The most recent thing I can find on the web says they have to inform the registered owner within 14days still, else you can contest it.
http://www.telegraph.co.uk/cars/advice/the-truth-about-speeding-fines/Anyway, I'm weirdly arging for the sake of it.. it's good to know the loopholes.
I managed to avoid a fine after getting clocked by a mobile van on the M4 doing 84 in a 70..
My company responded to them in good time and told them my [the driver] details and sent me an email saying they had done this.
I sent my company an email (and kept a copy) pointing out they had told them my old address.
They told me to leave this with them and they would rectify this...
I also sent my correct details to them with their reference number and all the information they requested...
Nothing...
5months later a policeman calls my company, trying to contact me..
I call him back explain, with evidence what had happened and that I had done everything in my power to rectify this. I also layed it on that I had found all of this, the threat to my license and job very stressfull and I just wanted them to take the necessary action.. Also if they had some discretion I would appreciate it, and perhaps as a first offender I might benefit from a speed awareness course...
Then I heard nothing.. It had obviously gone beyond the 6month period so they could not prosecute me. No action was taken, I heard nothing and forgot all about it...
so my only loophole advice would be to delay the time between getting caught and the final prosecution, perhaps by being as compliant as possible, but by moving addresses a few times during their process. ;-)