70
Opinion of the Court
struction of property, " 'more specific inferences of exigency are necessary' " when property is destroyed. Id., at 1301. It held that this heightened standard had not been met on the facts of this case. We granted certiorari and now reverse. 521 U. S. 1103 (1997).
In two recent cases we have considered whether and to what extent "no-knock" entries implicate the protections of the Fourth Amendment. In Wilson v. Arkansas, 514 U. S. 927 (1995), we reviewed the Arkansas Supreme Court's holding that the common-law requirement that police officers knock and announce their presence before entering played no role in Fourth Amendment analysis. We rejected that conclusion, and held instead that "in some circumstances an officer's unannounced entry into a home might be unreasonable under the Fourth Amendment." Id., at 934. We were careful to note, however, that there was no rigid rule requiring announcement in all instances, and left "to the lower courts the task of determining the circumstances under which an unannounced entry is reasonable under the Fourth Amendment." Id., at 934, 936.
In Richards v. Wisconsin, 520 U. S. 385 (1997),1 the Wisconsin Supreme Court held that police officers executing search warrants in felony drug investigations were never required to knock and announce their presence. We concluded that this blanket rule was overly broad and held instead that "[i]n order to justify a 'no-knock' entry, the police must have a reasonable suspicion that knocking and announcing their presence, under the particular circumstances, would be dangerous or futile, or that it would inhibit the effective investigation of the crime by, for example, allowing the destruction of evidence." Id., at 394.
Neither of these cases explicitly addressed the question whether the lawfulness of a no-knock entry depends on whether property is damaged in the course of the entry. It
1 It should be noted that our opinion in Richards came down after the Court of Appeals issued its opinion in this case.
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