Adv Ruzin Dagli > Withers LLP > London, England > Lawyer Profile

Withers LLP
20 Old Bailey

Living Wage

Work Department

Litigation and arbitration


As a dual-qualified lawyer (Turkey and England & Wales) who has previously practised in Paris and Istanbul, Ruzin has particular expertise in international arbitration, commercial litigation and both private and public international law.

In her international arbitration practice, Ruzin represents individuals, companies, States and State-owned entities in international disputes conducted under the LCIA, ICC, DIAC, SCC, UNCITRAL and ICSID rules across a variety of sectors, including construction, energy, infrastructure, technology, pharmaceuticals and textiles. Ruzin also advises States and international organisations on public international law matters such as the application of treaties, dispute resolution issues relating to international trade and investment, human rights and sovereign immunity.

In her commercial litigation practice, Ruzin advises both individuals and companies in matters before the English High Court, including in complex shareholder disputes, disputes involving family businesses, debt collection and insolvency issues and litigation ancillary to arbitration proceedings, such as the enforcement of arbitral awards. Ruzin has appeared before the Turkish courts as an advocate in a range of commercial disputes and enforcement actions.

Ruzin also maintains a pro-bono practice, advising individuals and international organisations on issues of international human rights law and international environmental law.

Ruzin is recognised as a leading lawyer in Who’s Who Legal, Legal 500 and is listed in the Legal 500 Arbitration Powerlist. She was highlighted by Who’s Who Legal’s Future Leaders in Arbitration, Legal Marketplace Analysis as part of a selection of particularly highly regarded individuals. Within this directory, international sources describe Ruzin as “an excellent lawyer who is thorough and invisive” and “very personable, organised and efficient”.


Senior Associate


English, French, Turkish


  • Istanbul Bar Association
  • American Society of International Law (ASIL)
  • ASIL, Investor-State Dispute Settlement Reforms Working Group
  • British Turkish Lawyers Association
  • British Chamber of Commerce, Turkey
  • London Court of International Arbitration

Lawyer Rankings

London > Dispute resolution > International arbitration

Withers LLP‘s ‘fantastic team of very capable international lawyers‘ consistently handles international arbitrations involving Africa, the Middle East and Asia, as well as Russia and CIS countries. Hussein Haeri is ‘very knowledgeable about international arbitration‘, while Eleni Polycarpou acts in international arbitration proceedings under a range of arbitration rules. Tatiana Menshenina is experienced in disputes involving Russia, Ukraine and the CIS; Peter Wood is dispute resolution head; Roberto Moruzzi acts in commercial arbitrations; and Geoffrey Cox KC is the firm’s consultant global counsel. Other key names are special counsel Robert Kovacs, and senior associates Camilla Gambarini and Ruzin Dagli.

London > Dispute resolution > Public international law

In addition to strong investment treaty arbitration credentials, Withers LLP‘s PIL practice is highly experienced in state-state work. The team also advises individuals and businesses on PIL matters, and is additionally active in relation to international human rights litigation, state immunities, enforcement work, and sanctions. PIL group leader Hussein Haeri routinely advises on sovereign immunity issues arising out of the enforcement of judgments and awards against states, as well as on international sanctions; and consultant global counsel Sir Geoffrey Cox KC (the former Attorney General of England and Wales) maintains a broad PIL practice. Also integral to the team, consultant Aniruddha Rajput‘s workload covers general international law, international trade, investor-state arbitration, boundary disputes, and the Law Of The Sea. At special counsel level, Robert Kovacs specialises in PIL issues, international arbitration, and business and human rights; while Camilla Gambarini and Ruzin Dagli are experienced senior associates.