الشاذلي بن جديد
The first appointed Chairman of Military Security was the colonel Kasdi Merbah who stayed until the death of president Boumédiène in 1978. Then he was succeeded for a short time by colonel Yazid Zerhouni. President Chadli Bendjedid, who mistrusted the SM, dismantled it and renamed it the DGPS. Chadli appointed to the chair of the DGPS general Lakehal Ayat, reorganising the agency to work solely in foreign intelligence.