Criminal Procedure Flashcards
What constitutes a search and seizure?
A search is a governmental intrusion which violates a reasonable expectation of privacy, or an intrusion onto private property for the purpose of seizing information.
The Supreme Court has adopted a two part test for determining whether there is a reasonable expectation of privacy: (1) the person must have a subjective expectation of privacy; and (2) society must be prepared to recognize that expectation as objectively reasonable.
Open Fields Searches
Under the “open fields” doctrine, areas outside the “curtilage” (dwelling house and outbuildings) are subject to police entry and search—these areas are “held out to the public” and are unprotected by the Fourth Amendment. Curtilage questions should be resolved with particular reference to four factors:
- (1) the proximity of the area claimed to be curtilage to the home,
- (2) whether the area is included within an enclosure surrounding the home,
- (3) the nature of the uses to which the area is put, and
- (4) the steps taken by the resident to protect the area from observation by people passing by.
Even a building such as a barn may be considered to be outside the curtilage and therefore outside the protection of the Fourth Amendment. In addition, the Fourth Amendment does not prohibit the warrantless search and seizure of garbage left for collection outside the curtilage of a home.
Aerial Searches
The police may, within the Fourth Amendment, fly over a field or yard to observe with the naked eye things therein. Even a low (400 feet) fly-over by a helicopter to view inside a partially covered greenhouse is permissible. The police may also take aerial photographs of a particular site. The Court considers evidence of this nature to be legally obtained if the officers flew within legally navigable airspace.
Thermal Imaging of Homes
The Supreme Court has held that because of the strong expectation of privacy within one’s home, obtaining by sense enhancing technology any information regarding the interior of a home that could not otherwise have been obtained without physical intrusion constitutes a search, at least where the technology in question is not in general public use.
For example, in Kyllo, the use of a thermal imager on defendant’s home from outside the curtilage to detect the presence of high intensity lamps commonly used to grow marijuana constituted a search. All of the details of a home are “intimate,” and thus, there is a reasonable expectation of privacy.
Observation and Monitoring of Public Behavior
The Supreme Court frequently has stated, “What a person knowingly exposes to the public, even in his own home or office, is not a subject of Fourth Amendment protection.”
- (a) GPS Trackers → The police may not covertly place a GPS tracking device on a person’s automobile without a warrant. However, in Knotts, the Court found that placing a “beeper” to track the location of a barrel of chloroform purchased by the defendant did not constitute a search. The Court found that the governmental surveillance conducted by means of the beeper amounted principally to the following of an automobile on public streets and highways. A person travelling in an automobile on public thoroughfares has no reasonable expectation of privacy in his movements from one place to another.
- (b) Pen Registers → A pen register records only the numbers dialed from a certain phone. The Fourth Amendment does not require prior judicial approval for installation and use of pen registers.
Use of Dog Sniffs At Traffic Stops
As long as police officers have lawfully stopped a car and do not extend the stop beyond the time necessary to issue a ticket and conduct ordinary inquiries incident to such a stop, a dog sniff of the car does not implicate the Fourth Amendment. However, police officers may not extend an otherwise-completed traffic stop, absent reasonable suspicion, in order to complete a dog sniff. The key question is not whether the dog sniff occurs before the police issue the ticket, but rather whether the dog sniff adds time to the stop.
Note: During a routine traffic stop, a dog “alert” to the presence of drugs can form the basis for probable cause to justify a search of the automobile.
Use of Dog Sniffs At Entry of Home
Although the entry to a home is within the curtilage protected by the Fourth Amendment against unreasonable searches, a police officer may approach a home in hopes of speaking to its occupants—just like a private citizen, such as a neighbor or a delivery person. However, the scope of the license is limited. Police officers may not exceed the license by having a drug dog sniff around the entry or other areas within the curtilage. Such a physical intrusion into a constitutionally protected area constitutes a “search” within the meaning of the Fourth Amendment, and therefore requires a valid warrant or warrant exception.
