He was one of the thirteen initiators of the re-establishment of the Democratic Party in Serbia on 11 December 1989.

[3] Kosta Čavoški had been a dissident since the 1970s when as an assistant law professor at University of Belgrade in 1973 he published an article critical of the communist system entitled "Which values are protected by our laws?".

In 1990 he was readmitted to the Law School as a full-time professor, and at the beginning of 1996 the President of Bosnia's Republika Srpska Radovan Karadžić appointed him a Senator of the entity.

[4] On 23 February 2007, Čavoški was briefly questioned by the police in Republika Srpska after visiting the family of Radovan Karadžić, a fugitive accused of war crimes in Bosnia and Herzegovina during the Bosnian War.

[5] In June 2008 he was declared persona non grata by Bosnia-Herzegovina because of his connections, and he was banned from entering the country again.