Catalytic converters are being stole all too often. If somebody turns up with 20 catalytic converters surely scrap yards should be reporting this instead of paying them! 

Organised gangs are earning alot of money this way. Large car parks have been targeted such as Thorpe park. How can they be able to sell on hundreds of them without no questions being asked? 

Police should be dropping by scrap yards keeping a check. It’s the only way this crime is going to be tackled.