No, there is no contradiction, Nigel. All you have to do is recognise no system is perfect and like the horse meat scandal, there will always be people who want to beat the system if their might be a profit to be made.

(That was a success for the EU, by the way. As I say, there will always be cheats. But they were detected, then traced back to source and the offenders stopped. In the real world, that is successful crime detection.)