Tony Krone reports the experience of Queensland police in the investigation of predatory behaviour by men seeking sex with children through online chat rooms. The results of his study show the aggressive and rapid way that children are targeted: in 76 per cent of cases the suspect was arrested for an offence within one month of the first online contact, in 68 per cent of cases the adult sought offline contact with the child, and in 48 per cent of cases the adult suspect was arrested at the intended rendezvous with the child.