The Supreme Court of Canada is the country’s final court of appeal, and what it does is settle the legal questions that no other court in Canada can finally resolve. Sitting in Ottawa with nine justices, it hears roughly 60 to 80 appeals a year across criminal, civil, and constitutional law, and its rulings bind every other court in the country.1Supreme Court of Canada. Getting Here It also interprets the Canadian Charter of Rights and Freedoms, resolves disputes between federal and provincial law, and answers legal questions the federal government refers to it directly.
The Last Stop for Canadian Law
“Final” has a specific meaning here. Once the Supreme Court rules, there is no higher Canadian court to appeal to, and since 1949 there has been no appeal available anywhere else either. Before that year, Canadian litigants could carry their cases past the Supreme Court to the Judicial Committee of the Privy Council in London. Parliament abolished those appeals and gave the court full autonomy as Canada’s ultimate appellate body.2Supreme Court of Canada. The Supreme Court at 150 From that point forward, Canadian law has been settled in Canada.
The court was itself created later than Confederation. The Supreme and Exchequer Court Act received royal assent on April 8, 1875, establishing a national appellate body nearly a decade after the country came together.2Supreme Court of Canada. The Supreme Court at 150
How Cases Reach the Court
Cases arrive at the Supreme Court through three routes, and the differences matter for anyone trying to understand what the court actually spends its time on.
Appeals as of Right
In a narrow set of criminal matters, a party can appeal to the Supreme Court without asking permission. The most common trigger is a dissent on a point of law at the provincial or territorial court of appeal. If a person is convicted of an indictable offence and a judge below dissents on a question of law, the accused can take the case straight to the Supreme Court. The same right exists where an acquittal is overturned on appeal with a dissent on a legal issue.3Justice Laws Website. Criminal Code RSC 1985 c C-46 – Section 691 The reasoning is practical: if experienced appeal judges cannot agree on the law, the question deserves a final answer.
Leave to Appeal
Most cases arrive by leave, meaning the court has to agree to hear them. Under the Supreme Court Act, leave is granted when a question is of sufficient public importance, or raises a significant issue of law or mixed law and fact that warrants the court’s attention.4Justice Laws Website. Supreme Court Act This gatekeeping covers every area of law, from contract disputes to constitutional challenges, and lets the court spend its limited time on questions that will clarify the law for the whole country.
The court receives hundreds of leave applications a year and grants only a fraction. A panel of three justices reviews each written application, usually without oral argument. Applicants need to show that their case goes beyond the private interests of the parties, often by identifying a novel legal point or a split between provincial appeal courts on the same issue. When the panel denies leave, the lower court’s ruling stands, and the court issues a brief order without reasons. The silence is deliberate; the court does not have time to explain every refusal.
Reference Cases
The federal government can skip ordinary litigation and send a legal question directly to the court under Section 53 of the Supreme Court Act. The Governor in Council can ask about the constitutionality of proposed legislation, the division of powers between Parliament and the provinces, or any other important question of law or fact.5Justice Laws Website. Supreme Court Act – Section 53 References have produced some of the court’s most consequential opinions, including rulings on Senate reform, same-sex marriage, and Quebec secession. They let the court resolve major national questions before they turn into years of regular litigation.
Guardian of the Charter
Nothing the court does affects everyday life more than its role interpreting the Canadian Charter of Rights and Freedoms. The Constitution Act, 1982, makes the Constitution the supreme law of Canada, and any law inconsistent with it is of no force or effect. When someone argues that a statute or government action violates a Charter right, the case can end up at the Supreme Court for a final ruling.
Charter analysis runs in two stages. First the court asks whether a protected right has been limited. If it has, the analysis shifts to Section 1 of the Charter, which permits limits that are reasonable and “demonstrably justified in a free and democratic society.”6Department of Justice Canada. Section 1 – Reasonable Limits The framework for that justification is the Oakes test, named for the 1986 case R. v. Oakes, and it has shaped nearly every major Charter decision since.
The remedies available when the court finds a violation are significant. Under Section 24 of the Charter, a person whose rights have been infringed can seek whatever remedy a court considers appropriate and just, and evidence obtained through a Charter breach can be excluded if admitting it would bring the administration of justice into disrepute. Under Section 52 of the Constitution Act, 1982, the court can strike down an entire law or declare particular provisions of no force or effect.
What a Supreme Court Judgment Means
After oral argument, the justices deliberate privately, sometimes for months, and then release a written judgment. A ruling can be unanimous, or it can split between a majority opinion, concurrences from justices who agree with the result for different reasons, and dissents from justices who disagree. Dissents have no binding force, but they matter. A well-reasoned dissent can signal where the law may move next, and lower courts sometimes cite them as the legal landscape shifts.
Every decision binds every lower court in Canada: provincial courts of appeal, superior courts, and federal courts alike. When the Supreme Court interprets a statute or a Charter right, that interpretation becomes the law of the land until the court revisits the issue or Parliament amends the underlying statute. For constitutional rulings, even Parliament’s options are narrow, because amending the Constitution requires the federal Parliament plus at least seven provinces representing 50 percent of the population.
Who Decides These Cases
The Supreme Court Act sets the bench at nine: one Chief Justice of Canada and eight puisne (junior) justices.4Justice Laws Website. Supreme Court Act The current Chief Justice is the Right Honourable Richard Wagner.7Supreme Court of Canada. Meet Our Judges At least three justices must come from Quebec, giving the bench the expertise it needs in that province’s civil law tradition, which is rooted in French civil law rather than the English common law of the rest of the country. By longstanding convention, Ontario fills three seats, the Western provinces two, and the Atlantic provinces one.
In 2022, Justice Michelle O’Bonsawin became the first Indigenous person appointed to the court. An Abenaki member of the Odanak First Nation, she had taught Aboriginal People and the Law at the University of Ottawa and researched Indigenous sentencing principles.8Supreme Court of Canada. The Honourable Michelle O’Bonsawin
To be eligible, a candidate must be either a sitting judge of a superior court or a lawyer with at least ten years at the bar of a province or territory.4Justice Laws Website. Supreme Court Act Justices serve until the mandatory retirement age of 75. The Governor in Council makes the formal appointment on the advice of the Prime Minister, drawing from a shortlist produced by an Independent Advisory Board that reviews applications for each vacancy.9Prime Minister of Canada. Prime Minister Carney Announces Members of the Independent Advisory Board Candidates are expected to be jurists of the highest calibre, functionally bilingual, and representative of the country’s diversity.10Prime Minister of Canada. Prime Minister Carney Launches Process to Select the Next Judge of the Supreme Court of Canada The bilingualism expectation is reinforced by the Official Languages Act, which requires that federal courts be able to hear cases in both English and French without interpreters.11Justice Laws Website. Official Languages Act
Watching a Case
Hearings happen before the full bench or a smaller panel; the Act requires at least five justices for any hearing, and panels of seven or nine are common for major cases.4Justice Laws Website. Supreme Court Act Many hearings also include interveners, organizations or individuals who are not parties to the dispute but have a stake in the outcome. Civil liberties groups, industry associations, provincial attorneys general, and Indigenous organizations regularly intervene to raise perspectives the parties themselves may not. A case that began as a dispute between two private parties can attract a dozen interveners, each illuminating a different consequence of the court’s potential ruling.
The court broadcasts many hearings live on its website, with English, French, or floor audio, and archives past recordings.12Supreme Court of Canada. Live Hearing Not every hearing is webcast, so anyone planning to watch a specific case should check the scheduled hearings page in advance.