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Rh added)). These textual cues indicate that even if an alien was not arrested under authority bestowed by subsection (c)(1), he may face mandatory detention under subsection (c)(2).

But even if the Court of Appeals were right to reject this reading, the result below would be wrong. To see why, assume with the Court of Appeals that only someone arrested under authority created by §1226(c)(1)—rather than the more general §1226(a)—may be detained without a bond hearing. And assume that subsection (c)(1) requires immediate arrest. Even then, the Secretary’s failure to abide by this time limit would not cut off her power to arrest under subsection (c)(1). That is so because, as we have held time and again, an official’s crucial duties are better carried out late than never. See Sylvain v. Attorney General of U. S., 714 F. 3d 150, 158 (CA3 2013) (collecting cases). Or more precisely, a statutory rule that officials “ ‘shall’ act within a specified time” does not by itself “preclud[e] action later.” Barnhart v. Peabody Coal Co., 537 U. S. 149, 158 (2003).

Especially relevant here is our decision in United States v. Montalvo-Murillo, 495 U. S. 711 (1990). There we held that “a provision that a detention hearing ‘shall be held immediately upon the [detainee’s] first appearance before the judicial officer’ did not bar detention after a tardy hearing.” Barnhart, 537 U. S., at 159 (quoting Montalvo-Murillo, 495 U. S., at 714). In that case, we refused to “bestow upon the defendant a windfall” and “visit upon the Government and the citizens a severe penalty by mandating release of possibly dangerous defendants every time some deviation from the [statutory] strictures… occur[red].” Montalvo-Murillo, 495 U. S., at 720. Instead, we gave effect to the principle that “ ‘if a statute does not specify a consequence for noncompliance with statutory