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The team

Boutique law firm, William JULIÉ Avocats is made up of lawyers and legal experts practicing in several languages, as consultants and litigators.

The team’s skills are cross-disciplinary and complementary, enabling a global grasp of the most complex situations and the ability to intervene before all national, foreign and international jurisdictions.

Thanks to its 20 years’ experience in international litigation, the firm can guarantee its clients, be they natural persons, legal persons or institutions, its absolute availability as well as the highest quality of tailored support.

William Julié

Paris Bar

 Works in French and English

Specialized In


  • International Criminal Law Officer de l’International Bar Association (IBA) – International Criminal Law Officer
  • European Bar Association (ECBA)
  • Président de la Commission Pénale de l’Association des Avocats Conseils d’Entreprises (ACE)
  • Forum des Avocats Spécialistes de l’Extradition (DELF)
  • Association des Juristes Franco-Britanniques (LBLS)

Admitted to the Paris Bar in 2000, William JULIÉ is a Franco-British lawyer specialized in criminal defense and Human Rights Law.

After studying International Law at the University of Paris-Sorbonne (Paris I), William JULIÉ specialized in Criminal Law, obtaining a doctoral certification (Doctorat d’études approfondies) in European Criminal Justice Policy directed by Professor Mireille Delmas-Marty while also attending the Institute of Criminology at the University of Paris-Assas (Paris II).

His first years fine-tuning his skills as a criminal and fundamental rights lawyer were spent working alongside renowned professionals, amongst whom Maître Henri Leclerc (President of the Human Rights League).

He has a particular expertise in International Criminal Law and, more specifically, in extradition procedures, execution of international and European arrest warrants and the removal / lifting of INTERPOL red notices.

He regularly appears before foreign jurisdictions as legal expert in matters of Criminal Law and Human Rights.

Amélie BEAUCHEMIN is an attorney at the New York Bar and Paris Bar.

She holds a bilingual master’s degree in International and European Law from the University Paris-Ouest Nanterre La Défense and an LL.M in Human Rights and Humanitarian Law from the American University Washington College of Law, where she also teaches an introduction to International Criminal Law within the International Law program for Arabic speakers.

After working for the international co-prosecutor’s office in the Extraordinary Chambers in the Courts of Cambodia (ECCC), she collaborated with several Syrian NGOs, coordinating the work of the teams on the ground and co-teaching the principles of International Criminal Law and Crime Documentation to Syrian lawyers and activists.

Amélie Beauchemin

Paris Bar

New York Bar

Works in French and English

Specialized In


Works in English and Russian




Specialized In


Yuri SHUMILOV is an Of Counsel at WJ Avocats based in Brussels. He is a Russian advocate, a solicitor of England & Wales, a member of the Irish Bar and an associated member of the Brussels Bar.

He previously spent 15 years with a major ‘magic circle’ international law firm in its offices in Moscow and London, and was the General Counsel at a major Russian privately-held investment group.

His areas of expertise include international M&A, cross-border financings and sanctions. He regularly advises clients on matters relating to sanctions compliance, as well as sanctions litigation.

He holds an LL.M from University College London and a Ph.D in law from the Russian Peoples’ Friendship University.

He is fluent in Russian and English.

Juliette Fauvarque is a doctoral student and lecturer in private international law at the University of Paris Panthéon-Assas. She is also a qualified lawyer at the Paris Bar.

After specializing in French and Common Law with a Dual Degree at the University of Paris Panthéon-Assas and University College Dublin, she completed an LLM in International Criminal Law at the University of Amsterdam and Columbia University. She also holds a Master’s degree in General Private Law from the University of Paris Panthéon-Assas.

With several experiences in French law firms, including SCP Spinosi and Cabinet Temime, she occasionally brings her expertise to the firm in civil or criminal cases with a cross-border dimension.



Specialized In

Samantha Philippe

Paris Bar

Works in French and English

Specialized In

Samantha PHILIPPE has been practicing at the Paris Bar since 2018.

She has Masters’ Degrees in Internal and International Litigation and in Civil and Commercial Contract Law from the University of Paris-Descartes (Paris V), where she also taught fundamental law principles and Family Law.

She mainly works in Contract Law, General Criminal Law, Criminal Business Law and Family Law.

Pascaline MORELLO holds an LL.M in International Public Law from the University of Leiden and a master’s degree in European and International Law with a specialization in International Humanitarian Law. She has also received an extensive training in Common-Law at the University Paris-Ouest Nanterre la Défense.

After her LL.M in the Netherlands, she worked at the Prosecution Division of the Office of the Prosecutor at the Special Tribunal for Lebanon. She joined when the section was in the thick of its preparation for appealing acquittals in the Ayyash et al. Case.

After an internship with the Public Prosecutor at the Judicial Tribunal of Paris, she joined Wiliam JULIÉ Avocats as part of her school curriculum at the Ecole Française du Barreau.

Pascaline MORELLO

Works in French and English

Specialized In


Works in French and in English

Specialized In

Mathias LENGLET holds a master’s degree in Human Rights from the University of Strasbourg and a master’s degree in International Criminal Justice from the University of Paris II Panthéon-Assas. He has always been passionate about the legal mechanisms of European and international protection of Human Rights.

He worked as an asylum law intern in an NGO in Strasbourg after being a trainee at the Parliamentary Assembly of the Council of Europe (PACE), in the equality and non-discrimination committee. Having a great interest in international law, he has worked on many projects with the French Red Cross at the International Law Clinic of Assas.

As part of his current preparation for the entry exams to the Paris Bar, he joined William JULIÉ Avocats.

Camille GOSSON graduated with a Master 2 in International Criminal Justice and a Master 1 in Criminal Law and Criminal Sciences from the University of Paris-Panthéon-Assas. She also has a background in Common Law from the same university and an exchange year at McGill University.

After working with a defense lawyer in Montreal, she joined the International Law Clinic of Assas to work on the qualification of international crimes committed during the conflict in Tigray, Ethiopia.

Having been admitted to the Paris Bar in 2021, she joined the firm William JULIÉ Avocats for her final internship before joining the Ecole Française du Barreau in January 2023.

Camille GOSSON

Works in French and in English

Specialized In