35Accordingly, only the objectives of combating serious crime or preventing serious threats to public security are capable of justifying public authorities having access to a set of traffic or location data, that are liable to provide information regarding the communications made by a user of a means of electronic communication or regarding the location of the terminal equipment which he or she uses and that allow precise conclusions to be drawn concerning the private lives of the persons concerned (see, to that effect, judgment of 2 October 2018, Ministerio Fiscal, C‑207/16, EU:C:2018:788, paragraph 54), and other factors relating to the proportionality of a request for access, such as the length of the period in respect of which access to such data is sought, cannot have the effect that the objective of preventing, investigating, detecting and prosecuting criminal offences in general is capable of justifying such access.
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.