 Commanded by police commissioner Célestin Hennion, the mobile brigades were to handle special operations of the judicial police related to counter-espionage.In February 1907, the Deuxième Bureau was reactivated and was reassigned some of the contre-espionnage responsibilities it had had prior to the Dreyfus affair.Commanded by General Charles-Joseph Dupont, the Deuxième Bureau worked with the Interior Ministry, and especially Commissioner Hennion's mobile counter-espionage brigades, which worked closely with France's border patrols.