The position of the French police was complicated by the sovereignty of the Vichy government, which nominally administered France while accepting occupation of the north. Although in practice the Germans ran the north and had a strong and later total domination in the south, the formal position was that France and the Germans were separate. The position of Vichy and its leader, Philippe Pétain, was recognised throughout the war by many foreign governments.
The independence, however fictional, had to be preserved. German interference in internal policing, says the historian Julian T. Jackson, "would further erode that sovereignty which Vichy was so committed to preserving. This could only be avoided by reassuring Germany that the French would carry out the necessary measures."