34In that regard, it has inter alia been held that legislative measures concerning the processing of data in themselves relating to the civil identity of users of electronic communications systems, including the retention of and access to those data, solely for the purpose of identifying the user concerned, and without it being possible for those data to be associated with information on the communications made, are capable of being justified by the objective of preventing, investigating, detecting and prosecuting criminal offences in general, to which the first sentence of Article 15(1) of Directive 2002/58 refers. Those data do not, in themselves, make it possible to ascertain the date, time, duration and recipients of the communications made, or the locations where those communications took place or their frequency with specific people during a given period, with the result that they do not provide, apart from the contact details of users of means of electronic communication, such as their addresses, any information on the communications sent and, consequently, on the users’ private lives. Thus, the interference entailed by a measure relating to those data cannot, in principle, be classified as serious (see, to that effect, judgment of 6 October 2020, La Quadrature du Net and Others, C‑511/18, C‑512/18 and C‑520/18, EU:C:2020:791, paragraphs 157 and 158 and the case-law cited).
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