Im pretty sure they get you from from front aswell because I remember an article in the sun newspaper a while back and it involved a copper attending a call and when he went through a speed camera head on it took a picture of the front of his car showing him with both his thumbs up, because of this he got done for not holding on to the wheel. It showed the picture aswell. Basically it caught him head on & also if the camera flashed & u was alone on the road then I suggest u hope the next 2week pass quickly