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— Roncarelli v. Duplessis (1959): Montreal restaurant owner Frank Roncarelli was frowned upon by Quebec authorities over his support for Jehovah's Witnesses who distributed pamphlets attacking Roman Catholicism. Maurice Duplessis, Quebec premier and attorney general, prompted the revocation of Roncarelli's liquor licence. The top court ordered Duplessis to pay damages.

— Patriation reference (1981): The court ruled it was legal for the federal government to patriate and amend Canada's Constitution without the consent of the provincial governments. But the court also said amendments that would reduce provincial powers would require a consensus of the provinces.

— Big M. Drug Mart case (1985): A drugstore was accused of selling items in Calgary on Sunday, contrary to the federal Lord's Day Act. The Supreme Court found the law infringed the Charter of Rights guarantee of freedom of religion.

— Vriend case (1988): Delwin Vriend, was dismissed from an Edmonton college after acknowledging he was gay. The court ruled the failure to include sexual orientation as an illegal ground for discrimination in the Alberta Individual Rights Protection Act violated the equality rights provision of the Charter.

— Morgentaler case (1988): In response to a case brought by Dr. Henry Morgentaler and other abortion rights advocates, the Supreme Court ruled the Criminal Code law on abortion violated a woman's Charter guarantee of life, liberty and security of the person.

— Marshall case (1999): Donald Marshall Jr., a Mi’kmaq man from Nova Scotia, was found guilty of fishery violations after catching eel off-season without a licence. The Supreme Court reversed his convictions, recognizing hunting and fishing rights promised in historic treaties between the British and the M'kmaq.

— Jordan case (2016): The Charter says someone charged with an offence has the right to be tried within a reasonable time. Under a framework established by the court in the R. v. Jordan case, an unreasonable delay is presumed if proceedings — from the criminal charge to the conclusion of a trial — exceed 18 months in provincial court, or 30 months in superior court.

(Sources: Supreme Court of Canada, The ºÃÉ«tv Encyclopedia, The ºÃÉ«tv Press, The Osgoode Society for ºÃÉ«tv Legal History)

This report by ºÃÉ«tvwas first published Oct. 6, 2025.