The charity set up its online decoy in what it claimed was the biggest study to date into ‘webcam child sex tourism’. It sent Sweetie into forums for troubled south-east Asian youngsters and said 20,172 paedophiles responded within ten weeks. Details of the 1,000 people it managed to identify were sent to Interpol. However, police will only be able to prosecute the suspects if they gather their own evidence. Mr Guyt said: ‘The biggest problem is that the police don’t take action until child victims file reports but children almost never report these crimes.’ UN figures suggest up to 750,000 paedophiles are online at any one time and 2million children are embroiled in prostitution.