Marwan’s experience extends beyond Canada’s borders. He has appeared as a Visiting Professional at the International Criminal Court in The Hague and is admitted to act for both suspects and victims before international tribunals, including the Special Tribunal for Lebanon and the Kosovo Specialist Chambers. He also serves as pro bono counsel before the UN Ombudsperson in delisting matters under the ISIL (Da’esh) and Al-Qaida sanctions regime. He assists the Office of the Ombudsperson and the Security Council at the UN in their mission to counter terrorism. His international work reflects a lifelong commitment to accountability, due process, and justice on a global scale.
2018–Present – Counsel for victims and suspects admitted to practice before the International Criminal Court, providing representation in international criminal and human rights proceedings (International Criminal Court).
2018–2019 – Visiting Professional with the Registry of the International Criminal Court, working within the institutional framework of the Court on international criminal and human rights–related matters (International Criminal Court).
2020 – Appointed Judicial Legal Officer to the Special Tribunal for Lebanon; appointment aborted prior to commencement (Special Tribunal for Lebanon).
2015–2017 – Counsel for vulnerable refugees and victims of war crimes, advancing humanitarian, human rights, and dignity-based arguments in proceedings involving detention, psychiatric committal, fitness to stand trial, and proportionality of state response (Ontario Court of Justice & Superior Court of Justice).
2010–2011 – Counsel in extradition proceedings involving cross-border human rights considerations, including submissions on duress, proportionality, and the humanitarian impact of extradition to face U.S. federal prosecution (Canada–United States extradition proceedings).