On the 14th of August 1789 the Constituent Assembly made Camus its archivist, and in that capacity he organized the national archives, classified the papers of the different assemblies of the Revolution and drew up analytical tables of the procesverbaux.
Richemont caused the assassination of Charles's favourites Pierre de Giac and Le Camus de Beaulieu, and imposed one of his own choosing, Georges de la Tremoille, an adventurer who rapidly usurped the constable's power.
The second and third, addressed respectively to a cardinal (Perraud) and a bishop (Le Camus), are polemical or ironical in tone; the others are all written to friends in a warm, expansive mood; the fourth letter especially, appropriated to Mgr Mignot, attains a grand elevation of thought and depth of mystical conviction.