32A restriction on the freedom of movement may be permissible only if, in the first place, it is justified by an overriding reason in the public interest and, in the second place, it observes the principle of proportionality, which means that it is suitable for securing, in a consistent and systematic manner, the attainment of the objective pursued and does not go beyond what is necessary in order to attain it (see, to that effect, judgments of 17 November 2009, Presidente del Consiglio dei Ministri, C‑169/08, EU:C:2009:709, paragraph 42 and the case-law cited, and of 6 October 2020, Commission v Hungary (Higher education), C‑66/18, EU:C:2020:792, paragraph 178 and the case-law cited).
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