Case of the week

Superintendent Ray Mallon, the pioneer of zero tolerance policing in the UK, has learned that he will not face criminal charges after a £5m investigation into how the so-called 'Robocop' squad got information from the Teesside underworld. Mallon, whose drive against petty crime and anti-social behaviour has influenced Home Secretary Jack Straw's own liberal pronouncements, had been suspended for two-and-a-half years. The allegations primarily of 'heroin-for-grassing' deals were based on evidence from convicted criminals who had named 600 other officers.