One of the main roles of the SAC, although not well known, was the internal surveillance of the Gaullist party. The departmental responsible of the SAC was a "de jure" member of the departmental committee of the Union des Démocrates pour la République (UNR), then of the Union des Démocrates pour la République (UDR) and Rally for the Republic (RPR) (successive incarnations of the Gaullist party), even though he was often not an adherent of the Gaullist party. It is through this tight network covering France that Jacques Foccart was very well informed. On many times, the notes communicated to Pierre Debizet by his departmental responsibles permitted to push out of the Gaullist party elected (or not) officials of the party suspected of some illegal activities, before having the French justice take care of it.