

Legal Officer and Case Manager
Lawyer and Counsel at the ICC
Jeanne Sulzer is a lawyer at the Paris bar. Specialist in issues of international criminal justice, human rights and the fight against terrorism, she has worked for more than 20 years alongside victims of international crimes by advising, assisting or representing them in their quest for truth and justice before the courts in national, regional and international jurisdictions including the International Criminal Court. Jeanne also teaches at multiple universities including Sciences Po, Paris and Paris II. She is the head of the International Justice Commission of Amnesty International France.
Working languages: French and English
Jeanne Sulzer


Elise Lauriot Prévost
Legal Officer and Case Manager
Elise Lauriot Prévost is a Legal Officer at Impact Litigation. She is trained in restorative justice by the French Institute of Restorative Justice in partnership with France Victimes. She teaches “Justice Pénale Internationale” at Université Paris 13. She graduated from Sciences Po Paris with a Master II in Human Rights and Humanitarian Action, from Paris VIII with a Master I in Private Law and from King's College London with a BA (Hons) in International Relations. She has previously worked in international organisations and NGOs. She is a member of the International Justice Commission of Amnesty International France.
Working languages: French and English


Zazie Steedman
Legal intern
Zazie Steedman is a Legal Intern at Impact Litigation. She is currently in the second year of her Masters in Human Rights and Humanitarian Action at Sciences Po Paris. Zazie holds an undergraduate degree in law from Université Paris 1 Panthéon-Sorbonne (France) with a semester abroad at McGill University Law School (Canada). She previously worked for law clinics and NGOs, such as Anticor and Amnesty International Canada.
Working languages: French and English


Nicolas Stevens
Legal Intern
Nicolas Stevens is an intern at Impact Litigation. He recently graduated from Panthéon Assas University with a Master II in Human Rights and Humanitarian Law. He previously worked as an intern in multiple law firms specialized in international criminal law, as well as the National anti-terrorism prosecutor's office.
Working languages: French and English



Chavanne & Witt is a Paris-based law firm specialized in complex criminal cases, including terrorism, extradition and international criminal law.
Law firm
Chavanne & Witt

Working languages: French, English and Spanish.

Héleyn Uñac
Of counsel
Héleyn Uñac has over 20 years’ experience working in international human rights law and international criminal justice. She is the Founder of Human Rights Vigilance, a Hague-based law firm which provides advanced legal and strategic advice on the protection, respect, and promotion of human rights and the rule of law, including business and human rights standards. She is on the List of Counsel of the International Criminal Court and the President of the International Criminal Defence Commission of the InternationalAssociation of Lawyers (UIA).