Hans Guyt, the Terre des Hommes special projects director told The Globe and Mail: “The moment we got online, we were swamped, like an avalanche.” He added: “These people think they are invisible.

Vurtial sex chat-30

We did not solicit anything unless it was offered to us.” The team behind the sting spent months identifying suspects by cross-referencing suspects’ e-mail or Skype addresses, social media profiles and other public information.

All the online conversations were recorded as evidence.

Terre des Hommes have released a documentary about the 10-week probe on You Tube and launched a petition calling for governments and police to do more to crack down on such underage sex shows.

Speaking in a webcast from the Hague, Mr Guyt said: “If we don't intervene soon, this sinister phenomenon will totally run out of control.” Describing webcam paedophilia as a “cottage industry”, he said: “It's still not too late.

' And the user added: 'Naked.' They agreed a $20 fee to be paid by a wire transfer and Sweetie asked for the person's Skype address, but took the chat no further.

Speaking to the Daily Mail, Andy Baker, of the National Crime Agency, said “tackling child sex abusers is best left to specialist law enforcement agencies”.

Hang out, flirt and socialize in an anonymous, safe and secure virtual environment.

“Our worst scenario is that the same thing will happen with this as has happened with child pornography - that is now a multi-billion dollar industry in the hands of criminal gangs.” During a demonstration last Monday, one of the researchers logged into a public chat room as Sweetie - identifying himself by her purported age, gender and country of origin.

Just seconds later, multiple pop-up dialogue boxes began appearing on his screen from people using pseudonyms and soliciting the virtual ten-year-old.

One chat between the researcher posing as Sweetie and an online user started with the fake girl asking: 'What you want see?

' The user responded: 'U.' Sweetie replied: 'What u pay for?