Federal Office for the Protection of the Constitution

The Federal Office for the Protection of the Constitution (German: Bundesamt für Verfassungsschutz or BfV, often Bundesverfassungsschutz) is Germany's federal domestic intelligence agency. Together with the Landesämter für Verfassungsschutz (LfV) at the state level, the federal agency is tasked with intelligence-gathering on efforts against the liberal democratic basic order, the existence and security of the federation or one of its states, and the peaceful coexistence of peoples; with counter-intelligence; and with protective security and counter-sabotage.

Source: Wikipedia — Federal Office for the Protection of the Constitution (CC BY-SA 4.0)