The Police of course know that the vehicles will be reduced to a trickle they can then view your windscreen re ITV...Lack of UK tax yawn... And be able to shove a couple of rounds through your windscreen should you decide to play dirty.In other words the vehicles are to a certain extent under their control instead of zipping past. Even at 70 an out of date ITV or noting of the vehicles occupants is much easier at 5-10 km an hour so I think they are not as stupid as people make out.

---