The biggest police force in Britain has sacked an officer who tested positive for cannabis.
The Metropolitan Police dismissed Lee Colbridge, a constable based in north London, after he failed a test.
An investigation found that he was three times over the limit deemed by drugs testers to allow him to work safely.
A Met spokesman could not say whether Colbridge had been investigating crimes while under the influence of cannabis.
The test was carried out in November 2016, according to a police statement. At a hearing on Thursday, Colbridge was found guilty of gross misconduct and fired on the spot.
Officials said Colbridge had a "good history" as a police officer, but that the offence was so serious that he had to be dismissed.
Colbridge admitted that he was a cannabis user, but only once it became obvious that he was about the be tested, the police said.
Assistant Commissioner Mark Rowley, who made the dismissal ruling, said: "The breach of standards is so serious he cannot remain an officer despite his good history."