The appellants, pharmaceutical manufacturers and distributors of opioid products, challenged the constitutional validity of s. 11 of British Columbia's Opioid Damages and Health Care Costs Recovery Act, which authorizes British Columbia to act as representative plaintiff in a class action on behalf of all federal, provincial, and territorial governments in Canada unless they opt out.
The majority held that s. 11 is intra vires, characterizing its pith and substance as a procedural mechanism under s. 92(14) of the Constitution Act, 1867 (Administration of Justice in the Province) that facilitates intergovernmental cooperation without creating or altering substantive rights.
The majority further found that s. 11 maintains a meaningful connection to British Columbia and respects the legislative sovereignty of other governments.
Côté J. dissented, finding that the pith and substance of s. 11 engages and derogates from property and civil rights of extra-provincial governments under s. 92(13), that no meaningful connection exists, and that ss. 11(1)(b) and (2) should be severed as ultra vires.