 Tulard was head of the Service of Foreigners and Jewish Affairs at the Prefecture of Police of Paris.Although Tullard was an active collaborator with the Germans he received no punishment after the war, and even retained his title as "Chevalier" (Knight) of the Légion d'Honneur.Tulard created the first files, censusing members of the French Communist Party (PCF), for the Prefecture of Police under the Third Republic (1871–1940).