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.
Special Needs Exception
The Supreme Court has said that there is a category of searches where there are “special needs,” where warrants do not need to be obtained and often where less than probable cause is required. There is no precise definition of the category of “special needs.” Some examples, such as checkpoints and border searches, could be regarded as “special needs” situations. The Court also has considered this in the context of administrative inspections and also drug testing. The special needs category often, though not always, involves searches for reasons other than criminal law enforcement. In fact, Ferguson v. City of Charleston stresses that “special needs” must be more than the special need to have more effective law enforcement. Most recently, the Court has considered “special needs” in terms of the ability of police to take DNA from a suspect to see if it matches DNA from an unsolved crime.
Administrative Searches (Special Needs)
Inspectors must have a warrant for searches of private residences and commercial buildings. However, the same standard of probable cause as is required for other searches is not required for a valid administrative inspection warrant. A showing of a general and neutral enforcement plan will justify issuance of the warrant, which is designed to guard against selective enforcement.
Exceptions:
- (a) Contaminated Food → A warrant is not required for the seizure of spoiled or contaminated food.
- (b) Highly Regulated Industries → A warrant is not required for searches of businesses in highly regulated industries, because of the urgent public interest and the theory that the business has impliedly consented to warrantless searches by entering into a highly regulated industry. Such industries include liquor, guns, strip mining, and automobile junkyards, but not car leasing or general manufacturing.
Border Searches (Special Needs)
There is a diminished expectation of privacy at the border and its functional equivalents due to competing interests of national sovereignty. Searches there do not require a warrant, probable cause, or reasonable suspicion. A functional equivalent of the border might be a point near the border where several routes all leading to the border merge.
Permissible border searches include the opening of international mail, which postal regulations authorize when postal authorities have reasonable cause to suspect that the mail contains contraband, although the regulations prohibit the authorities from reading any correspondence inside.
Border officials may stop an automobile at a fixed checkpoint inside the border for questioning of the occupants even without a reasonable suspicion that the automobile contains illegal aliens. Officials may disassemble stopped vehicles at such checkpoints, even without reasonable suspicion. However, the Supreme Court has suggested that nonroutine, personal searches at the border (e.g., strip searches or body cavity searches) may require probable cause.
If the officials have a “reasonable suspicion” that a traveler is smuggling contraband in her stomach, they may detain her for a time reasonable under the circumstances.
Checkpoints (Special Needs)
In certain cases where special law enforcement needs are involved, the Court allows police officers to set up roadblocks to stop cars without individualized suspicion that the driver has violated some law. To be valid, it appears that such roadblocks must:
- (i) stop cars on the basis of some neutral, articulable standard (e.g., every car or every third car); and
- (ii) be designed to serve purposes closely related to a particular problem pertaining to automobiles and their mobility.
Examples: Because of the gravity of the drunk driving problem and the magnitude of the states’ interest in getting drunk drivers off the roads, police may set up roadblocks to check the sobriety of all drivers passing by. However, the police may not set up roadblocks to check cars for illegal drugs. The nature of such a checkpoint is to detect evidence of ordinary criminal wrongdoing unrelated to use of cars or highway safety. If suspicionless stops were allowed under these circumstances, all suspicionless seizures would be justified.
School Searches (Special Needs)
A warrant or probable cause is not required for searches conducted by public school officials; only reasonable grounds for the search are necessary. This exception is justified due to the nature of the school environment. The Court has also upheld a school district rule that required students participating in any extracurricular activity to submit to random urinalysis drug testing monitored by an adult of the same sex. A school search will be held to be reasonable only if:
- (1) it offers a moderate chance of finding evidence of wrongdoing;
- (2) the measures adopted to carry out the search are reasonably related to the objectives of the search; and
- (3) the search is not excessively intrusive in light of the age and sex of the student and nature of the infraction.
Government Employee Searches (Special Needs)
A warrantless search of a government employee’s desk and file cabinets is permissible under the Fourth Amendment if it is reasonable in scope and if it is justified at its inception by a noninvestigatory, work-related need or a reasonable suspicion of work-related misconduct.
Drug Testing (Special Needs)
Although government-required drug testing constitutes a search, the Supreme Court has upheld such testing without a warrant, probable cause, or even individualized suspicion when justified by “special needs” beyond the general interest of law enforcement. Examples:
- (1) The government can require railroad employees who are involved in accidents to be tested for drugs after the accidents.
- (2) The government can require persons seeking Customs positions connected to drug interdiction to be tested for drugs. There is a special need for such testing because persons so employed will have ready access to large quantities of drugs.
- (3) The government can require public school students who participate in any extracurricular activities to submit to random drug tests because of the special interest schools have in the safety of their students.
- (4) Special needs do not justify a warrantless and nonconsensual urinalysis test to determine whether a pregnant woman has been using cocaine, where the main purpose of the testing is to generate evidence that may be used by law enforcement personnel to coerce women into drug programs.
- (5) The government may not require candidates for state offices to certify that they have taken a drug test within 30 days prior to qualifying for nomination or election—there is no special need for such testing.
