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International Court of Justice

 

Agent for the United Kingdom in the Questions of Interpretation and Application of the 1971 Montreal Convention arising from the Aerial Incident at Lockerbie (Libyan Arab Jamahiriya v. United Kingdom) case (1999-2003)

 

Agent for the United Kingdom in the Legality of Use of Force (Serbia and Montenegro v. United Kingdom) case (1999-2004)

 

Representative of the United Kingdom in the Legal Consequences of the Construction of the Wall in the Occupied Palestinian Territory advisory proceeding (2003-2004)

 

Counsel for Ukraine in the Delimitation in the Black Sea (Romania v. Ukraine) case (2007-2008)

 

Counsel for Kosovo in the Accordance with International Law of the Unilateral Declaration of Independence in respect of Kosovo advisory proceeding (2008-2010)

 

Counsel for Belgium in the Questions relating to the Obligation to Prosecute or Extradite (Belgium v. Senegal) case (2009-2012)

 

Counsel for Peru in the Maritime Dispute (Peru v. Chile) case (2009-2014)

 

Counsel for Honduras (application to intervene), Territorial and Maritime Dispute (Nicaragua v. Colombia) case (2010-2011)

 

Counsel for Timor-Leste in Questions relating to the Seizure and Detention of Certain Documents and Data (Timor-Leste v. Australia) case (2013-2015)

 

Counsel for Colombia in Question of the Delimitation of the Continental Shelf between Nicaragua and Colombia beyond 200 nautical miles from the Nicaraguan Coast (Nicaragua v. Colombia) case (2013-2023)

 

Counsel for Colombia in Alleged Violations of Sovereign Rights and Maritime Spaces in the Caribbean Sea (Nicaragua v. Colombia) case (2013-2022)   

 

Counsel for Equatorial Guinea in Immunities and Criminal Proceedings (Equatorial Guinea v. France) case (2016-2020)

 

Counsel for the United Kingdom in the Legal consequences of the separation of the Chagos Archipelago from Mauritius in 1965 advisory proceeding (2017-2019)

 

Counsel for Guatemala in Guatemala’s Territorial, Insular and Maritime Claim (Guatemala/Belize) case (2019- )

 

Counsel for Equatorial Guinea in Request relating to the Return of Property Confiscated in Criminal Proceedings (Equatorial Guinea v. France) case (2022- )

 

Counsel for Jordan in the Legal Consequences arising from the Policies and Practices of Israel in the Occupied Palestinian Territory, including East Jerusalem advisory proceeding (2023- )

 

Counsel for the Applicants in Dispute under the Montreal Convention (Canada, Sweden, Ukraine and the United Kingdom v. Iran) case (2023- )

 

Counsel for Guatemala (application to intervene) in the Sovereignty over the Sapodilla Cayes (Belize v. Honduras) case (2023- )

 

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International Tribunal for the Law of the Sea

 

Agent for the United Kingdom, MOX Plant  (Ireland v. United Kingdom), Provisional Measures (2001)

 

Counsel for Myanmar, Dispute concerning Delimitation of the Maritime Boundary between Bangladesh and Myanmar in the Bay of Bengal (2009-2012)

 

Counsel for the United Kingdom, Responsibilities and obligations of States sponsoring persons and entities with respect to activities in the International Seabed Area, Advisory Opinion, Seabed Disputes Chamber (2010-2011)

 

Counsel for the United Kingdom, Sub-Regional Fisheries Organization, Advisory Opinion (2013-2015)

 

Counsel for Côte d’Ivoire, Maritime Delimitation (Ghana v. Côte d’Ivoire), Special Chamber (2014-2017)

 

Counsel for Italy, The Enrica Lexie Incident (Italy v. India), Provisional Measures (2015)

 

Counsel for Switzerland, The M/V “San Padre Pio” case (Switzerland v. Nigeria), Provisional Measures (2019)

 

Counsel for Switzerland, The M/V “San Padre Pio” (No. 2) case (Switzerland v. Nigeria) (2019-2021)

 

 

International Criminal Court

 

Counsel for Jordan, Al-Bashir case (Pre-Trial and Appeals Chambers) (2017-2019)

