72Admittedly, the legislative measures that are referred to in Article 15(1) of Directive 2002/58 concern activities characteristic of States or State authorities, and are unrelated to fields in which individuals are active (see, to that effect, judgment of 29 January 2008, Promusicae, C‑275/06, EU:C:2008:54, paragraph 51). Moreover, the objectives which, under that provision, such measures must pursue, such as safeguarding national security, defence and public security and the prevention, investigation, detection and prosecution of criminal offences or of unauthorised use of the electronic communications system, overlap substantially with the objectives pursued by the activities referred to in Article 1(3) of that directive.
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