1. Each Member State shall apply the national provisions it adopts pursuant to this Directive to the processing of personal data where:
(a) the processing is carried out in the context of the activities of an establishment of the controller on the territory of the Member State; when the same controller is established on the territory of several Member States, he must take the necessary measures to ensure that each of these establishments complies with the obligations laid down by the national law applicable;
(b) the controller is not established on the Member State's territory, but in a place where its national law applies by virtue of international public law;
(c) the controller is not established on Community territory and, for purposes of processing personal data makes use of equipment, automated or otherwise, situated on the territory of the said Member State, unless such equipment is used only for purposes of transit through the territory of the Community.
2. In the circumsta