The Special Anti-Terrorist Unit (Serbian: Специјална антитерористичка јединица, romanized: Specijalna antiteroristička jedinica, abbr. САЈ / SAJ), is an elite tactical unit of the Serbian Police.^[2][3][4]

The history of the Special Anti-Terrorist Unit dates back to 18 December 1978 and the establishment of the Militia Unit for Special Actions (Jedinica Milicije za specijalna dejstva).^[3] The first base for the Milicija unit was at the militia station in New Belgrade.^[3] Its first commander was Miloš Bujenović.^[3] In 1983, the unit moved to Belgrade Airport in Surčin.^[3] In 1991, the unit renamed as the Anti-Terrorism Unit (Antiteroristička jedinica).^[3] In 1992, during the reorganization of the Ministry of Internal Affairs and the Militia, the Anti-Terrorism Unit was placed under the Directorate of Public Security of the reorganized ministry.^[3] That same year, command was formed in Belgrade, with established branches in Novi Sad and Priština. Zoran Simović was the head of the then Belgrade unit, Novi Sad branch-unit was led by Branko Jurčić, and Priština branch-unit by Radoslav Stalević. At that period, the unit moved to the base in Batajnica, in which it has been ever since.^[5] In 1994, the unit was renamed as the Special Anti-Terrorist Unit, which it bears to the current day.^[3] During the Kosovo War, the unit operated on the suppression of militants of the KLA. During these operations, sixteen members of the unit died in combat.^[6] In 2015, the Counter-Terrorist Unit (established in 2003) was merged into the Special Anti-Terrorist Unit.^[7][8]

Among the main missions of the Special Anti-Terrorist Unit are:

• Counter-terrorism
• Hostage recovery situations
• Assistance to other police departments fighting organized crime (arrest of high-profile criminals)
• Arrest of dangerous deranged persons
• Close protection of VIP

The Special Anti-Terrorist Unit is organized in four "teams" (timovi), platoon-size units, each with their own specializations.

Team A and Team B

The "first fist" is represented by that air assault operations, anti-hijacking, anti-irregular forces, breaking into barred objects, control and protect criminals while they are on trial, counterterrorism, hostage rescue, operating in difficult to access terrains, providing security to locations at high-risk of sabotage or being disturbed by social turmoil, serving high-risk arrest and search warrants, solve complicated hostile situations, special operations in dangerous areas, support crowd control operations during court proceedings or meetings, and VIP close protection.

Team C

Team C include: Dog training Group, Mine-explosive Substances and Biological-Chemical Products Group, Sniper/Counter-sniper Group, and Diving and Underwater Operations Group.

Team D

Team D provides the logistical support and include: the Construction and Testing of Arms and Ammunition Group, the Technical and Emergency Service Group, and the Medical Group.

The following equipment is in operational use as of 2024:

Since its establishment the Special Anti-Terrorist Unit had six commanders:

• Col. Miloš Bujenović (1978-1984)
• Col. Radovan Stojičić "Badža" (1984-1991)
• Col. Miodrag Tepavčević (1991-1992)
• Col. Zoran Simović (1992-2000)
• Col. Živorad Trajković (2000-2002)
• Col. Milovan Glišović (2002-2005)
• Col. Spasoje Vulević (2005–present)

The Special Anti-Terrorist Unit appears in a video games Call of Duty: Modern Warfare (2019 video game) and Call of Duty: Mobile.

• Police of Serbia
• Special forces of Serbia