What does the Fourth Amendment apply to?
Gov’t action
NOT private action
When is a person seized?
when, as the result of government action a reasonable person in his position would not feel free to leave, or otherwise terminate the police encounter
Seizure when suspect is in naturally confined location
whether a reasonable person would feel free to terminate the encounter with police
What is a Terry Stop?
a “brief investigatory seizure”
Terry Stop vs. Arrest
Duration and purpose
Permitted duration for Terry Stop
The time necessary to confirm or deny suspicion
Confirm = gives rise to probable cause
Deny = seizure must end
When is property seized?
What is a “search?”
When do police not have Knock and Announce?
Knock and Announce Rule
Unless exigent circumstances exist, the arresting officers must “knock and announce” their identity before entering to make the arrest
Reasonable Expectation of Privacy
When is there no expectation of privacy?
There is no REP in something a person knowingly exposes to the public
Police Animals & Searches
Police use of animals trained to detect only contraband does not qualify as a search,
UNLESS the police commit an investigatory trespass to get animals to the location of detection
Things ∆ does not have a reasonable expectation of privacy in because they’be been knowingly exposed to the public:
4th Amendment requirement for searches and seizures
they must be reasonable
Requirements for getting valid warrant
Violation of the Knock and Announce Rule
Violates the 4th Amendment but does not trigger Exclusionary Rule
When is probable cause satisfiied?
Satisfying Probable Cause
Totality of the Circumstances Test
The relevant factors taken into account are:
Arresting a suspect in public
Need probable cause, do not need warrant
Exceptions to Warrant Requirement
Situations where exigent circumstances allow officer to enter suspect’s home to arrest suspect without warrant:
Searches incident to a Lawful Arrest
To protect the arresting police officers and to prevent the destruction of evidence, the defendant’s person, as well as the area within his immediate control (usually referred to as the wingspan) may be searched incident to a lawful arrest.
*includes a cursory scan or “protective sweep” of adjoining rooms, and the entire domicile may be scanned, provided there is reasonable suspicion of an armed accomplice
Searches incident to a Lawful Arrest
In A Car
the police may search: