Fourth Amendment — Warrant Requirement
Fourth Amendment
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
Amdt4.5 Warrant Requirement
Amdt4.5.1 Overview of Warrant Requirement
Emphasis upon the necessity of warrants places the judgment of an independent magistrate between law enforcement officers and the privacy of citizens, authorizes invasion of that privacy only upon a showing that constitutes probable cause, and limits that invasion by specification of the person to be seized, the place to be searched, and the evidence to be sought.1 Although a warrant is issued ex parte, its validity may be contested in a subsequent suppression hearing if incriminating evidence is found and a prosecution is brought.2
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Amdt4.5.2 Neutral and Detached Magistrate
In numerous cases, the Court has referred to the necessity that warrants be issued by a “judicial officer” or a “magistrate.”1 “The point of the Fourth Amendment, which often is not grasped by zealous officers, is not that it denies law enforcement the support of the usual inferences which reasonable men draw from evidence. Its protection consists in requiring that those inferences be drawn by a neutral and detached magistrate instead of being judged by the officer engaged in the often competitive enterprise of ferreting out crime. Any assumption that evidence sufficient to support a magistrate’s disinterested determination to issue a search warrant will justify the officers in making a search without a warrant would reduce the Amendment to a nullity and leave the people’s homes secure only in the discretion of police officers.”2 These cases do not mean that only a judge or an official who is a lawyer may issue warrants, but they do stand for two tests of the validity of the power of the issuing party to so act. “He must be neutral and detached, and he must be capable of determining whether probable cause exists for the requested arrest or search.”3 The first test cannot be met when the issuing party is himself engaged in law enforcement activities,4 but the Court has not required that an issuing party have that independence of tenure and guarantee of salary that characterizes federal judges.5 And, in passing on the second test, the Court has been essentially pragmatic in assessing whether the issuing party possesses the capacity to determine probable cause.6
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Amdt4.5.3 Probable Cause Requirement
The concept of “probable cause” is central to the meaning of the Warrant Clause. Neither the Fourth Amendment nor the federal statutory provisions relevant to the area define “probable cause”; the definition is entirely a judicial construct. An applicant for a warrant must present to the magistrate facts sufficient to enable the officer himself to make a determination of probable cause. “In determining what is probable cause . . . [w]e are concerned only with the question whether the affiant had reasonable grounds at the time of his affidavit . . . for the belief that the law was being violated on the premises to be searched; and if the apparent facts set out in the affidavit are such that a reasonably discreet and prudent man would be led to believe that there was a commission of the offense charged, there is probable cause justifying the issuance of a warrant.”1 Probable cause is to be determined according to “the factual and practical considerations of everyday life on which reasonable and prudent men, not legal technicians, act.”2 Warrants are favored in the law and their use will not be thwarted by a hypertechnical reading of the supporting affidavit and supporting testimony.3 For the same reason, reviewing courts will accept evidence of a less “judicially competent or persuasive character than would have justified an officer in acting on his own without a warrant.”4 Courts will sustain the determination of probable cause so long as “there was substantial basis for [the magistrate] to conclude that” there was probable cause.5
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Amdt4.5.4 Particularity Requirement
“The requirement that warrants shall particularly describe the things to be seized makes general searches under them impossible and prevents the seizure of one thing under a warrant describing another. As to what is to be taken, nothing is left to the discretion of the officer executing the warrant.”1 This requirement thus acts to limit the scope of the search, as the executing officers should be limited to looking in places where the described object could be expected to be found.2 The purpose of the particularity requirement extends beyond prevention of general searches; it also assures the person whose property is being searched of the lawful authority of the executing officer and of the limits of his power to search. It follows, therefore, that the warrant itself must describe with particularity the items to be seized, or that such itemization must appear in documents incorporated by reference in the warrant and actually shown to the person whose property is to be searched.3
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Amdt4.5.5 Knock and Announce Rule
The Fourth Amendment’s “general touchstone of reasonableness . . . governs the method of execution of the warrant.”1 Until recently, however, most such issues have been dealt with by statute and rule.2 It was a rule at common law that before an officer could break and enter he must give notice of his office, authority, and purpose and must in effect be refused admittance,3 and until recently this has been a statutory requirement in the federal system4 and generally in the states. In Ker v. California,5 the Court considered the rule of announcement as a constitutional requirement, although a majority there found circumstances justifying entry without announcement.
