[1] In this role, Thapa interviewed survivors and perpetrators of gender-based violence, contributing to a report for the UN Commission on Human Rights.
[1][2] Thapa then worked for the International Criminal Tribunal for the former Yugoslavia, based in The Hague, leading a unit that investigated and documented abuses that occurred in the Yugoslav wars.
[2] Thapa was also recognized for her role in building a case against Slobdan Milosevic, the former president of Yugoslavia and Serbia, who was tried on charges of genocide and crimes against humanity.
[1][3] She documented sexual violence and other human rights violations that occurred during the civil wars in Sri Lanka and Nepal, as well as in Bangladesh.
[2] In 2017, Thapa documented the Myanmar military’s ethnic cleansing of Rohingya Muslims along the Bangladesh-Myanmar border, one of the first human rights workers to do so.