange getting members of the public to inform the police like that.
