A deportation order has been issued for an American man known as the "Godfather of Grass.''
The Canadian immigration board has also ruled that John Robert Boone will remain behind bars in Montreal until the order is carried out.
Boone, 73, watched today's hearing by videoconference and made a brief statement saying he isn't a danger to the public.
Boone had been on the run for eight years when he was arrested in Montreal in December, several months after city police opened an investigation at the request of U.S. officials.
He had apparently entered the country illegally.
The U.S. Marshals Service says authorities had been looking for Boone since seizing 2,400 marijuana plants on his Kentucky farm in 2008.
Boone spent more than a decade in a U.S. federal prison after being convicted in the 1980s in what prosecutors called the "largest domestic marijuana syndicate in American history.''
Meanwhile, La Presse quotes his girlfriend, Carolyne Whitebean, saying that he has lived a quiet life for years in the Montreal area, specifically in Chateauguay and in Kahnawake, sometimes working in the native tobacco trade.
Whitebean says she first got to know him as Denis Ross, and came clean about his identity, and his legal troubles, a short time later. She describes him as a kind and helpful man who enjoyed caring for her grandchildren.
U.S. Marshals received a tip about his whereabouts last year and passed the information along to Canadian authorities. They learned that Boone often did his shopping at Alexis Nihon Plaza downtown.
-CJAD 800's Trudie Mason and Richard Deschamps contributed to this report.