Police chief says workers should be screened for drugs use
17 May 2012 Last updated at 13:19 BST
The Metropolitan Police Commissioner has said that testing employees for drugs at work could discourage recreational users.
Bernard Hogan-Howe said compulsory drug testing should be a "condition of employment" and that those who test positive should be given the choice between changing their lifestyle or being sacked.
He made the suggestion during a speech given to the think-tank Policy Exchange in London.
BBC Radio 5 live's Victoria Derbyshire asked Graham Sievers, the director of business development at one of the biggest global commercial drug testers, Concateno, what he made of his suggestion. Former drug users Andy Tutte and Richard (not his real name) also gave their reaction.
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