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Public International Law

Allen & Overy advises national and international corporations, financial institutions, international organisations, governments and States on all contentious and non-contentious aspects of public international law. Our market-leading practice includes specialists in environmental law, regulatory compliance and risk management, dispute resolution, anti-bribery and corruption, anti-money laundering, public law, human rights and sanctions.

A&O’s public international law advisory work includes:

  • The drafting and interpretation of international treaties and conventions
  • Maritime, territorial and boundary rights
  • State succession
  • International sanctions regimes
  • Privileges and immunities of States and international organisations
  • Recognition of States and State succession
  • Title to natural resources and international environmental law
  • Use of force and international humanitarian law
  • Space law
  • Trade law

We also advise on contentious Public International Law matters, including State-to-State disputes under public international law, including boundary disputes, and have a market-leading investment treaty arbitration practice. 

Our experts have acted as counsel before international courts and special tribunals, such as the Iran-US Claims Tribunal, and advised states on out-of-court strategies for dispute resolution, including before UN fora. We are also one of only a handful of law firms with experience of contentious World Trade Organisation proceedings.

News & insights

Allen & Overy conseille CIC Private Debt sur le financement PIK dans le cadre de l’acquisition du groupe Syclef par Ardian

News: 26 APRIL 2021

Allen & Overy Paris poursuit sa croissance en cooptant 4 nouveaux counsels

Susan Ekrami (Droit Social), Paul Fortin (Contentieux), Caroline Marion (Banque et Finance) et Arthur Sauzay (Droit Public et Droit de l’Environnement) ont été promus counsels au sein du bureau…

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Publications: 19 NOVEMBER 2020

La cour de justice de l’UE confirme que le cannabidiol n’est pas un stupéfiant et qu’un Etat membre ne peut en interdire la commercialisation

Aujourd'hui, le 19 novembre 2020, la Cour de justice de l'Union européenne (CJUE) a rendu sa décision très attendue dans l'affaire C-663/18 (Kanavape) jugeant qu’un Etat membre ne peut interdire la…

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Publications: 12 MAY 2020

Covid-19 coronavirus: France - Responsabilité pénale de l'entreprise et de son dirigeant en cas de contamination d'un salarié sur son lieu de travail

Alors que la crise sanitaire liée au Covid-19 se poursuit, de nombreuses entreprises s'apprêtent à reprendre leur activité dès le 11 mai 2020. Dirigeants et mandataires sociaux s'interrogent sur les…

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Awards and achievements

  1. Tier One, Public International Law, Legal 500 UK 2019
  2. Band 1, Dispute Resolution, Global-wide, Chambers Global 2019
  3. International Arbitration Firm of the Year, Benchmark Litigation Asia-Pacific Awards 2019
  4. Best Arbitration Team of the Year in Spain and Portugal, 2019 
 

Distinction

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International Arbitration Review

Recent developments and emerging trends in international arbitration law and policy