I managed to get onto it this morning, I tried pulling a few cars over (after pressing A to bleep them) and they all seem to carry on and the marker disappears from the map. on the 1 occasion I rammed a car into a wall to stop him and he just sat in the car with his hands up no attempt to run away or get out and shoot at me, then I had to try and put the person under arrest in to the car which didn't seem to work and I couldn't call for police backup to pick him up.
Anyone else had similar issues and found a fix?