Zoran ŽivkovićNataša MićićČedomir JovanovićVladan Batić Milorad UlemekFranko SimatovićDušan Spasojević †Zvezdan Jovanović Belgrade gangs: Outside the Balkans: Operation Sabre (Serbian: Операција Сабља, romanized: Operacija Sablja) was a Serbian police operation in 2003 to find and arrest those responsible for the assassination of Serbian Prime Minister Zoran Đinđić, as well as other persons who were suspected to have connections to organized crime groups.

[2] The primary goal of the action in Operation Sabre was to find the assassins of Đinđić, but the investigation expanded to other persons who were suspected to have connections to organized crime groups.

[3] In the course of Operation Sabre, the police claimed to solve several other high-profile crimes which had been unresolved for years, including the assassination of former Serbian President, Ivan Stambolić.

[4] Milan Sarajlić, the Deputy State Prosecutor of Serbia, was arrested and confessed to being on the payroll of the Zemun clan.

Some organisations disagree, notably Human Rights Watch, which was critical of detention in isolation and interrogation without a lawyer being present,[6][7] and Amnesty International, which alleged ill-treatment and torture.