Nick Lester, corporate director of services at London Councils, said: “The DVLA has simply not thought this through. There is an issue about whether the car genuinely was where the enforcement officer said it was, and this is a problem with cloned cars and ringers. If somebody gets a ticket and they insist the car has been cloned, the serial number on the tax disc removes all doubt. If the vehicle has been cloned it’s got a different tax disc number. It’s a very useful check. It’s going to be much harder to prove if the vehicle was there or not.”