Case C-275/06 (Promusicae/Telefonica de Espana) deals with the question whether internet access providers (here: Telefonica) are under an obligation to reveal personal data on their users to a private party (Promusicae) in order to enable the latter to bring civil law charges against these users for the infringement of intellectual property rights (here: filesharing of audiovisual files). Under Spanish law internet access providers are merely obliged to reveal the requested data to state authorities for the purpose of criminal law. The Spanish court wanted to know whether this restriction is in conformity with EU law.