4th Amendment Flashcards
(51 cards)
Opening Paragraph
The Fourth Amendment guarantees the right of the people to be secure in their persons, houses, papers, and effects against unreasonable searches and seizures. In order for the Fourth Amendment protections to apply, there must be several factors present. First, there must be government action. Here, Specific government actors are government actors and acted in their official capacity as such. Because there is a state (Specific State) government actor, the Fourth Amendment is applicable to the states through the 14th Amendment. In addition, there must be either a search or seizure to trigger the Fourth Amendment’s protections. Warrantless searches and seizures are per se unreasonable unless they fall within one of the well-delineated exceptions to the warrant requirement. In addition, the remedy for a violation of the Fourth Amendment is exclusion of the evidence unless an exception to the Exclusionary Rule applies.
4th Amendment Requires:
- Government action with US [if not, no 4th Amendment issue]
- Action must qualify as “search”/”seizure” [if not, no 4th amendment issue]
Government Actor
The constitutional rules in criminal procedure provide protection against the actions of government officials or those who act as agents or instruments of the government; the constitutional rules provide no protection against private citizens acting without government encouragement.
- Fed Gov. Actor/State Actor
- Additional Categories of potential gov actors:
a. Private paid police, but only if they’re deputized with power to arrest
Common e.x., campus police at public universities
Public school officials (principals, vice-principals)
Searches
A governmental invasion of a person’s constitutionally protected reasonable expectation of privacy.
Searches Require:
- warrant (need probable cause)
- Warrant exception with no warrant (might need PC or reasonable suspicion depending)
Katz Test
- Did the defendant manifest a subjective expectation of privacy?
- If so, does society recognize that expectation of privacy as reasonable? (objective)
If yes to both, police perform a search within the meaning of the 4th Amendment.
Ex. When police electronically listen and record person’s phone calls, it violates privacy which he justifiably relied (which constitutes search & seizure within meaning of 4th Amend)
Jones Test
Is there a government intrusion on a constitutionally protected area (person, home, papers, effect) for the purpose of obtaining information?
ex. Gov installation of GPS on person’s vehicle (effect) and use of that device to monitor vehicle’s movement constitutes search.
Open Fields
Open field not a person’s/houses/papers/effects, so gov intrusion to open field not an unreasonable search according to 4th Amendment, even into privately owned open fields. Individual can’t demand privacy for activities conducted outside in fields, except in curtilage (area is so intimately tied to home should fall under 4th Amendment protection).
Curtilage determination factors:
Proximity of area claim to be curtilage to the home.
Whether area is included within enclosure surrounding home.
Nature of use to which area is put.
Steps taken by resident to protect area from observation by passerby
Oliver v. US
D. had ‘no trespassing’ signs, there was a locked fence, and the field wasn’t in view of the public if you weren’t on his property.
Court does Katz test, but found no objective reasonable expectation of privacy. No search!
U.S. v. Dunn
Is the barnyard (50 yards from the fence around the house) part of the curtilage (home) that would be protected by 4th?
Court found no curtilage but also said observation was from an open field-never entered barn. Warrantless naked-eye observation of protected places is not unconstitutional.
Aerial Surveillance
Aerial observation of a home’s curtilage is not a search if the curtilage is visible from the public navigable airspace. An individual’s expectation that his curtilage or garden is protected from such observation is unreasonable and is not an expectation that society is prepared to honor.
Exs.California v. Ciraolo (1986)
1. Curtilage? Surveillance at 1000 feet of fenced in backyard without warrant.
2. Katz test: no objective reasonable expectation of privacy, because evidence was seen by naked eye.
Florida v. Riley (1989)
1. Surveillance of interior of a partially covered greenhouse in a residential backyard (curtilage) from a helicopter flying at 400 feet is not a search. The info used to get a warrant.
2. Katz test: no objective reasonable expectation of privacy, because evidence was seen by naked eye.
Thermal Imaging
When police use a thermal imager or a similar device that is not in general public use to explore details of the home that would previously have been unknowable without physical intrusion, the surveillance is a “search” and is presumptively unreasonable without a warrant. Thermal imaging is more than the naked eye.
Ex. Kyllo v. US (2001)
1.Thermal imaging of a house from the public street to detect heat is a search. Info (with tips and utility bills ) used to get a warrant.
2.Katz test: Had both subjective and objective expectation of privacy. Yes search.
Searches of Trash
A search does not occur when police gather and sort through an individual’s trash left for collection outside the curtilage of a home. Because trash left for collection on a public street is readily accessible to others, including the garbage collector, it is not objectively reasonable to expect that its content will remain private.
