Last mentioned: Mar 18, 2026
Supreme Court Appeal
The federal government officially seeks leave to appeal the matter to the Supreme Court of Canada.
Appellate Affirmation
The Federal Court of Appeal upholds the lower court's decision against the government.
Federal Court Ruling
Justice Richard Mosley rules the use of the Act was unreasonable and unconstitutional.
Act Invoked
The federal government invokes the Emergencies Act for the first time in Canadian history.
Convoy Arrival
Protesters and trucks arrive in Ottawa to demonstrate against COVID-19 mandates.
The Canadian federal government is seeking leave to appeal to the Supreme Court after lower courts ruled the 2022 invocation of the Emergencies Act was unconstitutional. The case will determine the legal threshold for 'national security threats' and the limits of executive power during civil unrest.