McKay v. The Queen, S.C.R. 798 is an early election law

Election law

Election law is a discipline falling at the juncture of constitutional law and political science. It researches "the politics of law and the law of politics"...

 decision of the Supreme Court of Canada

Supreme Court of Canada

The Supreme Court of Canada is the highest court of Canada and is the final court of appeals in the Canadian justice system. The court grants permission to between 40 and 75 litigants each year to appeal decisions rendered by provincial, territorial and federal appellate courts, and its decisions...

 on the constitutionality of laws that limited the erection of election signs. The Court held that a municipal zoning regulation against signs on residential properties could not include federal election signs. The reading down of the municipal by-law to not include Federal election signs evidences an early stage in the evolution of the Interjurisdictional immunity

Interjurisdictional immunity

In Canadian Constitutional law, interjurisdictional immunity is the legal doctrine that prevents a law from being applied to matters outside of the constitutional jurisdiction of the enacting head of power...

legal doctrine.