Judson and Spence JJ.
Quebec v Kellogg's Co of Canada
Martland J.
The province has the power to regulate a business's activities, even if those activities involve the use a federally regulated medium, such as television.
Appeal allowed
Ritchie, Pigeon, Dickson, Beetz and de Grandpré JJ.
Attorney-General of the Province of Quebec v. Kellogg’s Company of Canada and Kellogg’s of Canada Limited
Judgment for Kellogg Company in the Court of Appeal for Quebec
Laskin C.J.