The thing you're talking about is actually something that's the subject of the Ontario Mental Health Act. It's the mental health act that allows people to be committed to psychiatric treatment if they are a danger to themselves or others. We incarcerate people in correctional facilities when they've been convicted of a crime, so it's a separate matter. We don't convict them and incarcerate them in order to treat them against their will.
On October 29th, 2009. See this statement in context.