Court Martial Appeal Court  of Canada

Court Martial Appeal Court of Canada

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  4. The Honourable Mary J.L. Gleason

The Honourable Mary J.L. Gleason

Justice Gleason was born in Regina, Saskatchewan, lived most of her youth in Calgary, Alberta, and pursued her university studies in Ottawa and Halifax. She obtained a B.A. (Honours) in History (summa cum laude) from the University of Ottawa in 1981 and a Bachelor of Laws (LL.B.) from Dalhousie University in 1984.

Justice Gleason was appointed a judge of the Federal Court and an ex-officio member of the Federal Court of Appeal on December 15, 2011. She was appointed a judge of the Court Martial Appeal Court on March 7, 2013 and a judge of the Federal Court of Appeal on June 19, 2015.

Prior to her appointment, Justice Gleason was a senior partner with Norton Rose, LLP (formerly Ogilvy Renault, LLP) and practiced labour and employment law in Ottawa with that firm for nearly 26 years. She held a number of management positions within her firm, including that of co-managing partner of its Ottawa office and Ottawa Chair of its Employment and Labour Group. She was recognized as a leading labour and employment practitioner by Best Lawyers in Canada, L’Expert, PLC Which Lawyer?, Guide to the World’s Leading Labour and Employment Lawyers, and Canadian HR Reporter’s Canada’s Employment Law Directory.

Justice Gleason frequently guest lectured at the University of Ottawa and taught a course in employment law at the Faculty of Law of the University of Ottawa. She has written numerous articles and regularly presented papers to conferences hosted by a variety of organizations, including the Canadian Bar Association, the Ontario Bar Association, the Canadian Refugee Lawyers’ Association, the Advocates’ Society, the Council of Canadian Administrative Tribunals, the Law Society of Upper Canada, Insight, Lancaster House, the Council of Industrial Relations Executives of the Conference Board of Canada and the Canadian Association of Counsel to Employers (CACE), an association of Canadian management-side labour and employment practitioners. Justice Gleason was a founding member and past president of CACE. She also was active in the Canadian Bar Association and the Ottawa Human Resource Professionals’ Association, where she held the portfolio of Government Affairs Liaison on its Board of Directors for a number of years.

Prior to her appointment to the Federal Court, Justice Gleason was a member of the Canada Industrial Relations Board’s Client Consultation Committee and the Federal Court Labour Law, Human Rights, Privacy and Access Review Liaison Group. She now co-chairs this Liaison Group and is a member of the Federal Courts Rules Committee.


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