The DSU (Directorate of Special Units) was created in 2001 after the transformation of the Belgian FS with the unification of the Communal Police, the Gendarmerie and the Judicial Police.
The DSU belongs to the Belgian Federal Police (in Belgium there are two structures, one federal and one local) there are 430 operators are stationed at the police station Etterbeek with cavalry units and general reserve.
They are under the control of the Minister of Interior, but in certain circumstances the command is assumed by the Minister of Justice formerly commanded them to 1994 the Minister of Defense.
There are four DSUs decentralized in Antwerp, Ghent, Charleroi and Liege, called POSA (Protection, Observation, Support and Apprehension).
The weaponry used among others is the Glock 17 pistol, submachine guns MP-5, FN P-90 5.7mm, the .12 Remington 870 shotguns; Accuracy International sniper rifles Artic Warfare; HK 69 grenade launcher 40mm FN 303 launcher and non-lethal loads.
After the slaughter of Munich Diana Group it was created in 1974 the name was changed by SIE / ESI (Speciaal interventie Eskadron / squadron Special dÍntervention) and finally in 2.001 the DSU was created.