The Supreme Court decision that holds that no suspect, in a custodial environment, may be asked any questions until he or she has first been warned that he or she need not make any statement and advised of certain other rights is the:

The decision that established the requirement for law enforcement to inform suspects of their rights before interrogation in a custodial environment is known as the Miranda decision. This landmark ruling, issued by the U.S. Supreme Court in 1966, mandated that individuals taken into police custody must be informed of their Fifth Amendment rights against self-incrimination and their Sixth Amendment right to legal counsel. This is crucial because it protects individuals from coercive interrogations, ensuring that they are aware that they can remain silent and have the right to an attorney present.

The Miranda warning typically includes several key components: the right to remain silent, the fact that anything said can be used against the individual in court, and the right to have an attorney present during questioning, whether the individual can afford one or not. These rights are fundamental to ensuring that an individual's confession or statements are made voluntarily and with full awareness of the legal implications.

In contrast, the other decisions mentioned do not specifically address the rights of individuals in custodial interrogations or set precedent regarding the necessity of warnings. Each of those cases involves different legal principles and circumstances that do not have the same direct impact on the requirements for law enforcement prior to questioning a suspect.