Brian is the Chair of Blakes Competition, Antitrust & Foreign Investment Group, widely regarded as the leading practice in Canada. He is past chair of the Canadian Bar Association's National Competition Law Section. Brian is regarded as the one of the world’s leading practitioners in his field. For almost 25 years, Brian has advised clients in hundreds of regulatory matters, including cross-border and domestic merger transactions, criminal cartel cases, class actions, and distribution and advertising matters under the Competition Act. A key part of his practice involves advising foreign investors, companies and states under the provisions of the Investment Canada Act and the State-Owned Enterprise Guidelines, which regulate the acquisition of control of Canadian businesses by non-Canadians. He is a leading authority on the Investment Canada Act, and author of The Investment Canada Act: Commentary and Annotation (LexisNexis). Brian’s treatises have been cited by all levels of courts in Canada, including the Supreme Court of Canada for his work on efficiencies and strategic mergers. He has also appeared on behalf of clients before the Competition Bureau, the Competition Tribunal, the Federal Court, the Federal Court of Appeal and various levels of Ontario courts.