Iain Mac your rite their about the fire engine. i used to work with a firefighter (also a roofer) and one of the lads drivin the fire truck hit 2 people and killed them from speeding throu a light (sadly i do no 2 cases and thats y i am so against this) he was on holiday in dubai when he was arrested. his family had to sell their house cars and spend savings as the bail was nearly $1 dollars! im unsure on what happend to this man as i stopped working with his friend but i doubt he got away with it. another thing. . what if u have to move for an ambulance and go slightly over the white line and the camera flashes and you get a ticket?? is that a void??