There are loads of 'guidelines' they're meant to follow but they seldom do. The problem is that for speeding cases your guilty unless proved innocent, and if you attempt to prove your innocence your fine and points go up!

They're all cunts who are WAY more interested in profit than saving lives. The Camera Partnerships are run as small businesses and it's in their interest to catch you not deter you.

They're only supposed to check your speed if they think you may be going too fast, but they don't, they just point their magic gun at every car they see.