I'm not wrong and the Khadr case has not already been decided.  I don't know where you copied your "Morguard and Hunt" paragraphs from but you need to understand that each case is tried on its own merits.  The court will review the foreign judgment and consider many factors.  The quote in your paragraph does nothing to help your case.  I think it is unlikely a Canadian court will enforce a default judgment obtained while the defendant was in a foreign prison and obtained under radically different laws than those we have in Canada regarding this type of thing.