Bassal was named with Jacques Garnier de Saintes on the first mission in the Jura, the Ain, the Côte d'Or and Doubs by decree of 18 June 1793, to quell unrest and purify the authorities. His action in Doubs reflected the broader problems of federalism and the revolutionary agenda: as late as May 1793, neither of the two blocs of the Jacobin clubs in Doubs had identified their interests clearly with a Parisian faction. Once Bassal and his colleague Garnier arrived in Benscaon, they influenced one of the clubs to declare itself aligned with the Parisian Jacobins, "for the Mountain," as the saying went, and acquired the mantle of power. This process repeated itself in the Jura, the Ain, and the Côte d'Or. Upon his return, he was elected secretary of the meeting. Then he was sent with Charles-Jean-Marie Alquier, Bernard de Saintes and Jacques Reverchon, mission Ain, Jura, Côte d'Or, the Mont-Terrible and Haute-Saône by decree of 17 August 1793, to quell the royalist uprisings there and to secure the borders with Switzerland and German states.