Which case established the requirement to inform suspects of their rights?

Which case established the requirement to inform suspects of their rights?

• A. Miranda v. Arizona
• B. Mapp v. Ohio
• C. Gideon v. Wainwright
• D. Roe v. Wade

Answer: (A)

The main idea here is the requirement to inform a suspect of their rights before custodial interrogation. In this line of ruling, the Supreme Court held that police must give warnings about the right to remain silent and the right to counsel, and that anything the suspect says can be used against them, before questioning takes place. These Miranda warnings are designed to protect the Fifth Amendment right against self-incrimination and the Sixth Amendment right to counsel, ensuring that statements made during interrogation are truly voluntary. If a suspect is questioned in custody without receiving these warnings, the statements may be suppressed at trial under the exclusionary rule. This rule emerged because the confession in the case was obtained during a custodial interrogation without the required warnings, prompting the widespread practice of delivering the Miranda notices. The other cases address different protections: Mapp v. Ohio deals with the exclusionary rule for illegal searches, Gideon v. Wainwright guarantees the right to counsel, and Roe v. Wade concerns abortion rights. Thus, the case that established the requirement to inform suspects of their rights is Miranda v. Arizona.