Chief of the Bonnot gang , Jules Bonnot , run to earth in a garage at Choisy-le Roi , 6 miles from Paris where he was besieged by Republican guards for five hours before they blew up the garage . 28th April 1912 . During the siege of the garage sheltering Bonnot , the motor bandit : detectives under cover of trees . The Bonnot Gang was a French criminal anarchist group that operated in France and Belgium during the Belle 夗oque, from 1911 to 1912. Comprised of individuals who identified with the emerging illegalist milieu, the gang utilized cutting-edge technology (including automobiles and repeating rifles) not yet available to the French police.