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Since the 2014 invalidation of the Data Retention Directive, the EU legal landscape has become fragmented, causing uncertainty for providers and challenges for law enforcement. With a Commission proposal likely and growing Member State support for a more permBriefing - Mapping CJEU limits on data retention frameworks: A basic introduction - 16-07-2025
Since the 2014 invalidation of the Data Retention Directive, the EU legal landscape has become fragmented, causing uncertainty for providers and challenges for law enforcement. With a Commission proposal likely and growing Member State support for a more permissive EU regime, a solid understanding of relevant CJEU case law may help inform Parliament's assessment. Over the past decade, CJEU case law has set detailed requirements for data retention. Laws must respect proportionality and necessity, with a clear hierarchy of objectives: general and indiscriminate retention of traffic and location data is only permissible for safeguarding national security, while targeted retention of such data may be justified by public security or other important public interest goals. Any such framework must also include robust safeguards. Similarly, access to retained data must be limited to the purpose for which it was collected or a more important objective. The ECtHR ruled that such retention and access require safeguards similar to those for secret surveillance. Stakeholders are divided on a new EU data retention regime. Law enforcement agencies favour EU-level harmonisation but warn against restrictive retention rules that would limit their operational effectiveness. Providers of electronic communications services support a CJEU-compliant EU framework and seek cost compensation. Civil society organisations oppose new EU rules and urge the Commission to focus on enforcing existing case law through infringement procedures. This is one of four publications that explore different aspects of the roadmap for effective and lawful access to data for law enforcement. These include a summary of the roadmap, and briefings on lawful interception, data retention and digital forensics. Source : © European Union, 2025 - EP Read more