The Requirement for Probable Cause
A core requirement of the Fourth Amendment is the requirement for probable cause. Generally, a judge may issue a search or arrest warrant only if there is probable cause. If it is a circumstance where a warrant is not required, a police officer generally can search or arrest only if there is probable cause. Three questions are particularly important in understanding probable cause:
- (1) What Is Sufficient Belief to Meet the Standard → In Gates, the Court departed from the Aguilar-Spinelli approach and emphasized the need to consider the “totality of the circumstances.”
- (2) Is It an Objective or a Subjective Standard? → To determine whether an officer had probable cause to arrest an individual, examine the events leading up to the arrest, and then decide whether these historical facts, viewed from the standpoint of an objectively reasonable police officer, amount to probable cause.
- (3) What if the Police Make a Mistake as to the Law? → A police officer’s mistake of law that gives rise to reasonable suspicion does not invalidate a seizure as long as the mistake was reasonable.
Valid Warrant Requirements
To be valid, a warrant must:
- (1) be issued by a neutral and detached magistrate;
- (2) be based on probable cause established from facts submitted to the magistrate by a government agent upon oath or affirmation; and
- (3) particularly describe the place to be searched and the items to be seized.
Anticipatory Warrants
An anticipatory warrant is based on an affidavit for a search warrant that states that the search will occur only if certain events take place. In Grubbs, the Court held that anticipatory warrants are no different in principle from ordinary warrants. They require the magistrate to determine (1) that it is now probable that (2) contraband, evidence of a crime, or a fugitive will be on the described premises (3) when the warrant is executed.
In order for a conditioned anticipatory warrant to comply with the Fourth Amendment’s requirement of probable cause, two prerequisites of probability must be satisfied. (1) It must be true not only that if the triggering condition occurs “there is a fair probability that contraband or evidence of a crime will be found in a particular place,” but also that (2) there is probable cause to believe the triggering condition will occur. The supporting affidavit must provide the magistrate with sufficient information to evaluate both aspects of the probable-cause determination.
How May Police Treat Those Who Are Present When a Warrant Is Being Executed?
The Supreme Court has held that a person who happens to be present in premises that are subject to a search cannot be searched just by virtue of being there. The Court explained that a search “must be supported by probable cause particularized with respect to that person.”
The Court has also held that when there is a search of a residence, those present at the time of the search may be detained. However, such detentions are limited to persons in the immediate vicinity of the premises when the warrant is being executed. It does not give officers authority to follow, stop, detain, and search persons who left the premises shortly before the warrant was executed.
Do Police Have to Knock and Announce Before Searching a Dwelling?
The Court has held that absent exigent circumstances, the police must knock and announce their presence before entering a residence to execute a search warrant.
- Sufficiency of Delay → If the officers executing a warrant have a reasonable fear that evidence, such as cocaine, will be destroyed after they announce themselves, a limited 15-20 second delay before using force to enter the house is reasonable.
“No Knock” Entries
No announcement need be made if the officer has reasonable suspicion, based on facts, that knocking and announcing would be dangerous or futile or that it would inhibit the investigation, e.g., because it would lead to the destruction of evidence. Whether a “no knock” entry is justified must be made on a case-by-case basis; a blanket exception for warrants involving drug investigations is impermissible.
- Note: The fact that property damage will result from a “no knock” entry does not require a different standard—reasonable suspicion is sufficient.
Exigent Circumstances Exception
In an emergency, the police can search without a warrant if there is probable cause. This situation is often referred to as exigent circumstances. For this exception to apply, it must be an emergency situation justifying warrantless activity, and there must be probable cause. The Court generally has been reluctant to find exigent circumstances, but the Court has found exigent circumstances in a number of situations: hot pursuit of a felon, protecting safety, and preventing destruction of evidence. Police officers may not enter a home to make a routine felony arrest.
Hot Pursuit (Exigent Circumstances)
Police officers in hot pursuit of a fleeing felon may make a warrantless search and seizure. The scope of the search may be as broad as may reasonably be necessary to prevent the suspect from resisting or escaping. When the police have probable cause and attempt to make a warrantless arrest in a “public place,” they may pursue the suspect into private dwellings.
Protecting Safety (Exigent Circumstances)
Emergencies that threaten health or safety if not immediately acted upon will justify a warrantless search. This includes situations where the police see someone injured or threatened with injury. Whether an emergency exists is determined objectively, from the officer’s point of view.
