THIRTEEN OLD SQUARE CHAMBERS

Email
T: +44 (0) 20 7831 4445
Home
About us
Directories
Areas of practice
Members
Instructing us
Fees
Complaints proceedure
Clerks
News
Resources
Articles
Useful links
Recruitment
Pupillage
Established practitioners
Contact us
Location
Facilities
Regulatory
Call me
Back to home

Simon Olleson (PDF)

Simon Olleson

Year of Call: 2002
Education: B.A. (Hons) (Cantab) (2000); LL.M. (NYU); Dip. Int. Law. (Cantab)
Languages: French (fluent); Italian (fluent); German (basic)
Email:simonolleson@13oldsquare.com

Areas of practice

Simon specializes in public international law; his practice includes advice and advocacy in relation to traditional inter-State disputes (including before the International Court of Justice), investment protection disputes, international human rights law, issues of sovereign immunity, State succession and the law of the sea, as well as litigation before the English courts involving issues of public international law.

He is recommended by Chambers and Partners UK 2012 as a Leading Junior (Band 3) in public international law, where he is described as " quickly establishing a reputation as an 'excellent junior' for a wide array of PIL matters" and as having "supported many of the leading silks in the field on investment protection disputes, international human rights law cases, and issues of sovereign immunity, state succession and the law of the sea". He has previously been recommended by Chambers and Partners UK since 2008, described variously as having "a growing practice in a wide range of PIL matters, including maritime delimitation, [ICSID] cases and immunity/succession matters" (Chambers and Partners 2011); as handling "all aspects of PIL" and as "held in high regard by his peers" (Chambers and Partners UK 2010), and as "extremely intelligent, astute and very practical," (Chambers and Partners UK 2009).

Simon has appeared as counsel before the International Court of Justice, as well as before arbitral tribunals operating under the auspices of the International Centre for the Settlement of Investment Disputes. He has also acted as secretary or clerk to the tribunal in a number of international investment protection disputes, as well as acting as clerk to the tribunal in a multi-million dollar commercial arbitration in relation to a failed tourism infrastructure project.

In addition to his international law work, Simon also has a broad domestic practice, advising and providing advocacy in general chancery and commercial law. He has appeared regularly in the County Courts, as well as in the High Court (Chancery Division, Queen's Bench Division and Commercial Court).

Prior to coming to the Bar, Simon was a Research Associate and subsequently Fellow at the Lauterpacht Centre for International Law of the University of Cambridge, with which he still retains links. He acted as assistant to Professor James Crawford, Special Rapporteur on State Responsibility, in the summer of 2001 during the International Law Commission’s final consideration and adoption of the Articles on Responsibility of States for Internationally Wrongful Acts and accompanying commentaries. Previously, he also acted for a time as an external legal adviser to the Permanent Mission of Austria to the United Nations, New York.

Simon was a Visiting Fellow at the British Institute of International and Comparative Law from February to August 2007, during which time he undertook a research project, partially funded by the Foreign and Commonwealth Office, investigating reliance on the International Law Commission’s Articles on State Responsibility by international and domestic courts and tribunals. He has also provided commentary for television on questions of international law.

In May 2009, at a ceremony in Bucharest hosted by the President of Romania, Simon was made Cavaler (Knight) of the Ordinul Naţional "Serviciul Credincios" (National Order "Faithful Service") of Romania in recognition of his work on behalf of Romania in the Case Concerning Maritime Delimitation in the Black Sea (Romania v. Ukraine) before the International Court of Justice.

He is a member of the European Society of International Law (ESIL) and the British Branch of the International Law Association (ILA), and is a Member of the ILA’s Committee on Baselines under the International Law of the Sea.

Notable cases and recent work

Publications

Forthcoming Publications