lol i've watched most of their tactics and they make me chuckle, i do like to toy with them.
recent one is the copdock interchange roudabout is over the a12, cop sits on the top section looking down slip road, cop car waiting in a layby just before the bridge.
the trick is to wizz down the slip road, the jam sandwich on the top calls his mate who then nips out, usually about 1/4 of a mile behind, you can then watch him snake through traffic to catch up with you.
he sat on my rear bumper but i was doing the speed limit. its quiet funny because i could see him playing peek a boo in my review mirror as he was hidding behind the car behind me.
you then chuckle as he has to go down the next slip road to then go back to his original hiding place.
i thought it would be nice to give them something to do.