Panorama goes undercover inside Britain's litter police and reveals some of the methods behind the soaring litter fines - over 140,000 were handed out in 2015-2016. The programme hears from people who have been stung with fines for offences like pouring coffee down the drain, dropping tiny pieces of orange peel and even leaving out their weekly rubbish. The undercover reporter goes inside one leading private enforcement company, with over 50 council contracts, to capture the litter police in action and reveals the bonus system used to reward enforcement officers for the number of tickets they issue.