Back in Paris, on Ventose, 15, year III (March 5, 1795), Calès was elected member of the Committee of General Security, a committee previously designed to protect the Revolutionary Republic from its internal enemies. He was re-elected a second time on August 2, 1795. During the historic session of the Assembly on 14 Vendemiaire (October 6, 1795), under the applause of his colleagues, he came to announce that he just had, "at the head of the armed force", proceeded to the evacuation and closing of the hall where the electors of the section of the Théâtre-Français were meeting to protest against the decrees of the Convention and to organize the royalist insurrection of the 13th Vendémiaire year IV (October 5, 1795), which had started the day before. This coup against the Convention and the young Republic will be repressed in blood by the commander of the troops of Paris Paul Barras and the young general Napoléon Bonaparte.