Omar Khadr, allegedly a child soldier, was captured wounded in Afghanistan and imprisoned at Bagram, where he was denied medical treatment and psychologically abused. There is no evidence against him and he was never charged nor convicted in a court of law of any crime. He was coerced into the confession at Guantanamo, because no other evidence was available at the military commissions there.

Citizenship and Charter rights don't expire or decay for those you don't like, especially "innocent until proven guilty". You know better, I guess, than Canada's Supreme Court, who unanimously ruled that Khadr's rights had been violated by Canadian personnel traveling down to Guantanamo and collaborating in his interrogation. Legal fees have already cost taxpayers $5m, with Stephen Harper's intention to fight this civil suit to the ends of the earth. This civil settlement probably saved taxpayer a good bit.