43In that context, where the authorities concerned agree on a second new surrender date pursuant to Article 23(3) of the Framework Decision, the executing judicial authority will be able to decide to hold the requested person in custody, in accordance with Article 6 of the Charter of Fundamental Rights, only in so far as the surrender procedure has been carried out in a sufficiently diligent manner and in so far as, consequently, the duration of the custody is not excessive. In order to ensure that that is indeed the case, that authority will be required to carry out a concrete review of the situation at issue, taking account of all of the relevant factors (see, to that effect, judgment of 16 July 2015, Lanigan , C‑237/15 PPU, EU:C:2015:474, paragraphs 58 and 59).
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