Article 4 – Principles relating to processing of personal data

collected for specified, explicit and legitimate purposes and not further processed in a manner that is incompatible with those purposes; further processing for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes shall, subject to the application of appropriate safeguards in accordance with Article 13, be considered to be compatible with the initial purposes, independent of the conditions of Article 6 of this Regulation, (‘purpose limitation’);