Did you know that every time your car goes past a speed camera, even 1mph
over the set limit it is registered and put on a database? You get a ticket only if you are way over the limit or, (this is the bit that I didn't know) if you receive over 20 near misses, you will be classed as a serial offender and get a ticket the next time you go just over the limit.
This is why you hear of people being done for 34mph in a 30 limit area whilst others doing 39 do not. Following the Governments freedom of information act you can now get access to speed camera offences registered in the last 12 months. You can check what has been registered against your vehicle at the following address
http://www.e-database.co.uk/ You will be asked for a password but just click on the "need a password" Link and you will be given one for future use. If there is any data on your vehicle you can click on the camera window to see a copy of the photograph.