The freedom of information request revealed no evidence from tv detector vans was directly used in prosecution. But apparently tv detector van evidence was use

The freedom of information request revealed no evidence from tv detector vans was directly used in prosecution. But apparently tv detector van evidence was used for search warrants that then lead to further evidence that was used in prosecution. Yes. The primary purpose of the tv detector vans was fearmongering. But they did exist (in small numbers), and they were at least semi-functional.