Crim Pro Flashcards
Exclusionary Rule
Prohibits the introduction of evidence obtained in violation of D’s constitutional rights in a criminal trial
Fruit of the Poisonous Tree
Evidence derived or obtained from illegal govt. conduct is excludable against D. Arises when illegal police action leads to evidence.
Exceptions to Exclusionary Rule
Illegally obtained evidence is admissible if govt. can “break the chain” between the illegal govt. conduct and the seized evidence; three ways to break the chain:
Independent Source
Inevitable Discovery
Intervening Acts of Free Will
Independent Source Doctrine
Govt. had an independent source for obtaining the evidence, i.e., independent from the original illegality
Inevitable Discovery
Govt. would have discovered
illegally derived evidence even without illegal conduct
Intervening Acts of Free Will
After initial illegality,
D led police to the evidence by his own free will
Remedy for Exclusionary Rule
Harmless error review
• For admission of illegally-seized evidence to be upheld on appeal, the govt. must show that it was harmless beyond a
reasonable doubt
Exclusionary Rule Does Not Apply To:
1) Grand jury proceedings, civil proceedings, parole hearings, or administrative cases
2) Violations of the “knock and announce rule” in executing search warrants
3) Evidence seized as a result of Miranda violations
Excluded Evidence and Impeachment:
• Confessions resulting from Miranda violations or illegally
obtained evidence may be used to impeach D’s testimony at trial (but only D’s testimony, not all testimony)
Gov’t good-faith defenses to Exclusionary Rule:
Illegally obtained evidence will not be excluded if the govt.
demonstrates that it relied in good faith on either:
a) A reasonably relied upon but defective search warrant
b) A judicial opinion or statute that was later changed or
declared invalid
Arrest
An arrest occurs when police take an individual into custody
for purposes of criminal prosecution or interrogation
Requirements for Arrest
Probable cause is always required for any valid arrest
• Probable cause = trustworthy facts or knowledge sufficient
for a reasonable person to believe that the suspect has
committed or is planning to commit a crime
Arrest Warrants
Warrants are rarely required for arrests
• Unless an arrest occurs in the arrestee’s own home, the govt. does not need a warrant to make an arrest
• A warrant is not required for an emergency arrest occurring in the arrestee’s home
Detention
A governmental seizure of a person that is lesser than an arrest
Terry Stop & Frisk Detention
Requires reasonable suspicion
Automobile Stop Detention
Requires reasonable suspicion
Stationhouse Detention
Probable cause required to compel a person to enter a
govt. location for fingerprinting, questioning, etc.
Detention to Obtain Search Warrant
» Requires probable cause
» If police have probable cause to believe a suspect has contraband hidden in her home, they may prevent her from entering her home for a reasonable time while they obtain a search warrant
• Purpose must be to prevent destruction of evidence
Detention of Occupants of a Premises
If police have a valid warrant to search premises, they may detain occupants for duration of the proper search
Validity of Search & Seizure
Govt. searches and seizures of evidence must be reasonable
under the 4th Amend, which requires a valid search warrant,
unless one of six exceptions applies
Gov’t Action
4th Amend. only applies to govt. conduct (direct or
authorized); does not protect against private conduct
Standing
D must have a reasonable expectation of privacy in the
thing or place to be searched
Exceptions to Search Warrant
1) Search incident to arrest
2) Plain view search
3) Automobile search
4) Valid consent to search
5) Exigent circumstances
6) Stop & frisk
Reasonable Expectation of Privacy
4th Amend. only applies if a person has a reasonable expectation of privacy (REOP) regarding the thing or place searched and/or the items seized
• Standing to challenge a govt. search requires a REOP
• REOP is determined by the totality of the circumstances