Mary Moreau

The Honourable Mary T. Moreau, a figure of considerable import in Canadian jurisprudence, currently serves as a puisne justice on the nation’s highest judicial body, the Supreme Court of Canada . Her ascension to this esteemed position on November 6, 2023, marked a significant moment, not least because she became the first Franco-Albertain to ever sit on the Supreme Court, a testament to her enduring commitment to minority language rights and constitutional principles. Prior to her appointment to the Supreme Court, Justice Moreau presided as the Chief Justice of the Court of King’s Bench of Alberta from October 17, 2017, until her elevation in late 2023. Her formal introduction and welcoming ceremony to the Supreme Court of Canada was a later affair, occurring on February 19, 2024, solidifying her place in the annals of Canadian legal history.

Born in 1955 or 1956, making her approximately 69–70 years of age, Mary Moreau hails from Edmonton , Alberta, Canada, a fact that underscores the geographic diversity of the Supreme Court’s bench. Her professional journey, which began as a dedicated lawyer , has been characterized by a steadfast advocacy for equitable access to justice, particularly for Canada’s linguistic minority communities. Her alma mater is the distinguished University of Alberta , where she laid the foundations for a career that would ultimately reshape the composition and focus of Canada’s judiciary.

Early life and education

Mary T. Moreau’s formative years were spent in Edmonton, Alberta , the very province where she would later achieve significant judicial milestones. Her academic pursuit of law commenced in 1976 when she enrolled at the University of Alberta Faculty of Law . Over the course of three rigorous years, from 1976 to 1979, she immersed herself in legal studies, culminating in the attainment of her Bachelor of Laws (LLB) degree in 1979. This period of intense study at the University of Alberta provided her with a comprehensive understanding of Canadian common law, a critical foundation for her future endeavors.

Demonstrating an early and profound commitment to Canada’s dual legal traditions, Moreau also undertook a specialized study program focusing on the Civil Code of Québec at the University of Sherbrooke in 1977. This decision, made while still pursuing her common law degree, was indicative of her forward-thinking approach and her recognition of the importance of understanding the legal nuances of both official languages and legal systems within Canada. Such a pursuit was particularly noteworthy for someone from a predominantly common law province like Alberta, signaling her dedication to bilingualism and biculturalism within the legal sphere long before it became a more widespread expectation for high judicial office. Following the completion of her formal legal education, she was formally called to the bar by the Law Society of Alberta in 1980, officially marking the commencement of her professional legal career.

Career

Justice Moreau embarked on her legal career as a formidable lawyer , specializing in a diverse array of fields including criminal law , constitutional law , and civil litigation . Her early practice was not merely about navigating existing legal frameworks; it was about challenging them, particularly when they failed to uphold the fundamental rights of Canadians. Throughout her tenure as a practicing lawyer, she became known for taking on complex and often groundbreaking cases, notably those centered on minority language rights and broader Charter rights , which are enshrined in the Canadian Charter of Rights and Freedoms . These cases were not just legal battles; they were foundational struggles for the recognition and protection of Canada’s linguistic and cultural diversity within the legal system. Her work in this area foreshadowed her later judicial philosophy and her profound impact on the legal landscape.

Her distinguished career at the bar eventually led to her appointment as a judge in 1994, transitioning from advocate to adjudicator. This move marked the beginning of her extensive judicial service, where her experience in diverse legal fields proved invaluable.

A significant milestone in her career arrived in 2017 when Moreau made history as the first woman to be appointed as the Chief Justice of the Court of Queen’s Bench of Alberta . This appointment, a testament to her exceptional legal acumen and leadership capabilities, placed her at the helm of Alberta’s superior trial court, overseeing a vast range of civil and criminal matters. Her leadership during this period was marked by a commitment to efficiency, fairness, and the continued modernization of the justice system in Alberta. She served in this pivotal role until her nomination to the highest court in the land.

On October 26, 2023, Prime Minister Justin Trudeau announced the nomination of Justice Moreau to the Supreme Court of Canada . This nomination was intended to fill the vacancy left by Russell Brown , who had resigned on June 12, 2023, following allegations of harassment. The process of filling a Supreme Court vacancy is always a matter of national interest, and Moreau’s nomination was particularly scrutinized given the circumstances and her unique background. Her appointment was swiftly confirmed on November 6, 2023, a date that etched another historical moment into Canada’s judicial record: it created the first female-majority bench in the entire history of the Supreme Court of Canada . This shift in composition was widely lauded as a significant step towards greater representation and diversity within the country’s highest judicial body. Furthermore, her appointment meticulously filled one of the two seats on the Supreme Court bench that are, by constitutional convention, traditionally allotted for judges originating from Western Canada, ensuring regional representation was upheld while simultaneously advancing other critical forms of diversity. The nomination was made by Justin Trudeau and the formal appointment by Mary Simon , the Governor General of Canada . During her tenure as Chief Justice in Alberta, she served under two monarchs, Elizabeth II and Charles III , and three premiers: Rachel Notley , Jason Kenney , and Danielle Smith .

Beyond her direct judicial roles, Justice Moreau has also been a passionate advocate for French-language rights within the legal profession. She is a founder of the Association des juristes d’expression française de l’Alberta, an organization dedicated to promoting and defending the rights of French-speaking legal professionals and citizens within Alberta’s justice system. This initiative underscores her long-standing commitment to ensuring that the legal system is accessible and equitable for all Canadians, regardless of their linguistic background.

Judicial philosophy

Throughout her extensive and distinguished judicial career, Justice Moreau has consistently championed the cause of equal access to justice in both of Canada’s official languages: English and French. Her judicial philosophy is deeply rooted in the principle that linguistic minorities must have the ability to engage with the legal system in their mother tongue, a right that she views as fundamental to fairness and due process within a bilingual nation. This commitment is not merely theoretical; it is a principle she has actively fought for and established through her own legal work.

A striking example of her unwavering dedication to these principles emerged early in her career as a young lawyer. She spearheaded a landmark legal battle that ultimately secured the right for Albertans to choose a criminal trial conducted entirely in French, complete with a French-speaking jury. This arduous and protracted struggle spanned six years, eventually reaching the Supreme Court of Canada , where her arguments prevailed. This victory was not just a win for her clients; it established a crucial precedent, affirming the constitutional right to French-language criminal proceedings in a province where such rights had previously been denied or inadequately provided. It was a clear demonstration of her belief that language rights are not mere procedural conveniences but essential components of justice, ensuring that individuals can fully understand and participate in legal processes that profoundly impact their lives. This foundational experience undeniably shaped her approach to jurisprudence, imbuing her with a deep understanding of the practical and systemic challenges faced by linguistic minorities in Canada. Her consistent advocacy and judicial decisions reflect a profound respect for the Canadian Charter of Rights and Freedoms and a commitment to its full realization for all Canadians.