What US Supreme Court decision set forth objective standards for questioning by police?

The decision that set forth objective standards for questioning by police is Miranda v. Arizona. This landmark case established the requirement that individuals in custody must be informed of their rights before being interrogated by law enforcement. Specifically, the ruling mandates that police must inform suspects of their right to remain silent and their right to an attorney. This decision is crucial because it aims to protect individual rights against coercive interrogation practices and ensures that any statements made by a suspect are made voluntarily and with an understanding of their rights.

Other cases mentioned, while significant in their own contexts, do not primarily focus on establishing standards for police questioning. Graham v. Connor addresses the use of excessive force by police, while Tennessee v. Garner pertains to the use of deadly force in the apprehension of fleeing felons. Sherman v. California is not a recognized landmark case related to these issues. Therefore, Miranda v. Arizona is the accurate answer in establishing the framework for police questioning protocols.