A Superior Court judge is hearing final arguments Friday on whether a man who drove a city bus into a Montreal-area daycare should be declared a high-risk offender.

Pierre Ny St-Amand was found not criminally responsible in late April because of a mental disorder for killing two children and injuring six others on Feb. 8, 2023.

The Crown says Ny St-Amand should be declared a high-risk offender, a designation that would impose stricter rules on him while he is detained at a treatment centre.

His defence team is opposing the Crown’s application and has challenged the constitutionality of the high-risk designation.

Quebec Superior Court Justice Éric Downs will hear arguments on the constitutional challenge in mid-November.

Killed in the daycare crash were four-year-old Jacob Gauthier and

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