1. Personal data must be:
(a) processed fairly and lawfully;
(b) collected for specified, explicit and legitimate purposes and not further processed in a way incompatible with those purposes. Further processing of personal data for historical, statistical or scientific purposes shall not be considered incompatible provided that the controller provides appropriate safeguards, in particular to ensure that the data are not processed for any other purposes or used in support of measures or decisions regarding any particular individual;
(c) adequate, relevant and not excessive in relation to the purposes for which they are collected and/or further processed;
(d) accurate and, where necessary, kept up to date; every reasonable step must be taken to ensure that data which are inaccurate or incomplete, having regard to the purposes for which they were collected or for which they are further processed, are erased or rectified;
(e) kept in a form which permits identification of data subject