By: Jennifer Koshan
Case Commented On: Alberta Teachers Association v Alberta (AG), 2026 ABKB 190
PDF Version: Back to School Act Survives Injunction Application
On March 13, 2026, Justice Douglas R. Mah denied the application of the Alberta Teachers Association (ATA) for an interlocutory injunction to suspend operation of the Back to School Act, SA 2025, c B-05 (BSA). Background on this legislation and the Alberta government’s use of the Charter’s notwithstanding clause to override the teachers’ rights to collectively bargain and strike appears in earlier ABlawg posts here and here. This post will discuss Justice Mah’s reasons, including his commentary on the role of judges in a constitutional democracy. This commentary is a sign of the times in Alberta, with the government posing threats to the rule of law and judges feeling compelled to speak out and defend their role. And it is not just the Alberta government seeking to exert more control over the judiciary. On March 24, Alberta was joined by the governments of Saskatchewan, Ontario, and Quebec in calling for a greater say for the provinces in the selection of federally appointed judges. The provinces’ letter to Prime Minister Mark Carney came during a week when the Supreme Court of Canada is hearing what many consider to be the most important constitutional case since the Charter came into effect in 1982, English Montreal School Board, et al v Attorney General of Quebec, et al, 2025 CanLII 2818 (SCC) (EMSB). EMSB involves foundational issues about the powers of judges after a government has invoked the Charter’s notwithstanding clause, section 33. As I will discuss, the EMSB case played a key role in Justice Mah’s decision.