1. Anderson, D.: A question of trust: report of the investigatory powers review. HM Stationery Office (2015)
2. Cameron, I.: Balancing data protection and law enforcement needs: Tele2 Sverige and Watson. Common Mark. Law Rev. 54(5), 1467 (2017)
3. Commission, E.: Evaluation report on the Data Retention Directive. COM(2011) 225
4. Commission, E.: Extended Impact Assessment: annex to a proposal for a directive of the European Parliament and of the Council on the retention of data processed in connection with the provision of public electronic communication services and amending Directive 2002/58/EC. SEC(2005) 1131
5. Fabbrini, F.: Human rights in the digital age: the European Court of Justice ruling in the data retention case and its lessons for privacy and surveillance in the US. Harv. Hum. Rights J. 28, 65 (2015)