Jim, that just sucks. Probably not a big fine, but it's just wrong, IMO.
As Stijn said, any radar detector is detectable by the police, if they have a specially tuned receiver that is sensitive enough to detect the extremely weak radio frequency emissions from the radar detectors internal electronics (simple description). Your V1 is looking both front and rear (even kind of sideways, too), so, your radar detector is unshielded in these directions and it emits low-power radio frequency signals that the police are able to intercept with their receiver (Spectre). Oh well.