 

 

Inter-State arbitration

 

Agent for the United Kingdom, MOX Plant (Ireland v. United Kingdom), OSPAR Arbitration Tribunal (2001-2003)

 

Agent for the United Kingdom, MOX Plant (Ireland v. United Kingdom), UNCLOS Annex VII arbitral tribunal (2001-2006)

 

Counsel for India, Dispute concerning Delimitation of the Maritime Boundary between Bangladesh and India in the Bay of Bengal, UNCLOS Annex VII arbitral tribunal (2009-2014)

 

Counsel for Slovenia, Croatia/Slovenia (Land and Maritime Boundary), arbitral tribunal (2010-2017)

 

Counsel for the United Kingdom, Chagos Marine Protected Area (Mauritius v. United Kingdom), UNCLOS Annex VII arbitral tribunal (2011-2015)

 

Counsel for Italy, Enrica Lexie Incident (Italy v. India), UNCLOS Annex VII arbitral tribunal (2015-2020)

 

President of the Arbitral Tribunal, Arbitration under Article 32 of the Constitution of the Universal Postal Union (State of Qatar v. Kingdom of Bahrain) (2020- )

 

President of the Arbitral Tribunal, Arbitration under Article 32 of the Constitution of the Universal Postal Union (State of Qatar v. Arab Republic of Egypt) (2020-2021)

 

President of the Arbitral Tribunal, Arbitration under Article 32 of the Constitution of the Universal Postal Union (State of Qatar v. Kingdom of Saudi Arabia) (2020-2022)

 

 

Inter-State conciliation

 

Counsel for Timor-Leste, Timor Sea Conciliation (Timor-Leste v. Australia), UNCLOS Annex V conciliation commission (2016-2018)

 

 

Investment arbitration

 

Counsel for Kazakhstan, World Wide Minerals Ltd and Paul A Carroll, Q.C. v. The Republic of Kazakhstan (2014-2015)

 

Co-arbitrator, Emergofin B.V. and Velbay Holdings Ltd. v. Ukraine (ICSID Case No. ARB/16/35) (2016- )

 

 

European Court (and former Commission) of Human Rights)

Agent for the United Kingdom in many cases before the European Commission and Court of Human Rights (1985-1990), including Soering v United Kingdom

 

Counsel for Turkey, Demopoulos and Others v Turkey, European Court of Human Rights (property in Northern Cyprus) (2009-2010)

 

 

Court of Justice of the European Union

 

Counsel for the United Kingdom (intervening), Government of Gibraltar v European Commission, General Court (2009-2011)

 

Counsel for the United Kingdom, United Kingdom v European Commission (concerning Estrecho Oriental), General Court (2010-2011)

 

Counsel for the United Kingdom (appealing), Yassin Abdullah Kadi v European Commission (Kadi II, concerning EU implementation of UN sanctions), Court of Justice of the European Union (2010-2013)

 

 

English courts

 

Aziz v Aziz and Ors, Court of Appeal, judgment of 11 July 2007 (attack on dignity of Head of State) (Advocate to the Court)

 

Ahmed and others v HM Treasury, Supreme Court, judgment of 27 January 2010 (UK implementation of UN sanctions) (Counsel for HM Treasury)

 

R (oao Maya Evans) v Secretary of State for Defence, Administrative Court, judgment of 25 June 2010 (detainees in Afghanistan) (Counsel for the Secretary of State)

 

Khurts Bat v Investigating Judge of the German Federal Court, Administrative Court, judgment of 29 July 2011 (special mission, high-ranking office and State immunity claims) (Counsel for FCO, Interested Party)

 

Mutua and Ors v Foreign and Commonwealth Office, High Court, judgments of 21 July 2011/5 October 2012 (Mau Mau emergency in Kenya: issues of State succession and limitation of actions under international law) (Counsel for FCO)

 

“Maduro Board” of the Central Bank of Venezuela v “Guaidó Board” of the Central Bank of Venezuela, UK Supreme Court, judgment of 20 December 2021 (recognition of Head of State) (Counsel for FCDO, intervening)

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