In April 1793, he was sent as représentant en mission to the Army of the Ardennes, but he was not able to get along with his three colleagues Deville, Hentz and Milhaud. He was then sent on a new mission with Jacques Reverchon to put down the Revolt of Lyon against the National Convention. After the city surrendered, he reported the judgements of the Revolutionary Tribunal to the Convention, but left the task of repression to Jean-Marie Collot d'Herbois and Joseph Fouché. He was then sent to the Army of the Alps in Nice.