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TheSecurity Information Service (BIS,Czech:Bezpečnostní informační služba) is the primary domestic nationalintelligence agency of theCzech Republic.[3] It is responsible for collecting, analyzing, reporting and disseminating intelligence on threats to Czech Republic'snational security, and conducting operations,covert and overt, both domestically and abroad. It also reports to and advises theGovernment of the Czech Republic on national security issues and situations that threaten the security of the nation.
The BIS is a statutory body under theAct No. 154/1994 Coll., on the Security Information Service and it is strictlyapolitical and has limited police powers; BIS can detain, arrest or interrogate suspects only as part of its internal oversight.[5] The service reports to theGovernment,Prime Minister andPresident of the Czech Republic and its activities are regulated and overseen by the Government, Permanent Commission of theChamber of Deputies and its own internal audit.[6] The service is headed by the Director who is appointed by thePrime Minister with consent of the Committee on Security of the Chamber of Deputies.[7]
In 2014, two explosions occurred at ammunition depots in Vrbětice, Czech Republic—the first on October 16 and the second on December 3—resulting in two fatalities and extensive damage. Subsequent investigations by Czech authorities revealed that agents from Russia'sGRU Unit 29155 were involved, allegedly aiming to disrupt weapons supplies to Ukraine. The cleanup of unexploded ordnance concluded in October 2020.[10][11][12]
In March 2025, revelation by Czech intelligence services of a covert Russian operation involving Belarusian journalistNatalia Sudliankova, identified as a key collaborator for Russia’s military intelligence agency, theGRU. Active in the Czech Republic since 1999, Sudliankova allegedly published GRU-directed content, collaborated with pro-Kremlin organizations, and received crypto payments for espionage-related activities. Her expulsion, along with sanctions against her and GRU officer Alexey Shavrov, marked a major escalation in Czech efforts to counter Russian influence, highlighting the persistent threat of foreign intelligence operations in Europe.[13][14]
