A Fixed penalty speeding fine in the UK is 3 points added to your license and a £60 fine.
This is a way to quickly penalise and process people who are found to be over the speeding limit without the need for going to court. You have to be within limits set out by the government to be put in the fixed penalties category. You can find these at limits, penalties and summons anything over the guidelines set out could result in a court appearance which over and above the cost of making an appearance in court means you could also be liable to pay more on your fine and potentially get more points depending on the severity of the claim against you.
The fine itself is widely accepted and very rarely challenged, usually because there will be some sort of photographic evidence to back up the claim. Fixed speed cameras such as Gatsos, and Truvelo where the regional police force may even take the step to post you the picture to reinforce the case of an offense being committed and nullify any resistance you may put up. This is also the problem with putting up a defence because the perceived risk associated with fighting a massive organisation when their job is the law can be very overwhelming, especially when by doing such a thing could end up costing you a lot more in court costs and fees. You should bear in mind there are still things you can do to defend yourself and safeguard your license, ranging from sending templates to hiring £10,000 lawyers. There are 2 things Iwould consider if you don’t already have one get yourself a Radar detector such as a Road Angel. These things will nip that fine in the Bud before it even happens 9 out of 10 times, or invest in a little ebook I used myself to prevent 6 points being added to my license using legal tactics, templates and expertise to prevent or reverse a speeding fine. Remember the police do make mistakes and a lot of the time will rely on either you admitting guilt if you are physically stopped by police, or rely on nobody making a fuss.