david cameron said:“I ask the Labour government not to return to retribution and war on drugs,” he pleaded back in 2002. “That has been tried and we all know that it does not work.” His wisdom was not restricted to word, but was evident in deed, too. As a member of the home affairs select committee on drug misuse, he voted to consider “the possibility of legalisation and regulation” of drugs.
http://www.theguardian.com/commentisfree/2015/jun/03/david-cameron-drugs-legal-highs-poppers-madness