Crim Pro Flashcards
Fourth Amendment: Constitutional Protection
people have right against unreasonable searches and seizures.
Any evidence obtained as a result of a Fourth Amendment will be suppressed at trial.
Fourth Amendment: Violation Requirements
- conduct at issue was engaged in by gov’t-authorized personnel [persons working on behalf of gov’t]
- there was a search or seizure
- the gov’t actor did not have a valid warrant for the search or seizure or had a valid warrant but executed it improperly and
- no exception to the warrant requirement applies
Fourth Amendment: Exclusionary Rule
If violation, evidence excluded unless exception applies.
If exception applies, evidence admitted despite a violation.
Fourth Amendment: Search
Katz
- person has a legitimate personal expectation of privacy in the area being searched by the gov’t or communications being collected by the gov’t organization AND
- this expectation is reasonable under the circumstances
Fourth Amendment: Reasonable Expectation of Privacy
- person’s home, apartment, business, hotel room
- person’s personal belongings
- private phone conversations
- cell-phone location data from a phone company for a period of seven days or more
- any items in which the person has an ownership interest
- curtilage (front yard, backyard, or property intimately tied to a home)
Curtilage Factors
- proximity of the area to the home
- whether the area is included within an enclosure surrounding the home
- the nature of use of the property and
- steps taken by the resident to protect the area from observation
Fourth Amendment: People with no REOP
- prisoners
- car passengers, in any area of the car unless (a) passenger is the driver’s spouse, (b) passenger is using a taxi service, or (c) search is of passenger’s personal belongings
- guests in another person’s home unless the person stays overnight or, sometimes, social guests or guests with a close relationship with the homeowner
Fourth Amendment: Situations with no REOP
- information voluntarily disclosed to a 3P or business even if the person believed communications would be kept private
- garbage or objects visually observable to the public
- conversations that can be overheard in public
- open fields (unoccupied or undeveloped areas outside the curtilage of the home)
- overhead flyovers and aerial photography of open fields
Fourth Amendment: Search Even If No REOP
- Kyllo: (1) police used technology that is not in general use (2) to gather information about the defendant’s home that would not otherwise be obtainable
- Constitutional Trespass Test: (1) police physically intruded onto a person’s property beyond what was socially expected or implied (2) with the intent to gather information
Fourth Amendment: Seizure
seizure of property or person occurs if
- police meaningfully interfere with a person’s possessory interest in an item OR
- person reasonably believes he is not free to leave or terminate the encounter
Fourth Amendment: Terry Stop
- police officer uses physical force on the person OR
- police officer displays a show of authority, subject submits to officer’s authority by stopping, and a reasonable person in that situation would feel he is not free to leave.
Fourth Amendment: Custody
officer arrests a person by depriving the person of freedom in a significant.
Arrests must be supported by probable cause (under the totality of the circumstances, there is a fair probability that evidence of a crime will be found in the area being searched or that the person being arrested committed a crime)
Fourth Amendment: Valid Warrant Requirements
- under the totality of the circumstances, there must be a fair probability (probable cause) that evidence of a crime will be found in the area being searched or that the person being arrested committed a crime
- person reviewing and approving the warrant application must be a neutral and detached magistrate who has no interest in the outcome of the case
- police office must sign an affidavit under oath attesting to the truth of the information in the warrant application
- warrant must include with some particularity the place and items to be searched, the individual(s) to be arrested, or the conversations to be overheard
Fourth Amendment: Anticipatory Search Warrants
can be issued if probable cause to believe evidence will be at that location at a future time after a triggering event
Fourth Amendment: Anonymous Tips and Probable Cause
courts look at:
- veracity or reliability of the tip and
- the basis of the informant’s knowledge to determine probable cause
Fourth Amendment: Knock-and-Announce Rule
officers must
- knock and announce that they are in possession of a warrant and intend to use it and
- give the homeowner a reasonable amount of time to respond before executing the warrant unless they reasonably believe it would be ineffective or it would inhibit the investigation
Fourth Amendment: Arrests in a Suspect’s Residence
an officer can execute an arrest warrant at the suspect’s home but will need a search warrant if the suspect is residing in another person’s home (i.e., probable cause the suspect will be there)
Fourth Amendment: Third Parties in Home
when executing an arrest warrant in someone’s home, the officer can
- conduct a protective sweep to determine if 3Ps are present
- detain the 3P for the duration of the search
- conduct a Terry pat-down search if the officer reasonably believes the 3P is armed and dangerous
Fourth Amendment: Methods to Execute a Warrant
officers must comport with the standards of civilized decency (e.g., not threaten a person’s health and safety).
