The appellants challenged the constitutional validity of Brian's Law, which amended the Mental Health Act to expand criteria for involuntary committal and introduce community treatment orders (CTOs).
They argued the law violated section 7 of the Charter by authorizing forced treatment with neuroleptic medication.
The Court of Appeal upheld the application judge's dismissal of the challenge, finding that the legislation's highly individualized assessment criteria ensured it was not arbitrary, overly broad, or grossly disproportionate.
The court also dismissed claims under sections 9, 10, 12, and 15 of the Charter.