The Commissioner of the Metropolitan Police is calling for mandatory drug-testing at work.
Sir Bernard Hogan-Howe says that anyone failing a drug test and refusing to get help should face the sack.
He wants it to cover all occupations, but the special focus would be on teachers, transport staff and health staff working in intensive care.
The law says workers must consent to being tested, but can face disciplinary action in certain circumstances if they refuse.
More top news
As upcoming film Suffragette highlights the plight of women fighting to get the vote, we take a look at the key moments in the struggle.
As the upcoming film Suffragette is about to be released, ITV News speaks to the family of one of the key figures in the movement.
Something is afoot in Walthamstow, with several Twitter users posting videos of fights.