Police errors, camera problems and admin delays are all to blame for nearly 250,000 speeding fines being dropped each year.
On average this amounts to one-in-ten speeding fines being cancelled, but in some areas this is as much as one in four.
See also: Britain's speeding hotspots revealed
Home Office statistics showed Greater Manchester Police had to withdraw 33,893 speeding offences in the 2016-17 period (28 per cent of all fines), the largest of any force across the country.
Drivers disputing their penalties frequently had their fine dropped, with administration hold-ups when fines were issued more than 14 days after the incident contributing to the number of cancellations. Technical issues with camera equipment and simple police errors have also been found to be at blame, according to finance experts This is Money.
Analysis by Adam Snow, a lecturer in criminology at Liverpool Hope University, found that more than 10 per cent of the 2.2 million speeding offences given out in the 2016-17 period had to be dropped. This equates to 241,165 scrapped fines in just a year.
The news comes just after chief constable Anthony Bangham made controversial remarks that drivers should be fined for doing just 1mph over the speed limit. He has since come out to say that it would not be feasible to punish drivers in such a way.
Freeman added: "Before even considering ludicrous proposals for a zero tolerance approach to speeding, forces need to get their houses in order."