Zachary Douglas KC KC > Chambers of Ewan McQuater KC and Adrian Beltrami KC > London, England > Lawyer Profile

Chambers of Ewan McQuater KC and Adrian Beltrami KC
3 Verulam Buildings


Barrister specialising in public international law, conflict of laws and arbitration. Counsel in cases before the International Court of Justice, European Court of Human Rights and other international courts and tribunals, and in investment treaty arbitrations and commercial arbitrations under the ICC, LCIA, SCC, UNCITRAL and ICSID arbitration rules. Arbitrator in more than 40 investment treaties and commercial arbitrations. Counsel in cases before the English courts on questions of international law. Formerly counsel to the IOC on all arbitrations arising from the Olympics. Professor of international law at the Graduate Institute in Geneva. Formerly lecturer in public international law at Cambridge University and Fellow of Jesus College.


Practised for several years in international arbitration and public international law at Freshfields Bruckhaus Deringer in Paris. Author of ‘International Law of Investment Claims’ (CUP 2009) and numerous chapters and articles on topics of international law.


Russian, French.


University of Melbourne (BA; LLB Hon); Oxford University (BCL; Proxime Accessit Vinerian Scholar); Cambridge University (MA; PhD).

Lawyer Rankings

London Bar > International arbitration: arbitrators

(Leading counsel as arbitrators)Ranked: Tier 1

Zachary Douglas KC3 Verulam Buildings ‘In the pantheon of star arbitrators, it is a pleasure to work with him.’

London Bar > International arbitration: counsel

(Leading Silks)Ranked: Tier 1

Zachary Douglas KC – 3 Verulam Buildings ‘Easily one of the best counsel in the world.’

London Bar > Public international law

(Leading Silks)Ranked: Tier 1

Zachary Douglas KC – 3 Verulam BuildingsHe is one of the outstanding international lawyers of his generation. He is one of a handful of counsel whose oral advocacy has changed the minds of arbitrators on fundamental issues.