A paedophile hunter who helped authorities snare Peter Scully says children are 'conditioned' to turn up to cybersex dens in the Philippines every day and obey instructions from predators around the globe.

Scully's capture was a huge blow to the billion-dollar business, according to Glen Hulley, who worked as an undercover cop in Victoria for 13 years before founding Project Karma – a charity that rescues exploited children and hunts child sex tourists.

Scully, who fled fraud charges in Melbourne in 2011, was arrested in February 2015.

He was charged with a series of crimes, including murdering a 12-year-old Filipina girl, multiple counts of sexual abuse, torture, rape and human trafficking and is awaiting trial in the Philippines.

He allegedly masterminded a pay-per-view service where footage of children being tortured and abused was livestreamed for predators on the dark web, nine.com.au reports.

A paedophile hunter who helped authorities snare Peter Scully (pictured) says children are 'conditioned' to turn up to cybersex dens in the Philippines every day

Suspects in an alleged Internet porn operation cover themselves in the Philippines

There were calls for him to face the death penalty after it was alleged he directed a child porn video of an 18-mont-old baby being tortured which he sold for up to $10,000.

Police seized his hard drives in a raid on his den in the Philippines and have used the material found to break into a web of paedophiles from across the globe, including Australians, Hulley told nine.com.au.

'The Philippines is definitely a hot spot for live streaming abuse of children,' Hulley told nine.com.au.

'Where there is a demand, organised crime are the experts in delivering supply. Now, that they are involved, these cyber dens are popping up all over the place in south east Asia.'

Glen Hulley (pictured), who worked as an undercover cop in Victoria for 13 years before founding Project Karma, said the Philippines is ground zero for webcam sex tourism

Police seized computers and hard drives in a raid on Scully's den in the Philippines

Hulley, who helped law enforcement develop intelligence on Scully, said webcam sex tourism is on the up all over the world and called the Philippines 'ground zero.'

He says this is because the country has good internet infrastructure – but many live in poverty.

He said 15 children were rescued from a den in Mandanao, where young boys and girls spent the past two years working shifts in front of webcams where they obeyed the sick instructions of paedophiles for the equivalent of $25.

Scully (right) leaves the court handcuffed to another inmate after his arraignment in Cagayan de Oro City, on the southern Philippine island of Mindanao on June 16, 2015

Shockingly, Hulley said their parents were not only aware of what was happening, but many of them were involved.

'It was normal behaviour to turn up, spend two hours sitting in front of a webcam and go home with 100 pesos ($25) in your pocket.

'These children, they were conditioned to turn up every day.