Dr Dennis Gratz was born in 1978 in Sarajevo. He graduated from the Law School of the University of Sarajevo in 2001 and recieved his MA degree in Democracy and Human Rights at the Center for Interdisciplinary Postgraduate Studies of the University of Sarajevo and Bologna in 2002. In 2003 he passed the bar examination and started to work as an attorney at law in Sarajevo, specializing in family law, copyright law and the law on media and freedom of press. In 2008-2009 he worked as a coordinator of the regulation work group with the DTT Forum of the Communications Regulatory Agency of B&H.
Dr. Gratz was awarded a PhD degree from the University of Hamburg, Faculty of Social Sciences. His thesis dealt with systematic war crimes committed during the war in Bosnia 1992-1995, with a specific focus on elimination of local elites (theory of elitocide).
Dr. Gratz published several scientific studies and essays on the topic of war crimes, constitutional issues, human rights protection and implementation, and was engaged as lecturer and panelist on many international and domestic scientific conferences and panels. He is currently lecturing as assistant professor at the Center for Interdisciplinary Postgraduate Studies of the University in Sarajevo and the Sarajevo School of Science and Technology. From 2009 to 2010, Dr. Gratz was admitted as a Fulbright visiting scholar at the Columbia University of the City of New York, conducting a postdoctoral research on sociology of genocide. In the winter semester 2010 he conducted a series of lectures on war crimes in the former Yugoslavia as a guest professor at the Institute for Peace Research and Security Studies with Hamburg University, Germany.
Dr. Gratz is the co-founder and current chairman of Naša stranka, a socio-liberal, multi-ethnic political party from Bosnia and Herzegovina. He was the candidate for the mayor of municipality Centar Sarajevo during the local elections of 2008. In the 2014 October elections he was elected directly a Member of Parliament of the Federation of Bosnia and Herzegovina.