In which case did the U.S. Supreme Court uphold stop and frisk procedures?

The U.S. Supreme Court upheld stop and frisk procedures in the case of Terry v. Ohio. This landmark decision established that law enforcement officers have the authority to perform a limited, brief stop of a person if they have reasonable suspicion that the individual is involved in criminal activity. Additionally, if the officer has a reasonable belief that the person may be armed and dangerous, they are allowed to conduct a frisk for weapons.

The ruling emphasized the balance between the government’s interest in preventing crime and ensuring officer safety, against the individual’s Fourth Amendment rights against unreasonable searches and seizures. The Terry v. Ohio case set a critical precedent for the legality of stop and frisk practices, allowing police to act on a standard lower than probable cause, while ensuring some level of protection for citizens' rights. The outcome of this case significantly shaped law enforcement protocols and practices across the United States.