Which case applied Weeks v. U.S. to trials in the state courts?

Which case applied Weeks v. U.S. to trials in the state courts?

• A. Miranda v. Arizona
• B. Mapp v. Ohio
• C. Katz v. United States
• D. Terry v. Ohio

Answer: (B)

The essential idea is extending protections from federal trials to state trials through incorporation. Weeks v. U.S. established the exclusionary rule, which bars evidence obtained in violation of the Fourth Amendment from being used in federal prosecutions. To ensure those protections applied across the entire country, the Supreme Court used the Fourteenth Amendment to incorporate this rule so it would bind state and local courts as well. That step is what happened in Mapp v. Ohio, where the Court held that the exclusionary rule applies to searches and seizures conducted by state and local police, so illegally obtained evidence cannot be used in state prosecutions. This is why Mapp v. Ohio is the case that applied Weeks to trials in state courts. The other listed cases focus on different Fourth Amendment issues—interrogation warnings (Miranda), privacy expectations in searches (Katz), and stop-and-frisk standards (Terry)—and do not involve extending the Weeks rule to the states.

The essential idea is extending protections from federal trials to state trials through incorporation. Weeks v. U.S. established the exclusionary rule, which bars evidence obtained in violation of the Fourth Amendment from being used in federal prosecutions. To ensure those protections applied across the entire country, the Supreme Court used the Fourteenth Amendment to incorporate this rule so it would bind state and local courts as well. That step is what happened in Mapp v. Ohio, where the Court held that the exclusionary rule applies to searches and seizures conducted by state and local police, so illegally obtained evidence cannot be used in state prosecutions. This is why Mapp v. Ohio is the case that applied Weeks to trials in state courts. The other listed cases focus on different Fourth Amendment issues—interrogation warnings (Miranda), privacy expectations in searches (Katz), and stop-and-frisk standards (Terry)—and do not involve extending the Weeks rule to the states.