L’accés of the town councilors to data of the municipal Census d’habitants without consent of the headlines can be skill in determinate suppositions, to the fulfillment of its functions (LRBRL). It does not seem that l’accés for l’enviament of own documentation d’un political party s’hagi of considering included in the legitimate purpose for which a town councilor can access in the Census, to the effects of the principle of purpose (article 4 LOPD). L’accés on the part of the town councilors to the data of the Census (name and address) for the purpose brought up would require of the consent of the headlines of the data. The possibility of his being the Town Council itself the that political party sends to determinate neighbors of the town a documentation that is related, by the information of which it is ordered, to the activities d’un and that therefore is foreign to the activities of the Corporation itself, it requires the consent of the headlines of the data.