Very much so and case of being something joe-public can spot and report https://business.sky.com/fighting-fraud

Now if they were to offer a token reward of even £50 then they would still be ahead as they would catch them all pretty much.

Though imagine what would happen if traffic parking enforcement offered a commision to the public who reports such violations they see. Traffic wardens would be out of jobs and everybody would park much better in the long-run and many people without jobs and spare time would have a better quality of income.