7.30's Mark Willacy goes inside the covert sting operation that brought down a global paedophile ring, including its South Australian ringleader.
Read more here: http://ab.co/1WRuXDW
For more from ABC News, click here: http://www.abc.net.au/news/
Subscribe to us on YouTube: http://ab.co/1svxLVE
You can also like us on Facebook: / abcnews.au
Or follow us on Instagram: / abcnews_au
Or even on Twitter: / abcnews