(158) If personal data are processed for archival purposes, this Regulation should also apply to such processing; however, it should be borne in mind that this Regulation should not apply to personal data of deceased persons. Public authorities or entities or private entities holding alerts of public interest should, in accordance with Union or Member State law, have a legal obligation to acquire, protect, evaluate, systematize, describe, transmit, promote, disseminate and make available alerts of permanent value to the general public interest. Member states should also be able to authorize the further processing of personal data for archival purposes, for example, with a view to providing specific information about political attitudes in former totalitarian state systems, cases of genocide, crimes against humanity (especially the Holocaust) or war crimes.