In Wilson v. Arkansas,6 the Court determined that the common law “knock and announce” rule is an element of the Fourth Amendment reasonableness inquiry. The rule is merely a presumption, however, that yields under various circumstances, including those posing a threat of physical violence to officers, those in which a prisoner has escaped and taken refuge in his dwelling, and those in which officers have reason to believe that destruction of evidence is likely. The test, articulated two years later in Richards v. Wisconsin,7 is whether police 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.” In Richards, the Court held that there is no blanket exception to the rule whenever officers are executing a search warrant in a felony drug investigation; instead, a case-by-case analysis is required to determine whether no-knock entry is justified under the circumstances.8 Similarly, if officers choose to knock and announce before searching for drugs, circumstances may justify forced entry if there is not a prompt response.9 Recent federal laws providing for the issuance of warrants authorizing in certain circumstances “no-knock” entries to execute warrants will no doubt present the Court with opportunities to explore the configurations of the rule of announcement.10 A statute regulating the expiration of a warrant and issuance of another “should be liberally construed in favor of the individual.”11 Similarly, just as the existence of probable cause must be established by fresh facts, so the execution of the warrant should be done in timely fashion so as to ensure so far as possible the continued existence of probable cause.12
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Amdt4.5.6 Other Considerations When Executing a Warrant
Because police actions in execution of a warrant must be related to the objectives of the authorized intrusion, and because privacy of the home lies at the core of the Fourth Amendment, police officers violate the Amendment by bringing members of the media or other third parties into a home during execution of a warrant if presence of those persons was not in aid of execution of the warrant.1
In executing a warrant for a search of premises and of named persons on the premises, police officers may not automatically search someone else found on the premises.2 If they can articulate some reasonable basis for fearing for their safety they may conduct a “patdown” of the person, but in order to search they must have probable cause particularized with respect to that person. However, in Michigan v. Summers,3 the Court held that officers arriving to execute a warrant for the search of a house could detain, without being required to articulate any reasonable basis and necessarily therefore without probable cause, the owner or occupant of the house, whom they encountered on the front porch leaving the premises. The Court determined that such a detention, which was “substantially less intrusive” than an arrest, was justified because of the law enforcement interests in minimizing the risk of harm to officers, facilitating entry and conduct of the search, and preventing flight in the event incriminating evidence is found.4 For the same reasons, officers may use “reasonable force,” including handcuffs, to effectuate a detention.5 Also, under some circumstances, officers may search premises on the mistaken but reasonable belief that the premises are described in an otherwise valid warrant.6
Limits on detention incident to a search were addressed in Bailey v. United States, a case in which an occupant exited his residence and traveled some distance before being stopped and detained.7 The Bailey Court held that the detention was not constitutionally sustainable under the rule announced in Summers.8 According to the Court, application of the categorical exception to probable cause requirements for detention incident to a search is determined by spatial proximity, that is, whether the occupant is found “within the immediate vicinity of the premises to be searched,”9 and not by temporal proximity, that is, whether the occupant is detained “as soon as reasonably practicable” consistent with safety and security. In so holding, the Court reasoned that limiting the Summers rule to the area within which an occupant poses a real threat ensures that the scope of the rule regarding detention incident to a search is confined to its underlying justification.10
Although, for purposes of execution, as for many other matters, there is little difference between search warrants and arrest warrants, one notable difference is that the possession of a valid arrest warrant cannot authorize authorities to enter the home of a third party looking for the person named in the warrant; in order to do that, they need a search warrant signifying that a magistrate has determined that there is probable cause to believe the person named is on the premises.11
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