The democratization of public policies is, without doubt, the stake for local government. Do we want the inhabitants of inner cities to participate in local government? A postulate guides this argument: democracy can not be decreed in public policies. First, it is a social experience which leads the local actors to the confronted with their contradictions in between strategies, ideology and subjectivity. This article shows that the local actors are taken in local political systems, in a more or less voluntary way, and create the expulsion of the local political system of inner cities inhabitants. The expulsion is built through public meetings during which the linguistics exchanges strongly reinforce the political expulsion of the poorest.