74Therefore, in order to guarantee that an applicant for international protection has an effective judicial remedy within the meaning of Article 47 of the Charter, and in accordance with the principle of sincere cooperation enshrined in Article 4(3) TEU, a national court or tribunal seised of an appeal is required to vary a decision of the administrative or quasi-judicial body, in the present case the Immigration Office, that does not comply with its previous judgment and to substitute is own decision on the application by the person concerned for international protection by disapplying, if necessary, the national law that prohibits it from proceeding in that way (see, by analogy, judgment of 5 June 2014, Mahdi, C‑146/14 PPU, EU:C:2014:1320, paragraph 62).
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