P1R2.docx
100 word response with 1 reference/intext citation
Due 2/7/2025
Epps
The legal concepts of reasonable suspicion, probable cause, and reasonable expe
Jun 02, 2025
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P1R2.docx
100 word response with 1 reference/intext citation
Due 2/7/2025
Epps
The legal concepts of reasonable suspicion, probable cause, and reasonable expectation of privacy shape law enforcement procedures and criminal investigations. These principles define the boundaries of search and seizure under the Fourth Amendment, ensuring a balance between security and individual rights (Carpenter v. United States, 2018). This paper explores their meanings, legal importance, and challenges in law enforcement.
a) Reasonable Suspicion
Reasonable suspicion allows officers to stop and briefly detain individuals based on specific, articulable facts suggesting criminal activity (Terry v. Ohio, 1968). This standard is lower than probable cause but must be grounded in objective reasoning (Ornelas v. United States, 1996). Courts have applied this concept flexibly, considering location, behavior, and tips from informants (Illinois v. Wardlow, 2000). However, concerns about racial profiling remain a challenge (Harris, 2021). The Supreme Court in Terry v. Ohio (1968) upheld stop-and-frisk procedures based on reasonable suspicion.
b) Probable Cause
Probable cause requires a reasonable belief, supported by evidence, that a crime has occurred (Beck v. Ohio, 1964). It is necessary for arrests, search warrants, and some warrantless searches. Courts determine probable cause by evaluating the totality of circumstances (Illinois v. Gates, 1983). The challenge lies in balancing law enforcement effectiveness with constitutional rights (Kerr, 2019). In Maryland v. Pringle (2003), the Court upheld arrests based on probable cause when contraband was found in a shared vehicle.
c) Reasonable Expectation of Privacy
The reasonable expectation of privacy doctrine, established in Katz v. United States (1967), protects individuals from unwarranted government intrusion. If a person expects privacy in a way society deems reasonable, law enforcement typically needs a warrant to search. Courts have debated privacy rights concerning digital data, GPS tracking, and third-party records (Riley v. California, 2014; Carpenter v. United States, 2018). In Carpenter (2018), the Supreme Court ruled that accessing cell phone location data without a warrant violates the Fourth Amendment.
Reasonable suspicion, probable cause, and reasonable expectation of privacy provide crucial safeguards against overreach while enabling law enforcement to investigate crimes. Courts continue refining these doctrines to address modern challenges, such as digital privacy and evolving technology.
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