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20 Cards in this Set

  • Front
  • Back

4th amendment

right to be free from unreasonable search and seizure without warrant, and no warrant shall be issued w/o probable cause supported by oath or affirmation, describing the pace to be searched and the persons or things to be seized.


1. reasonableness


2. warrant clause

Exclusionary Rule

evidence obtained in violation of 4th amendment is ordinarily not admissible in a criminal trial. Can still bring charges against ∆.




Goal - deter police misconduct

Good faith exception

evidence obtained by officers acting in reasonable reliance on a search warrant issued by a detached and neutral magistrate but ultimately found to be unsupported by probable cause is admissible



Test: what is objectively reasonable for a police officer to do?




Goad: Deter police misconduct



Silver Platter Doctrine (no longer valid)

State could search illegally and provide evidence found to feds who could use it as long as they did not participate in the search

Frank's Doctrine

When a warrant affidavit is demonstrated to be false and intentionally or recklessly included, it is invalid

No Good Faith Exception

1. Frank's Doctrine


2. Magistrate abandons objective role


3. Warrant is facially deficient - no description of place/things


4. Lacks probable cause

Good faith reliance on statute

Not subject to exclusionary rule. Don't want officer's trying to determine constitutionality of statutes.

Knock and Announce Rule

LEO must announce presence and provide residents an opportunity to open the door.




N/A when:


-threat of physical violence


-evidence may be destroyed if advance notice given


-knocking and announcing would be futile

Violation of Knock and Announce

Does not require suppression of evidence because goal of rule is to prevent violence, PD, and impositions on privacy, not police searches with valid warrants.

Good faith reliance on computer error

No 4th amendment violation when isolated negligence and "not systematic error or reckless disregard of constitutional requirements"




N/A to systematic recurring negligence

Privacy Rationale

4th amendment violation can occur when there is an infringement upon a justified expectation of privacy

Katz Test

1. expectation to privacy (subjective)


2. does society accept the area as a private place? (objective)

Public Exposure

If person knowingly exposes to the public, even in him or office, not subject to 4th amendment protection

Factors of Search

1. invasion of an expectation of privacy; and


2. trespass

Open Fields Doctrine

No 4th amendment protection in open fields (outside area of property owner's curtilage) even when trespassing signs are posted



Visible to Naked Eye

No need for warrant - police traveling in public airways ok. No violation of law and no interference with ∆'s normal use.

GPS Tracking

unlawful search under 4th amendment because trespass onto personal property

Curtilage

Area immediately surrounding and associated with the home. Includes the porch.




License to enter can be inferred from habits of the country. LEO can't exceed extent of that license without a warrant.

Third Party Conversation

No expectation of privacy when voluntarily speaking with another person so no problem with recording conversation.

Third Party Searches

Valid warrant allows search of ANY property where there is probable cause to believe that the fruits or evidence of crime will be found. Irrelevant that 3rd party is not a suspect.