The Watson/Tele2 decision of the CJEU concerned section 1 and 2 of DRIPA and the Data Retention Regulations 2014. This contained the legislative scheme concerning the power of the Secretary of State to require communications service providers to retain communications data. Part 3 of the Counter-Terrorism and Security Act 2015 amended DRIPA so that an additional category of data - that necessary to resolve Internet Protocol addresses - could be included in a requirement to retain…