Speeding is an 'absolute' offence. If you're caught driving at 30.1mph in a 30mph zone, for just 0.1 seconds, you can be prosecuted for it. However prosecutions can be dropped when it's 'not in the public interest' to proceed with them. For example, if a doctor was caught driving at 39mph, in a 30mph zone, he might well avoid prosecution if he could show that he was rushing to attend a serious road traffic accident, with his vehicle's green lights flashing while driving on a deserted road at 3am. However most of the common excuses for speeding (such as being late for work) won't carry any weight when considered by the relevant authorities. Don't bother trying any of these excuses:
http://www.theregister.co.uk/2004/12/02/speeding_excuses/
Chris



