This would be after any criminal charges are laid and they have had their day in court.
Should they be subject to strict and lengthy up to life time parole conditions, even when found not guilty, but if they are deemed a terror threat.
If dual citizens, should they be deported?
What happens when the country they have citizenship in refuses to accept them. And they do.
What if they would be subjected to torture- The law is clear, Canada cannot deport.
2013 Public Report on the Terrorist Threat to Canada