He appears regularly before the Supreme Court of Canada, as well as Courts of Appeal in Ontario, he has also appeared as counsel in British Columbia, Alberta, Saskatchewan and Québec. In 2006, he was appointed Commission Counsel to the Commission of Inquiry into the Investigation of the Bombing of Air India Flight 182 (the Air India Public Inquiry). In 2008, he was appointed by the Minister of Justice (Canada) to the roster of security cleared Special Advocates to conduct National Security litigation.
In 2010, Mr. Kapoor was appointed to serve on the Prime Minister’s Advisory Council on National Security. Mr. Kapoor is an Adjunct Professor at Osgoode Hall Law School where he has taught in both the J.D. and L.L.M. programs. He is a regular speaker at continuing legal education seminars throughout Canada, has been a guest lecturer at Oxford University, and has spoken at various conferences in the United Kingdom on security matters. Mr. Kapoor authored Kapoor’s Criminal Appeals Review, a Lexis/Nexis Publication, from 1999 to 2005, and continues to publish extensively. He has also been asked to testify on national security and criminal law issues before the Senate of Canada Standing Committee on National Security and Defence.
From 2011-2014 Mr. Kapoor served on the Board of Directors of the Advocates Society, a professional organization dedicated to promoting excellence in advocacy.
Mr. Kapoor is a fellow of the American College of Trial Lawyers, the International Academy of Trial Lawyers and the International Society of Barristers.
Mr. Kapoor currently serves on the Board of Directors of the Canadian Civil Liberties Association. As well, he serves on the Foundation Board for Woodgreen Foundation.