Evidence obtained in a manner that shocks the conscience is excluded.
Fourth Amendment: Exceptions to Warrant Requirement
- exigent circumstances
- plain view / feel
- lawful arrest
- search incident to lawful arrest
- automobile exception
- consent
- Terry stop and frisk
- special-needs searches
- border search
- gov’t search
- K-12 public school
- inventory searches
- administrative searches
Fourth Amendment Warrant Exception: Exigent Circumstances
can enter home when someone is in imminent danger, evidence about to be destroyed, suspect’s escape is imminent, or officer in hot pursuit.
Officer must have probable cause to believe evidence of crime in house or that suspect in house has committed a crime.
Fourth Amendment Warrant Exception: Plain View / Feel
Plain view: can seize item if officer is
- lawfully present in the location
- sees an item in plain view
- has probable cause to believe it is contraband or evidence of crime and
- lawful right of access to the item
Plain feel: officer can seize item if officer conducts a lawful pat-down search and detects an object by touch that the officer immediately recognizes to be a weapon or contraband
Fourth Amendment Warrant Exception: Lawful Arrest
officers needs probable cause to arrest a felony suspect outside suspect’s home.
May arrest a misdemeanor suspect without a warrant only if misdemeanor committed in officer’s presence
Fourth Amendment Warrant Exception: Search Incident to Lawful Arrest
after making lawful arrest, officer can conduct:
- contemporaneous search of the arrestee’s person, including the area within immediate reach
- breath test but not a blood sample unless there is consent or exigent circumstances
- DNA test of persons arrested for serious offenses (and police may store for use in unsolved crimes)
- protective sweep of enclosed spaces where another person could be hiding, if the arrest was in a home
- search of the interior compartment of a car but not the trunk
- search of the exterior of a cell phone but not digital data
Fourth Amendment Warrant Exception: Automobile Exception
can search motor vehicle, including the trunk, if there is probable cause to believe that contraband or evidence of a crime will be found
EXCEPTION: does not apply if (1) automobile has been parked in curtilage of a home for some period of time, even an hour OR (2) officer only has probable cause to believe the contraband will be found in a particular container inside the vehicle (and can only search the container)
Fourth Amendment Warrant Exception: Consent
officer can search specific area if the owner, or someone who has authority or apparent authority, gives consent freely and voluntarily
Nullified if officer uses coercion or duress, falsely claims has a search warrant, or search warrant is invalid.
Consent can be revoked at any time.
Co-tenant or landlord may consent to searches of common areas but not to another tenant’s room or apartment unless co-tenant is parent of a minor or adult child. If other person is present and objects, no consent.
Fourth Amendment Warrant Exception: Terry Stop
if reasonable suspicion (more than a hunch or inchoate suspect) that suspect has engaged in or will engage in criminal activity, then officer can briefly detain the suspect, ask the suspect to exit the vehicle, and ask questions.
Fourth Amendment Warrant Exception: Terry Frisk
if an officer has a reasonable suspicion that suspect is armed and dangerous, officer can conduct a pat-down of the suspect’s outer clothing.
- limited to time reasonably required to handle matter for which stop was made
- does not apply to searches of individual’s home
- no limitations on lawful terry stops conduct for purpose of investigating other, unrelated crimes
- after lawful terry stop, can search interior compartment if reasonable suspicion the driver has a weapon in the car. Can only search trunk with probable cause.
Fourth Amendment Warrant Exception: Special-Needs Searches
includes DUI checkpoints, airport screenings, and metal detectors at public buildings. Require no probable cause or reasonable suspicion IF:
- non-criminal investigative purpose (safety)
- intrusion not too invasive after balancing the gov’t’s interest against individual’s private interest
- some data demonstrating the search’s effectiveness
- police have clearly identified the criteria for determining which persons will be stopped
Fourth Amendment Warrant Exception: Border Search
border agents can conduct routine searches near or at a physical border or at international airport terminals without probable cause or reasonable suspicion.
Need reasonable suspicion to do a more invasive, nonroutine search.
Fourth Amendment Warrant Exception: Gov’t Search
gov’t employers can conduct reasonable searches of an employee’s desk, filing cabinets, office, and work equipment if the search is
- non-investigatory and conducted for work-related purposes OR
- conducted as part of an investigation of a reasonable suspicion of work-related misconduct
Fourth Amendment Warrant Exception: K-12 Public School
officers may search the belongings and person of a student if they have reasonable grounds to believe that the search will lead to evidence that the student is violating the law or school rules
Fourth Amendment Warrant Exception: Inventory Searches
lawfully impounded property may be conducted without a warrant