The fifth edition of Constitutional Law represents a significant update of the fourth edition, published in 2013. During this period, the Supreme Court of Canada has continued to develop the jurisprudence in all areas of constitutional law, including freedom of association, equality rights, Indigenous title, and inter-jurisdictional immunity. This book includes the complete text of the Canadian Constitution, including explanatory footnotes as consolidated by the federal Department of Justice.

Professor Monahan authored the first three editions of this text, and invited Mr. Byron Shaw to join him as a co-author for the fourth edition. Mr. Padraic Ryan has now joined in this most recent revision. As with earlier editions, the aim of this text is to provide lawyers, academics, and law students with a general introduction to, and overview of, the basic elements of the Canadian Constitution. The authors discuss issues in sufficient detail so that the book will be of value to lawyers who encounter constitutional issues in their daily practice. Constitutional Law has been cited with approval by provincial and territorial appellate courts, as well as by the Supreme Court of Canada.

Patrick Monahan is Deputy Attorney General of Ontario and a Professor of Law (on leave) from Osgoode Hall Law School of York University, where he served as Dean from 2003–2009. He also served as Vice President Academic and Provost of York University from 2009–2012. He has written widely on constitutional and public policy issues and was awarded the David Mundell Medal for excellence in legal writing in 2008.

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Byron Shaw is an associate in the litigation group at McCarthy Tétrault LLP in Toronto. He has a general litigation practice that includes corporate and commercial litigation, and medical defence work for physicians and the Canadian Medical Protective Association. He has appeared before the Ontario Superior Court of Justice, the Ontario Court of Appeal, the Federal Court, the Federal Court of Appeal and the Supreme Court of Canada.Mr. Shaw received his BA (Hons) in economics and his LLB from the University of British Columbia. He has published in the areas of Constitutional Law, conflict of laws, administrative law, and private law.

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Padraic Ryan is counsel at the Constitutional Law Branch of the Ontario Ministry of the Attorney General. After being called to the Ontario bar in 2012, he clerked at the Federal Court and the Constitutional Court of South Africa. He has argued Charter, federalism, and Human Rights Code cases before the Court of Appeal for Ontario, the Divisional Court, and the Human Rights Tribunal of Ontario, and has appeared before the Supreme Court of Canada in interventions concerning constitutional law.

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