Department profile
Withers

Public International Law

Global Guide 2026 : Global Market Leaders

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Withers

Rankings

Chambers Review

Provided by Chambers

Public International Law - Global Market Leaders

Band 4

What the Team is Known For

Withers is active on a broad array of matters concerning public international law, coordinated between offices based in the UK and USA. The PIL team provides global expertise drawing on its often dual-qualified lawyers, covering UK, US, Italian and Australian legal jurisdictions. The law firm offers:

• Notable strength in state-versus-state disputes concerning the Law of the Sea, sovereign responsibility and sanctions, as well as those concerning human rights violations.

• Regular representation of state governments, international organisations and not-for-profit outfits.

• Vast experience handling PIL matters across Europe, Asia and the Middle East.

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Strengths

Provided by Chambers

  • The team demonstrates a rare ability to combine legal rigor with a deep understanding of operational and institutional context.

    Public International Law respondentGlobal

  • Withers stand out for their depth of knowledge, breadth of experience and an abundance of common sense. They unravel and simplify highly complex issues.

    Public International Law respondentGlobal

  • The team is more than capable of handling complex and sophisticated matters.

    Public International Law respondentGlobal

Notable Practitioners

Provided by Chambers

  • Floriane Lavaud
    Floriane Lavaud

    Floriane Lavaud

    Floriane Lavaud is based in New York and is experienced advising across a range of international disputes and conflicts. She often represents global investors, sovereign states and international organisations across a range of public international law matters, including issues surrounding the law of the sea, maritime law, international human rights law and international humanitarian law.

    • Floriane has a strong commitment to human rights and the international rule of law.

      Public International Law respondentGlobal

    • Floriane Lavaud provides superior client service, a deep level of sophistication and expert commercial awareness on all our legal matters.

      Public International Law respondentGlobal

    • Floriane is brilliant, strategic, pragmatic and a very strong thought partner.

      Public International Law respondentGlobal
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  • Hussein Haeri
    Hussein Haeri

    Hussein Haeri

    Hussein Haeri KC heads the firm's public international law group and also co-heads the Middle East and North Africa Special interest group. His broad practice sees him advising sovereign states and multinational corporations across a range of contemporary issues of international law. Haeri is dual-qualified and possesses linguistic capabilities in French and English.

    • Hussein is a first-class lawyer.

      Public International Law respondentGlobal

    • Hussein Haeri is a real expert.

      Public International Law respondentGlobal

    • Hussein Haeri is an excellent lawyer. He has very good advocacy in court and in negotiations, and has a keen commercial sense.

      Public International Law respondentGlobal
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Ranked Individuals at Withers (2)

Global Market Leaders

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