California, United States of America
The following excerpt is from People v. Porteous, C064606 (Cal. App. 2013):
A Miranda waiver must be knowing, intelligent and voluntary. (Colorado v. Spring (1987) 479 U.S. 564, 573 [93 L.Ed.2d 954, 965].) There are two distinct dimensions to this requirement: " 'First the relinquishment of the right must have been voluntary in the sense that it was the product of a free and deliberate choice rather than intimidation, coercion, or deception. Second, the waiver must have been made with a full awareness both of the nature of the right being abandoned and the consequences of the decision to abandon it. Only if the "totality of the circumstances surrounding the interrogation" reveal both an uncoerced choice and the requisite level of comprehension may a court properly conclude that the Miranda rights have been waived.' " (Ibid., quoting Moran v. Burbine (1986) 475 U.S. 412, 421 [89 L.Ed.2d 410, 421].)
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