What case affirmed the necessity of a warrant for wiretaps?

• A. Katz v. United States
• B. Miranda v. Arizona
• C. Roe v. Wade
• D. United States v. Nixon

Answer: (A)

Katz v. United States is a landmark Supreme Court case that established the requirement for a warrant to conduct wiretaps, reinforcing the protection of privacy under the Fourth Amendment. In this case, the Court ruled that the government's monitoring of Katz's phone conversations without a warrant constituted a violation of his reasonable expectation of privacy. The decision clarified that the Fourth Amendment protects people, not just places, which means that government actions that infringe on individual privacy must be supported by a warrant based on probable cause.

This ruling has had a significant impact on how law enforcement approaches surveillance and wiretapping, emphasizing the importance of judicial oversight and the protection of citizens' rights against unwarranted government intrusion.