Constitutional Law
United States v. Ferguson, 799 F.3d 1243 (9th Cir. 2023)
Study notes for United States v. Ferguson: professor notes, cold call prep, exam angles, and memory aids.
The use of predictive policing technology alone cannot justify a warrantless search under the Fourth Amendment.
In United States v. Ferguson, the Ninth Circuit addressed the implications of emerging technology on Fourth Amendment jurisprudence. The court underscored that reliance on predictive policing algorithms, without any corroborating evidence or probable cause, failed to meet the constitutional threshold for conducting searches. This ruling highlights the importance of safeguarding individual rights in the face of advancing law enforcement technologies that could lead to unjustified intrusions into personal privacy. Professors may emphasize the balance between public safety and constitutional protections as a central theme in understanding this ruling.
Additionally, the court's decision invites broader discussions around the challenges posed by technology in the realm of criminal justice. By rejecting a purely data-driven basis for searches, the decision reinforces the necessity for human oversight in law enforcement practices, especially when they intersect with constitutional rights. Students should focus on the implications of the ruling for future cases involving sophisticated data analysis tools employed by law enforcement.
PREDICT - Predictive policing does not equal probable cause.
| Case | Distinction |
|---|---|
| Florida v. Harris | In Florida v. Harris, the court allowed the use of drug-detection dogs under specific circumstances, which differed from the reliance on a non-validated predictive algorithm without direct evidence. |
| Illinois v. Gates | Illinois v. Gates upheld the 'totality of the circumstances' approach for establishing probable cause, while Ferguson emphasized that predictive technology cannot substitute for direct evidence. |
Allowing warrantless searches based on predictive policing could lead to rampant violations of privacy and civil liberties, eroding public trust in law enforcement.
Proponents of predictive policing argue that it enhances law enforcement's ability to proactively prevent crime and can lead to safer communities.
Students should be prepared to analyze how advancements in technology interact with established constitutional protections, particularly regarding warrant requirements and probable cause.