A man has been arrested in Thailand after the children's modelling agency he owns was linked to a global child exploitation ring being investigated by South Australian police.
The Thai Department of Special Investigations charged the 28-year-old Thai national with a range of offences, including sexually assaulting children under 13 and taking away children aged under 15 for indecent purposes.
Thai authorities say he was using the modelling agency as a front to access and abuse children, then record and distribute footage and images of the horrific crimes.
The man was first arrested last May after Thai authorities searched the modelling agency's headquarters while investigating the alleged activities of another man identified as part of an SA Joint Anti Child Exploitation Team investigation.
Police in Thailand say they seized several electronic devices with more than half a million files of child abuse material and charged the 28-year-old with possessing the illegal content.
On February 11, Thai police searched the man's home, which is also used as the offices of the modelling agency, and charged him with the further offences.
The international investigation - which started in Asia - has already led to the jailing of nine offenders in Thailand and Australia since May 2018.
It has also resulted in the identification of more than 100 child victims, including the removal of numerous children from immediate harm in Australia and overseas.
Australian Federal Police Commander Peter Sykora said the latest arrest shows the impact of law enforcement agencies working together.
"There are no borders when it comes to protecting children and investigations are ongoing to identify and rescue victims wherever they are located," he said.
SA JACET, which consists of Australian Federal Police and South Australia police officers, launched Operation Bayldon in late 2017 after a referral from Interpol.
With help from the Thai Department of Special Investigation, Interpol identified a website trading in pay-per-view child abuse material, featuring boys from Asia.
An administrator of the website, a Thai national, was found to live in Adelaide.
In January 2018, simultaneous police searches in Thailand and Adelaide led to arrests in both countries.
SA investigators reviewed more than 850,000 video and image files seized from the Adelaide-based site administrator, which showed him sexually abusing multiple children, including babies.
In May 2019, he was sentenced to 40 years and three months' jail in Adelaide - the longest sentence imposed for child sexual offences in Australia at the time.
SA investigators shared information about other perpetrators and victims in Thailand with authorities there, leading to further international arrests.
SA Police Detective Chief Inspector Richard Lambert said the investigation had led to the removal of children from further harm.