That's one way of doing it. I know some people have proposed it. I believe Mr. Ménard proposed something along those lines recently.
The other way is to simply ask Parliament to receive the evidence available on the question and let Parliament decide. That, in effect, was done with terrorist groups. In the case of terrorist groups, you didn't even ask for evidence to be presented; you just received a list of organizations from foreign authorities declaring that they were terrorist groups. You accepted that evidence and declared them, by order in council, to be terrorist groups. So there was no intervention by a court authority to decide whether that was justified or not. But at the same time, in your terrorist legislation you said that if some group wanted to have its name taken off the list, they could apply to a court to have that issue studied.
All of those options are favourable.