London's metropolitan police are waterboarding marijuana suspects, says a police officer.

Six members of London's metropolitan police force are the focus of a criminal investigation after a corruption probe revealed allegations by a serving officer that detectives waterboarded suspects allegedly caught with a "large amount" of marijuana…

"[British] papers gave varying accounts of the exact technique used by police, with the Times saying that officers poured water on a cloth and placed it over a suspect's face to simulate the experience of drowning," reported the Associated Press. "The Daily Mail said police officers repeatedly dunked the suspects' heads in buckets of water. The reason for the discrepancy was not immediately clear."