Adam Freeman, son of notorious Sydney drug dealer George Freeman, who pleaded guilty of manufacturing the drug ecstasy estimated to be worth $3 million, faces a maximum sentence of life in jail.

He was extradited back to Australia in August 2011 after the NSW police issued a global arrest warrant against him on drug supply charges according to the Daily Telegraph.

It was believed that Freemen fled the country a day after authorities arrested two co-accused men, Andrew Moss and Michael Haynes, for a random breath test near Tamworth. The police allegedly found 20kg of ecstasy and equipment to manufacture drugs from their rented van. The Crown claimed that they operate at a property near the area.

Investigation documents reported that Freeman's fingerprints were found on glass flasks found in the van. His fingerprints were also found on a toaster and a kettle when members of Strike Force Harrower raided the suspected property where they manufacture drugs.

One of the men flew to Sydney in December to meet with Freeman after the two were granted bail. "Following this meeting, Freeman purchased an open ticket to Hong Kong, paying cash," the court documents said. He flew to Bangkok afterwards, until he volunteered himself to authorities after the global arrest warrant was issued.

On Wednesday, he pleaded guilty to a single charge of manufacturing a 19.2 kilograms of ecstasy at Werris Creek between November 23 and December 6, 2010. His barrister, Ronald Driels, requested for at least six weeks to prepare the case.

Chief Judge of the District Court, Reg Blanch, adjourned the hearing to November 7 for the sentence.