Probable Cause and Warrants Flashcards
What is probable cause for an arrest?
Where the facts and circumstances within the officer’s knowledge and of which they have reasonably trustworthy information are sufficient in themselves to warrant a reasonable caution in the belief that an offense has been or is being committed.
Fellow Officer Rule
Officers can rely on the probable cause of another officer, if and only if, the information known to Officer 1 establishes probable cause.
Collective knowledge doctrine
knowledge known to one officer, but not communicated to the other officer, is treated as if both officers have the knowledge for probable cause.
What is required in a valid search warrant?
- based on probable cause
- supported by oath or affirmation
Anguilar-Spinelli Test
An informant is telling the truth and learned the information in a reliable way if:
* basis of knowledge (self-verifying details)
* veracity prong (basis for thinking the informant is truthful)
* * credibility spur - track record of informant
* * reliability spur - reasons to think that the information is truthful absend a track record
How can the reasonableness of probable cause in a search warrant application be determined by a magistrate?
Illinois v. Gates (1983)
Reasonableness of probable cause determined by a magistrate if: based on the totality of circumstances, there’s a fair probability that evidence sought would be found.
What does Illinois v. Gates add to the Anguilar-Spinelli test?
Adds the totality of circumstances
Are informants required to be identified in probable cause or evidence suppression hearings?
McCray v. Illinois (1967)
Due process doesn’t require a judge to compel the disclosure of an informant’s identity in every probable cause or evidence suppression hearing.
Can a defendant challenge the truthfulness of statements made under oath in a supporting affidavit?
Franks v. Delaware (1978)
Yes, a defendant may challenge the truthfulness of statements made under oath in an affidavit supporting a warrant under limited circumstances.
True or false: warrantless searches and seizures inside the home are presumptively unreasonable.
Payton v. New York (1980)
True!
Warrantless searches and seizures made inside the home are presumptively unreasonable.
What is required within 48 hours of warrantless arrest?
Gerstein v. Pugh (1975)
The 4th Amendment requires a judicial determination of probable cause as a prerequisite to the extended restraint of liberty following a warrantless arrest.
What must a jurisdiction provide within 48 hours of a warrantless arrest and what are the exceptions to this?
County of Riverside v. McLaughlin (1991)
A jurisdiction must provide a probable cause determination within 48 hours of a warrantless arrest, absent a bona fide emergency or other extraordinary circumstances.
What justifies a warrantless intrusion/entry? (Warrant exceptions)
Minnesota v. Olson (1991)
A warrantless intrusion may be justified by hot pursuit of a fleeing felon, or imminent destruction of evidence, or the need to prevent the suspect’s escape, or the risk of danger to the police or other persons inside or outside of the dwelling.
Can police search a home without a warrant or warrant exception?
Steagald v. U.S. (1981)
Absent consent or exigent circumstances, a search of the home for objects/persons is not justified without a warrant.
Can police justify the use of deadly force when the suspect poses no immediate threat to police or others?
Tennessee v. Garner (1985)
No! Where the suspect poses no immediate threat to law enforcement or to others, the harm resulting from failing to apprehend the suspect doesn’t justify the use of deadly force to do so.