Suspected criminals openly dealing in black market scrap and outlining their techniques in evading the police are just some practices which have been exposed. British Transport Police (BTP) co-operated with the BBC in an undercover deal involving stolen BT cable. Det Sgt Chris Hearne from BTP commented on when a buyer wanted BT details erased on the cable: “The fact he wants you to get rid of identification to me is showing he is acting in an inappropriate manner that is bordering on being criminal.”