On 20 July 2011 , Serbia 's last war crimes fugitive was arrested .
The United Nations Security Council called upon the Tribunal to finish its work by 31 December 2014 to prepare for its closure and transfer of its responsibilities to the International Residual Mechanism for Criminal Tribunals which will begin functioning for the ICTY branch on 1 July 2013.Hadžić became the last of 161 indicted fugitives to be arrested after Serbian President Boris Tadic announced his arrest on 20 July , 2011.