A CBC Radio report cited an immigration lawyer as saying poor Conrad could conceivably be barred from re-entering Canada after he goes to Chicago and does his perp walk thing later today.
This lawyer (sorry, name escapes me) said it's entirely up to the discretion of the immigration officer. They could decide that the charges hanging over Black are enough to bar a non-citizen like him from the country.
Update: Conrad did show up in court today and pleaded not guilty. Let the games begin! And on Saturday, Immigration Minister Joe Volpe said the government wouldn't bar Black from re-entry to the True North Strong and Free.