The Metropolitan Police said it was investigating, as campaigners called for more safeguards to be put in place.

BBC: Suicide couple reignite debate

Labour has opposed a badger cull, arguing it will cost more money than it saves, put strain on the police and could even spread TB as badgers flee to different parts of the country.

BBC: Cruelty to badgers 'almost doubles' ahead of cull

Ch Insp Andrew Mason, of Suffolk Police, said it has been important to tackle the issue as one can of super-strength beer can put drinkers over the recommended daily allowance.

BBC: Street drinker

But Internal Affairs has also had to police its own department, closing down its branch in Basra because, as Everett put it, the guys there were the biggest gangsters in town.

NPR: Iraq Tries to Rein in Renegade Police Forces