It beggars belief. It really does. On 22 July 2005 one policeman holds an innocent man down while two others execute him. A total of 11 shots are fired – 7 into his head. The bullets used are ‘dum-dums’– illegal in warfare under the Geneva Conventions – with flattened noses so they cause maximum damage. The man’s head is effectively blown apart. The execution takes place in full view of the passengers of a tube train.