Mandatory drug testing 'bonkers' - Professor David Nutt

Professor David Nutt has said the suggestion that people should face mandatory drug testing by their employers is "bonkers".

The former advisor to the UK government said the idea - suggested by Metropolitan Police Commissioner Sir Bernard Hogan-Howe - would lead to "an enormous amount of errors" and "no net benefit".

He said a "rational approach" to drugs, as seen in the Netherlands, Portugal and Colombia - where the government has announced plans to legalise personal use of drugs like ecstasy - would have more impact.