Ex. California v. Greenwood (1988)
1. Police look through trash without warrant.
2. Katz test: subjectively yes, but objectively no. No search.
3. Knowingly expose to public isn’t protected.
Observation & Monitoring Public Behavior (Trackers/Beepers)
- A search does not occur when police install an electronic tracking device on property that does not yet belong to the defendant and then use the devise, once in the defendant’s possession, to reveal information regarding his public movements that could also be obtained through ordinary visual surveillance. A person traveling on public thoroughfares has no reasonable expectation of privacy in his movements from one place to another.
- A search does occurs when police use an electronic tracking device to obtain information about the interior of a private residence that they could not have obtained by observation from outside the curtilage. Private residences are places in which the individual normally expects privacy free of governmental intrusion not authorized by a warrant, and that expectation is one that society is prepared to recognize as reasonable.
Ex. US v. Knotts (1983)
1. Monitoring of signal of beeper (tracker) placed in container transported to cabin by driving on public roads (not in cabin).
2.Katz test: No subjective or objective expectation of privacy. No search.
3. No search–beeper surveillance is like following vehicle on public roads–knowingly exposing
Ex. US v. Karo (1984)
1. Tracker installed into either with consent of informant/owner of ether and delivered to the D. Tracker was taken into Karo’s home, other residences, and relatively private commercial structures.
2. Katz test: Had both subjective and objective expectation of privacy. Yes search.
Observation & Monitoring Public Behavior (Pen Register)
The use of a pen register installed on telephone company property to record the numbers dialed from an individual’s telephone is not a search. An individual does not generally expect the numbers he dials to remain secret, nor is it reasonable to expect privacy in information voluntarily disclosed to third-party telephone companies whose equipment completes the call.
Ex. Smith v Maryland (1979)
1. Pen register (installed central telephone facility and records all numbers dialed from a specific phone).
2. Katz test: No subjective or objective expectation of privacy. No Search.
3. People know numbers are tracked no expectation of privacy in information voluntarily turned over to 3rd parties.
1986 law: Requires court order or exigent circumstances (track longer than 48 hours)
Observation & Monitoring Public Behavior (Cellular Location)
Carpenter v. US (2018)
Police obtained cellular location info for 127 days. Accesses historical cell phone records that provide comprehensive chronicle of user’s past movement.
Gov’s acquisition of cell-site records was a search.
Info is revealing with depth, breadth, and comprehensive reach. Inescapable and automatic nature of its collection, regardless of it being gathered by 3rd party (No 3rd Party Doctrine).
Tracking person’s movements and location through extensive cell-site records is far more intrusive than precedents might have anticipated.
Observation & Monitoring Public Behavior (Financial Records)
No reasonable expectation of privacy since others have seen them. Government requesting docs from bank isn’t search.
California Bankers Ass’n v. Shultz (1974)
1. Some states find expectation of privacy in their state constitution
2. Laws do protect some information (Right to Financial Privacy Act)
3. No Search.
Dog Sniffs (Luggage)
Use of drug detection dog to sniff traveler’s luggage in public airport doesn’t constitute a search.
Illinois v. Caballes (2005)
1. Reasonable, articulable suspicion needed to justify dog sniff during legitimate traffic stop?
2. Katz test: [not walked through exactly] No subjective or objective expectation of privacy. No search.
3. No legitimate privacy interest in possessing contraband.
Dog Sniffs (Traffic Stop)
Use of drug detection dog to sniff individual’s vehicle during lawful (justified at its inception) traffic stop doesn’t constitute search under 4th Amendment as long as sniff doesn’t prolong traffic stop. If sniff occurs after completion of a lawful traffic stop, then it’s a unlawful seizure under 4th Amendment.
Rodriguez v. US (2015)
1. Dog sniff after completion of traffic stop without additional justification?
2. Unlawful seizure.
Dog Sniff (Houses)
Use of drug detection dog to investigate home and its immediate surroundings is a search. Home and curtilage are constitutionally protected areas, and bringing drug dog onto premises is an unlicensed physical intrusion.
Florida v. Jardines (2013)
1. On unverified tip, police take dog to front porch of home where he alerts.
2. Held: Gov’s use of trained police dogs to investigate home and its immediate surroundings is a “search”.
3. Purpose of police entering the porch was to conduct a search, so violated 4th Amendment.
Seizure Definition
- Exercise of control by the government over a person or thing.
- Seized when reasonable person wouldn’t feel free to leave. Or reasonable person would feel free to decline officer’s request or otherwise terminate encounter. [objective standard looked at through totality of circumstances]
- Not seized till actually yields to officer’s physical force/show of authority. Not seized during police chase.
Factors Indicating Seizure
Location of questioning
Several officers
Display of weapons
Physical touching
Language/tone of voice
Also, government has burden of proof
Arrests
Arrest = seizure (severe restriction on an individual’s freedom
Probable Cause: present when, at the time of the arrest, the officer has within his knowledge reasonably trustworthy facts and circumstances sufficient for a reasonably prudent person to believe that the suspect has/is committing a crime.