There are maybe three things to keep in mind.
The first is, as my colleague pointed out, the indeterminacy within the judgment itself. It's subject to competing interpretations, including the statement where they say this is about the facts of this case. It's hard to know exactly what the court had in mind.
There are two other things that I think are relevant in answering your question.
The first is that you have to have regard for the type of evidence that was before the court in Carter in relation to the type of question the court was being asked, which was whether you can have a blanket prohibition. That was round one.
Round two, as I think you rightly predict, will be a different question. That's going to be the question based on not having a blanket prohibition anymore. What we have is Parliament's best efforts, based on its objectives and the evidence before it, to strike a reasonable balance between the life, liberty, and security-of-the-person rights of people seeking assistance in dying against the objectives in relation to the protection of the vulnerable. The kind of evidence that will be before Parliament and before the court in an eventual challenge will be different, because it will be evidence comparing the relative merits and risks of the different regimes, which really wasn't what the court was looking at in Carter. We can't know now how the court will respond to that particular question.
The last piece that is also important to bear in mind is the notion of the constitutional dialogue between the courts and the legislative branch, which has been recognized by the Supreme Court of Canada in a number of cases. The best example, if you're interested in some light reading, is what transpired between the Supreme Court decisions in O'Connor and Mills. Basically what happened there was that the court articulated a very specific regime as its way of balancing the competing rights that were at issue in that case. It was in a sexual assault context. It had to do with the rules around the production of third-party therapeutic records that complainants in sexual assault cases might have.
The court created a regime, as a matter of common law, that was designed to address the constitutional issues that had been raised in that case. Not long after that decision, Parliament came back with a legislative scheme that differed in some significant respects from what the court had come up with. What the court said was that it could not be presumed, just because Parliament's scheme looked different from what the court had envisaged, that it was unconstitutional, because there's this notion of a dialogue between the legislative branch and courts. Although courts are mandated to uphold the Constitution and although they provide the general parameters within which legislators must act, they don't necessarily have the last word on how you craft a regime that meets those constitutional parameters.
In Mills, the legislative regime was upheld. The bottom line there is that there is some scope within which to manoeuvre. Obviously the committee and Parliament will have to have regard to the principles and the broad parameters that the court articulated in Carter. At the end of the day, whatever regime Parliament comes up with is going to be assessed against the objective that Parliament was striving to achieve and how rational and proportionate Parliament's solution is as a means of achieving that objective.
That's as much of an answer as I think I can give. I hope that's helpful.