Searches in Jails or Prisons (Special Needs)
Jail officials need not have reasonable suspicion that a person arrested for a minor offense possesses a concealed weapon or contraband to subject him to a strip search before admitting him to the general prison population. Deference must be given to the officials unless there is substantial evidence indicating that their response to a situation is exaggerated. The risks that an unsearched prisoner poses are great—from diseases to weapons to gang affiliations. Therefore, suspicionless strip searches are not an exaggerated response.
DNA Testing of Arrestees (Special Needs)
When officers make an arrest supported by probable cause to hold for a serious offense and they bring the suspect to the police station to be detained in custody, taking and analyzing a cheek swab of the arrestee’s DNA is a legitimate police booking procedure that is a reasonable search under the Fourth Amendment.
Probation or Parole Exception
The Supreme Court has upheld warrantless searches of a parolee and his home—even without reasonable suspicion—where a state statute provided that as a condition of parole, a parolee agreed that he would submit to searches by a parole officer or police officer at any time, with or without a search warrant or probable cause. The Court held that such warrantless searches are reasonable under the Fourth Amendment because a parolee has a diminished expectation of privacy under such a statute and the government has a heightened need to search parolees because they are less likely than the general population to be law-abiding.
Probable Cause to Arrest
An arrest must be based on probable cause. Probable cause to arrest is present when, at the time of arrest, the officer has within her knowledge reasonably trustworthy facts and circumstances sufficient to warrant a reasonably prudent person to believe that the suspect has committed or is committing a crime for which arrest is authorized by law.
Three questions seem particularly important with regard to seizures. First, is a warrant needed for arrests? Second, when does a seizure occur? Finally, is an arrest permissible for a minor offense that does not carry with it the possibility of a prison term?
Is a Warrant Needed for Arrests?
In contrast to the rule for searches, police generally need not obtain a warrant before arresting a person in a public place, even if they have time to get a warrant.
When Is a Person Seized?
Generally, it is obvious when police arrest or seize a person. When it is not readily apparent, the Supreme Court has indicated that a seizure occurs only when, under the totality of the circumstances, a reasonable person would feel that he was not free to decline the officer’s requests or otherwise terminate the encounter. In this regard, police pursuit of a suspect is not a seizure in and of itself. To constitute a seizure, the Fourth Amendment requires a physical application of force by the officer or a submission to the officer’s show of force. It is not enough that the officer merely ordered the person to stop.
- Example: Officers boarded a bus shortly before its departure and asked individuals for identification and consent to search their luggage. The mere fact that people felt they were not free to leave because they feared that the bus would depart does not make this a seizure of the person.
For What Crimes May a Person Be Arrested?
(a) Felony → A police officer may arrest a person without a warrant when she has probable cause to believe that a felony has been committed and that the person before her committed it.
(b) Misdemeanor → An officer may make a warrantless arrest for a misdemeanor committed in her presence. A crime is committed in the officer’s “presence” if she is aware of it through any of her senses.
- Note: The police may make a warrantless misdemeanor arrest even if the crime for which the arrest is made cannot be punished by incarceration.
(c) Exception: Home Arrests Require Warrant → The police must have an arrest warrant to effect a nonemergency arrest of an individual in her own home. The officers executing the warrant may enter the suspect’s home only if there is reason to believe the suspect is within it. All warrantless searches of homes are presumed unreasonable. The burden is on the government to demonstrate sufficient exigent circumstances to overcome this presumption.
- Homes of Third Parties → Absent exigent circumstances, the police executing an arrest warrant may not search for the subject of the warrant in the home of a third party without first obtaining a separate search warrant for the home. If the police do execute an arrest warrant at the home of a third party without obtaining a search warrant for the home, the arrest is still valid, but evidence of any crime found in the home cannot be used against the owner of the home since it is the fruit of an unconstitutional search. However, the arrestee will not be able to have such evidence suppressed unless he can establish a legitimate expectation of privacy in the home.
(d) Effect of Invalid Arrests → An unlawful arrest, by itself, has no impact on a subsequent criminal prosecution. Thus, if the police improperly arrest a person (e.g., at his home without a warrant), they may detain him if they have probable cause to do so, and the invalid arrest is not a defense to the offense charged. Of course, evidence that is a fruit of the unlawful arrest may not be used against the defendant at trial because of the exclusionary rule.
Authority for Police to Stop and Frisk
Police have the authority to briefly detain a person for investigative purposes even if they lack probable cause to arrest. To make such a stop, police must have a reasonable suspicion supported by articulable facts of criminal activity or involvement in a completed crime.
- Note: If the police also have reasonable suspicion to believe that the detainee is armed and dangerous, they may also conduct a frisk (a limited search) to ensure that the detainee has no weapons.
Distinction Between Stops and Arrests
Under Terry v. Ohio, both stops and arrests are seizures within the meaning of the Fourth Amendment. Arrests, though, must be based on probable cause, while stops require only reasonable suspicion. The Court has made clear that if a person is detained for sustained interrogation that is an arrest within the meaning of the Fourth Amendment.
