The ring had operated since 2001, and used a modeling agency as a front.
Approximately 1,500 girls aged from eight to sixteen were said to have been to the agency.
Erotic materials produced by the agency were distributed over the Internet to various countries.
The agency, known as Ukrainian Angels Studio or LS Models, and had a number of different domains such as LS Island, LS Magazine, Lolitas on Holiday, LS Dreams and a series of sites under the LS Land moniker.
Patrick Amery reportedly sold his pictures in sets for £20 per disc to a large customer base around the world.
"Recently, it has come to light that he (allegedly) had sexual relationships with some of his child models...
"The boy models that Avery photographed between the early 1980's and 2008 were aged between 8 and 16, to date approximately 40 boys have been identified.
"Some of these boys are from areas not far from Bishop's Cleeve (in the UK) whilst others are from further away including Spain and Eastern Europe.
"Amery also made connections with the Continental European based photographer of boys who called himself Marcus Aurelius.
"It is understood that Amery paid the parents of his models in advance of photo sessions.
"He arranged collection of the boys to be taken to his house, where he would photograph them and (allegedly) have sexual contact with them before returning them to their own houses.
"However, following a tip-off from one of Amery's former models who himself had been arrested for sexual crimes in 2007, police closed in on Amery's enterprise.
"Amery escaped to Spain in 2009 (where the age of consent is just 14) before police got the chance to inform him that he would not be facing prosecution in the UK in return for information he had provided them about the details of his customers around the world....
"No child has requested police to press charges against Amery in relation to any alleged sexual contact in the UK."
"In 2002 LS Studios was founded by a group of Ukrainian businessmen and professional photographers.
"Within 2 years, LS Studios had 1500 children and young people who posed naked - with the consent of their parents. The models were even recruited through TV and newspaper ads...
"LS Studios published over half a million images and hundreds of videos on dozens of websites.
"In 2004, under the pressure of and with the help of the FBI, LS Studios was closed... No one was convicted...
"At this point I have to mention the so-called Non-Nude Child and Teen Modeling Sites that have been in existence since the 90s. These are websites that market images and videos of children or youngsters...
"Site-Key.com from St. Petersburg had a Visa and MasterCard merchant account with Card Service International in California, and they ran all the payments via the U.S. through a gateway link from Linkpoint...
"Child porn was mostly scanned images of Lolita magazines of the 70s, nudism, nudist pictures doctored to show them pornographic, as well as pictures of fathers abusing their daughters...
In 2009, Anand Jon Alexander, a fashion designer whose clothes have been worn by Paris Hilton, was sent to jail. He "had for many, many years been raping models who worked for him, some of whom were only 14 at the time."
"LS was in 2003-2004 the world's biggest studio providers of photographs and videos of erotica with children and young people including close-ups of genitals and breasts (but no sex)...
"The girls were from all walks of life, participated completely voluntarily, and usually with the blessing of the parents..."
"In the field of Non Nude Modeling there were sensational reports of sales of millions. Again, I had direct access behind the scenes.
"One of the largest operators in 2004 was AMS or AModelShop.
"These websites were from Salt Lake City operated by ... a TV-celebrity called Matthew Duhamel with his server administrator Charles Graner who had a hosting company and carried out operations and billings....
"Duhamel produced images of some models himself but he bought most productions from all over the world. They were mostly girls from 9 to 13 years...
"In the case of the website of Sierra Model (which ultimately brought down Duhamel), Sierra was a pubescent girl whose mother made and offered very provocative pictures.
"With the pictures they made good money and even the daughter was so thrilled that she started skipping school. Thus, the ball got rolling: the school alerted the authorities, etc.
"Russian organized crime was called in to help in exceptional cases where one wanted the authorities to be more active to push an unwanted competitor out of the way, or to kill an idiot who couldn't keep his mouth shut..."