51As regards, specifically, the requirement of a right guaranteed by EU law within the meaning of Article 47 of the Charter, it should be borne in mind that, according to settled case-law, protection against arbitrary or disproportionate intervention by public authorities in the sphere of the private activities of any natural or legal person constitutes a general principle of EU law (judgments of 21 September 1989, Hoechst v Commission, 46/87 and 227/88, EU:C:1989:337, paragraph 19, and of 22 October 2002, Roquette Frères, C‑94/00, EU:C:2002:603, paragraph 27, and order of 17 November 2005, Minoan Lines v Commission, C‑121/04 P, not published, EU:C:2005:695, paragraph 30).
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