The duration of the detention also matters in determining whether there has been a stop or an arrest. In United States v. Place, the Court found that detaining a person’s luggage for 90 minutes was a seizure under the Fourth Amendment. But the Court has not imposed rigid time limits in determining when a stop becomes an arrest. In other cases, stops amounting to between 30-45 minutes were not arrests.
What May Police Do When They Stop an Individual?
Terry v. Ohio says that police may frisk an individual if there is reasonable suspicion to believe that the suspect is armed and dangerous. In Michigan v. Long, the Court said that the police may conduct a cursory “frisk” of a car if there is reason to believe that there is a weapon in the car and that the person may gain access to that weapon.
When the police frisk a person, they may seize any evidence that is apparent to their experienced “plain feel.” Minnesota v. Dickerson drew a distinction between “plain touch,” which is allowed, and the police manipulating the lining of a person’s clothes to look for evidence, which is not permitted.
As long as the police have the reasonable suspicion required to make a Terry stop, they may require the detained person to identify himself (i.e., state his name), and the detainee may be arrested for failure to comply with such a requirement.
What is Sufficient for Reasonable Suspicion?
The Court has not specifically defined “reasonable suspicion.” It requires something more than a vague suspicion (e.g., it is not enough that the detainee was in a crime-filled area), but full probable cause is not required. Whether the standard is met is judged under the totality of the circumstances.
Reasonable Suspicion Based on Informants’ Tips
Where the source of suspicion of criminal activity is an informant’s tip, the tip must be accompanied by indicia of reliability, including predictive information, sufficient to make the officer’s suspicion reasonable. The Court has also held that an anonymous tip of a person driving erratically is sufficient to make a stop in that context.
Reasonable Suspicion Based on Avoiding a Police Officer
Reasonable suspicion justifying a stop is present when: (i) a suspect who is standing on a corner in a high crime area (ii) flees after noticing the presence of the police. Neither factor standing alone is enough to justify a stop, but together they are sufficiently suspicious. (Illinois v. Wardlow).
Electronic Surveillance
Wiretapping and any other form of electronic surveillance that violates a reasonable expectation of privacy constitute a search under the Fourth Amendment. (Katz v. United States). In Berger v. New York, the Supreme Court indicated that for a valid warrant authorizing a wiretap to be issued, the following requirements must be met:
- (1) a showing of probable cause to believe that a specific crime has been or is being committed must be made;
- (2) the suspected persons whose conversations are to be overheard must be named;
- (3) the warrant must describe with particularity the conversations that can be overheard;
- (4) the wiretap must be limited to a short period of time (although extensions may be obtained upon an adequate showing);
- (5) provisions must be made for the termination of the wiretap when the desired information has been obtained; and
- (6) a return must be made to the court, showing what conversations have been intercepted.
Exceptions:
- (a) “Unreliable Ear” → A speaker assumes the risk that the person to whom she is talking is unreliable. If the person turns out to be an informer wired for sound or taping the conversation, the speaker has no basis in the Fourth Amendment to object to the transmitting or recording of the conversation as a warrantless search. (United States v. White).
- (b) “Uninvited Ear” → A speaker has no Fourth Amendment claim if she makes no attempt to keep the conversation private. (Katz).
When Does the Exclusionary Rule Apply?
In Herring v. United States, the Supreme Court imposed substantial limits on the application of the exclusionary rule. The Court held that the exclusionary rule applies only to deliberate or reckless violations of the Fourth Amendment or those that are the result of systematic government policies. The exclusionary rule does not apply to negligent or good faith violations of the Fourth Amendment. The Court emphasized that the sole purpose of the exclusionary rule is to deter police misconduct.
Generally, not only must illegally obtained evidence be excluded, but also all evidence obtained or derived from exploitation of that evidence. The courts deem such evidence the tainted fruit of the poisonous tree.
In Davis v. United States, the Court reaffirmed that the exclusionary rule exists solely to deter violations of the Fourth Amendment and thus concluded that it does not apply when police follow the law as it existed as of the time of the search, even though the law was changed while the case was pending on appeal.
Who Can Object to the Introduction of Evidence Raised?
Only those whose Fourth Amendment rights were violated may raise the exclusionary rule. The Supreme Court has imposed a standing requirement so that a person can complain about an evidentiary search or seizure only if it violates his own reasonable expectations of privacy. Whether a person has a reasonable expectation of privacy generally is based on the totality of the circumstances, considering factors such as ownership of the place searched and location of the item seized.
- Search of Third Parties → Standing does not exist merely because a person will be harmed by introduction of evidence seized during an illegal search of a third person’s property.
- Automobile Passengers → An automobile stop constitutes a seizure not only of the automobile’s driver, but also any passengers as well. (Brendlin v. California).
Balancing Test (Exceptions to the Exclusionary Rule)
In recent cases, the Court has emphasized that in deciding whether to apply the exclusionary rule, lower courts must balance the rule’s purpose (i.e., deterrence of police misconduct) against its costs (i.e., the exclusion of probative evidence). Therefore, exclusion of tainted evidence, including fruit of the poisonous tree, is not automatic; whether exclusion is warranted in a given case depends on the culpability of the police and the potential of the exclusion to deter wrongful police conduct. (Herring v. United States).