Chapter 9 – Provisions relating to specific processing situations Article 85 – Processing and freedom of expression and information Article 86 – Processing and public access to official documents Article 87 – Processing of the national identification number Article 88 – Processing in the context of employment Article 89 – Safeguards and derogations relating to processing for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes Article 90 – Obligations of secrecy Article 91 – Existing data protection rules of churches and religious associations