Forecourt owners say there's been a dramatic rise in the number of drivers who are filling up and driving off without paying. They claim drivers know they won't be prosecuted, because overstretched police forces have other priorities.
Some petrol stations are now going out of business because of so-called 'bilking'.
We followed up on the case that Mr Madderson referred to in his interview. Kent Police confirmed they did receive a report of a suspected theft at that forecourt - however, they say the best option to get the money back is for managers to take civil action against the driver.