Destruction of Evidence (Exigent Circumstances)
Police officers may enter a home without a warrant to prevent the destruction of evidence, even if the exigency arose because police officers knocked on the door and asked for entry, as long as the officers have reason to believe that evidence is being destroyed and the officers did not create the exigency through an actual or threatened Fourth Amendment violation.
Plain View Exception
Police may seize unspecified property while executing a search warrant. The police may make a warrantless seizure when they:
- (i) are legitimately on the premises;
- (ii) discover evidence, fruits or instrumentalities of crime, or contraband;
- (iii) see such evidence in plain view; and
- (iv) have probable cause to believe (i.e., it must be immediately apparent) that the item is evidence, contraband, or a fruit or instrumentality of crime.
Automobile Exception
If the police have probable cause to believe that a vehicle such as an automobile contains contraband or fruits, instrumentalities, or evidence of a crime, they may search the vehicle without a warrant. If the police have full probable cause to search a vehicle, they can search the entire vehicle (including the trunk) and all containers within the vehicle that might contain the object for which they are searching. However, if the police only have probable cause to search a container (recently) placed in a vehicle, they may search that container, but the search may not extend to other parts of the car.
The search is not limited to the driver’s belongings and may extend to packages belonging to a passenger.
The automobile exception extends to any vehicle that has the attributes of mobility and a lesser expectation of privacy similar to a car. For example, the Supreme Court has held that it extends to motor homes if they are not at a fixed site.
Searches Incident to Arrest Exception
The police may conduct a warrantless search incident to an arrest as long as it was made on probable cause. If an arrest violates the Constitution, then any search incident to that arrest also will violate the Constitution. The police may conduct a search incident to arrest whenever they arrest a person, and this is true even if the arrest is invalid under state law, as long as the arrest was constitutionally valid (e.g., reasonable and based on probable cause).
Incident to a constitutional arrest, the police may search the person and areas into which he might reach to obtain weapons or destroy evidence (his “wingspan”). The arrestee’s wingspan follows him as he moves.
Police officers may inspect the physical attributes of a cell phone. However, they may not, without a warrant, search digital information on a cell phone seized from the arrestee.
After arresting the occupant of an automobile, the police may search the interior of the auto incident to the arrest if at the time of the search: (a) the arrestee is unsecured and still may gain access to the interior of the vehicle; or (b) the police reasonably believe that evidence of the offense for which the person was arrested may be found in the vehicle.
Inventory Searches Exception
The police may search an arrestee’s personal belongings in order to inventory them before incarcerating the arrestee. Similarly, the police may search an entire vehicle—including closed containers within the vehicle—that has been impounded, as long as the search is part of an established department routine.
Protective Sweeps Exception
The Court has held that when the police arrest a person, they may conduct a protective sweep of the premises if they have reasonable suspicion that a person might be there who poses a threat to them.
In Buie, the Court upheld such protective sweeps but said that such a sweep may extend only to a cursory inspection of those places where a person may be found. The police may make a protective sweep of the area beyond the defendant’s wingspan if they believe accomplices may be present.
Consent Searches Exception
The police may conduct a valid warrantless search if they have a voluntary consent to do so. Knowledge of the right to withhold consent, while a factor to be considered, is not a prerequisite to establishing a voluntary consent. The test for consent is whether it is voluntary under the totality of the circumstances.
The police may not act on consent from an occupant if a co-occupant is present and objects to the search and the search is directed against the co-occupant. If a co-occupant has objected to a search and is removed for a reason unrelated to the refusal (e.g., a lawful arrest), the police may act on consent of the occupant, even if the removed co-occupant had refused consent.
The scope of the search is limited by the scope of the consent. However, consent extends to all areas to which a reasonable person under the circumstances would believe it extends.
Third Party Doctrine
Under the third-party doctrine, a person has no legitimate expectation of privacy, for Fourth Amendment purposes, in information he voluntarily turns over to third parties, and that remains true even if the information is revealed on the assumption that it will be used only for a limited purpose; as a result, the Government is typically free to obtain such information from the recipient without triggering Fourth Amendment protections.
However, the Government must generally obtain a search warrant supported by probable cause before acquiring cell-site location information (CSLI) from a wireless carrier.