Impunity Watch is an international non-profit organisation, seeking to promote accountability for past atrocities in countries emerging from a violent past.
About us > Who We Are > Staff

Marlies Stappers, Executive Director

Marlies Stappers is founder and Executive Director of Impunity Watch. As director Ms. Stappers has been deeply involved in research and policy work related to the fields of: human rights, transitional justice, impunity reduction, and strengthening the role of civil society, and particularly victims and affected communities in countries such as Guatemala and Honduras, Burundi, the Great Lakes region, the Western Balkans and Cambodia.  Ms. Stappers is also the initiator of the Dutch Guatemala Platform against Impunity, today the International Platform against Impunity in Central America, of which she coordinates the Dutch branch. The International Platform is a group of dedicated NGOs from The Netherlands, Sweden and Switzerland, coordinating with partner organisations in Guatemala, Honduras, El Salvador and Nicaragua the international advocacy and lobby to promote effective measures combating impunity in Central America. Between 1995 and 2001 Ms. Stappers worked in Guatemala where she amongst others worked as a researcher for the Guatemalan Historical Truth Commission and as an observer of the Peace Accords for the UN Mission in Guatemala (Minugua). Her educational background is in Latin America Studies. Check also her Linkedin profile.

Habib Nassar, Director of Policy and Research

Habib Nassar is a lawyer and activist with more than fifteen years of experience working on human rights and transitional justice issues. Befor joining Impunity Watch,  he worked at PILnet: The Global Netwrok for Public Interest Law where he served as Acting Executive Director and Director for the Middle East and North Africa, a region where he developed the organisation’s programming in the area of strategic litigation and clinical legal education. Prior to PILnet, he developed extensive experience working on transitional justice in a variety of contexts. He advised the UN OHCHR on transitional justice in North Africa. He also worked at the International Center for Transitional Justice where he held several positions including Director of the Middle East and North Africa Program in the wake of the “Arab Spring”. Before, he worked for several grassroots and international human rights groups on matters including inforced disappearance, human rights defenders, and elections. He has taught transitional justice as well as human rights at Hunter College in New York. He has an LL.M. from New York University, a master ofinternational law from Université Paris II and a law degree from Université Saint-Joseph in Beirut. For more information see his Linkedin profile.

Margaretha Bakker, Operations Manager

Margaretha joined Impunity Watch in 2011. Prior to joining Impunity Watch she was working for Women for Water Partnership, UN FAO in Zambia and IWMI in Sri Lanka. She has been working with local organisations, ministries and international research organisations in the field of natural resources management and food security from a rights based perspective. She is an all-round, hands-on professional, with a heart for a society of equal rights, opportunities & participation. Alongside her work she is board member of a local organisation which is striving for participation, integration & participation of (vulnerable) people in society. In addition, she is also member of an advisory body of the city council on how best local participation can be guaranteed when designing and implementing policy at the local level. Her educational background is in international development studies. Check also her LinkedIn profile.

Thomas Unger, Strategic Advisor

Thomas Unger started working for Impunity Watch in 2016 and is also a researcher on transitional justice at the Geneva Academy and Co-Director of the Master of Advanced Studies in Transitional Justice, Human Rights and the Rule of Law. He is the former Senior Adviser to the UN Special Rapporteur on the promotion of truth, justice, reparation and guarantees of non-recurrence. With more than 15 years of expertise in the field of transitional justice, he was previously a legal adviser on human rights and international humanitarian law to the Austrian Foreign Ministry, and a senior associate of the International Center for Transitional Justice (ICTJ). He also worked as a legal system monitor with the OSCE Mission in Kosovo, and as a legal clerk with the Office of the Prosecutor of the International Criminal Tribunal for the former Yugoslavia (ICTY). Thomas Unger holds a degree in Law from the University of Vienna, an LLM in International Legal Studies from New York University School of Law and a Master’s in Human Rights and Democratisation from the European Inter-University Centre for Human Rights and Democratisation (Venice). For more information see his Linkedin profile.




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Observatorio de Independencia Judicial

The Observatory of Judicial Independence is a tool to monitor and analyse the internal and external factors that threaten judicial independence in Guatemala.



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