33So far as concerns the objective of preventing, investigating, detecting and prosecuting criminal offences, which is pursued by the legislation at issue in the main proceedings, in accordance with the principle of proportionality only action to combat serious crime and measures to prevent serious threats to public security are capable of justifying serious interference with the fundamental rights enshrined in Articles 7 and 8 of the Charter, such as the interference entailed by the retention of traffic and location data, whether the retention be general and indiscriminate or targeted. Accordingly, only non-serious interference with those fundamental rights may be justified by the objective, pursued by the legislation at issue in the main proceedings, of preventing, investigating, detecting and prosecuting criminal offences in general (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 140 and 146).
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