International Investment Arbitration Substantive Principles

Campbell McLachlan, Essex Court Chambers and Professor of Law, Victoria University of Wellington,Laurence Shore, Partner, Herbert Smith and Professor of Arbitration at Queen Mary, University of London,Matthew Weiniger, Partner, Herbert Smith and Professor of Arbitration at Queen Mary, University of London

Campbell McLachlan is Professor at Law at Victoria University of Wellington, specializing in Public and Private International Law. Educated at Victoria (LL.B (Hons), 1984), and at the University of London (Ph D (1988)), he holds the Diploma cum laude of the Hague Academy of International Law (1985). Until his return to New Zealand in 2003, Campbell was in practice in London, where he was a partner in the international law firm Herbert Smith. He led the firm's International Law Practice Group, and conducted many cases involving sovereign states. He has been Rapporteur of the International Law Association Committee on International Civil and Commercial Litigation (1992-2002) and Chair of the IBA International Litigation Committee (2001-2003). In 2005, he was invited to become an editor of the 14th edition of Dicey and Morris on the Conflict of Laws, with special responsibility for arbitration and foreign currency obligations.

Laurence Shore specializes in international commercial arbitration and litigation. He has practiced at the U.S. State Department and the Washington D.C. law firm Williams & Connolly, appearing as advocate in cases before the U.S. Federal, State and Administrative Courts. He has acted as advocate in significant arbitrations under, for example, the UNCITRAL, ICC, and AAA Rules.
Laurence has advised on matters of public and private international law, and United States law. His experience in London and the US has enabled him to act successfully in matters such as Hague Convention Letter of Request proceedings in England, arising out of US tobacco litigation.


Matthew Weiniger is a solicitor advocate who specializes in international arbitration and public and private international law. He acts and advises in international cases across all major industries. He has extensive experience as an advocate in arbitration cases. Many of his cases involve governments. He has worked under all the major arbitration systems including the International Chamber of Commerce (ICC), the London Court of International Arbitration (LCIA), International Centre for Settlement of Investment Disputes (ICSID), Stockholm Chamber of Commerce (SCC) and the United Nations Commission on International Trade Law (UNCITRAL) Rules. He also has advised energy companies and governments on the public international law aspects of transnational infrastructure projects. Matthew lectures on arbitration and public international law, and is a visiting professorial fellow at the Centre for Commercial Law Studies, Queen Mary, University of London.