Sonja Biserko was a member of UN Human Rights Investigation into North Korea and is the founder member of Helsinki Committee for Human Rights in Serbia. HCHRS a member of the European network of Helsinki Committees for Human Rights and formerly part of the dissolved International Helsinki Federation for Human Rights, a professional organisation working to promote the rule of law and protection of human rights in Serbia, challenging nationalist dogma, documenting war crimes and acting as advocate for the victimised and disenfranchised. Biserko served as a diplomat for the former Yugoslavia in London and at the United
Nations in Geneva for over 20 years until 1991 when she resigned her diplomatic position in protest over the policies of Slobodan Milošević amid rising nationalism throughout Yugoslavia.
She has written extensively on the wars in the former Yugoslavia and war crimes including on the Srebrenica genocide, the fall of Vukovar, and accounts of the trials of Slobodan Milosevic and Vojislav Seselj. She is also the founding member of the Centre for Anti-War Action in the Belgrade Forum for International Relations and a senior fellow in the United States Institute of Peace.
Biserko’s ongoing work for human rights has included documenting the resurgence of nationalist sentiment that followed the war in Kosovo, the continuing threats to minorities, attempts to falsify or deny the historical record and efforts to undermine multi-ethnic society in the former Yugoslavia. Through active support for minority and refugee communities within Serbia and Kosovo she has sought in particular to promote dialogue between Serbs and Albanians in Kosovo.