Direction de La Surveillance Du Territoire

The Direction de la Surveillance du Territoire (DST) (Directorate of Territorial Surveillance) was a directorate of the French National Police operating as a domestic intelligence agency. It was responsible for counterespionage, counterterrorism and more generally the security of France against foreign threats and interference. It was created in 1944 with its headquarters situated at 7 rue Nélaton in Paris. On 1 July 2008, it was merged with the Direction centrale des renseignements généraux into the new Direction centrale du renseignement intérieur.

The DST Economic Security and Protection of National Assets department had units in the 22 regions of France to protect French technology. It operated for 20 years, not only on behalf of defense industry leaders, but also for pharmaceuticals, telecoms, the automobile industry, and all manufacturing and service sectors.