30Such a restriction may nonetheless be accepted if it is justified by an overriding reason in the public interest and complies with the principle of proportionality, in that it must be appropriate for securing the attainment of the objective it pursues and must not go beyond what is necessary to attain it (judgment of 27 January 2009, Persche, C‑318/07, EU:C:2009:33, paragraph 52).
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