“If you do any research you’ll see it is from anywhere,” Hopkins said.
Yet the business is nearly always immune to policing and almost never results in a conviction.
A live webcam feed on the computer screen showed the faces of three white men glaring out.
Apart from the scene witnessed as the raid took place, police say they had a video showing the mother sexually abusing her children.
It was submitted by an anonymous source from a western country who used his phone to film the abuse on his computer screen.
In the Philippines, there have been only two convictions for this type of abuse. Unlike previous forms of child sexual abuse, there are no photos uploaded to the internet that police can track.
Instead, the conversations are live and encrypted through Skype, and payment is made by anonymous wire transfers.
Next month, Unicef will launch a campaign to educate young people about the risks of the online world.
The UK’s #We Protect project, an international alliance to fight online child abuse, has promised £10m to the campaign.
But those numbers belie the true scale, according to Det Supt Paul Hopkins, the head of the Australian Federal Police team in Manila who has spent the past two years investigating the crime.
Wearing a short-sleeved, Filipino-style shirt, he described the size of the trade as “monstrous”.
‘It is big money’ Stephanie Mc Court, the south-east Asia liaison officer for the UK’s National Crime Agency, said the Philippines provided a perfect storm to allow the crime to develop, with its entrenched poverty and high level of internet access for a developing country.