The landmark decision is The Matamajaw Salmon Club v. Duchaine, since deceased, [1921] UKPC 94, [1921] 2 AC 426, with the
opinion delivered by Viscount Haldane for the
Judicial Committee of the Privy Council, at that time the court of last resort for the Empire,
overturning a decision from the Supreme Court of Canada, [1919] S.C.R. 223, on appeal from 27 Que.