In the United States, the Miranda warning is a type of notification customarily given by police to criminal suspects in police custody advising them of their right to silence and, in effect, protection from self-incrimination; that is, their right to refuse to answer questions or provide information to law enforcement or other officials. Named for the U.S. Supreme Court's 1966 decision Miranda v. Arizona, these rights are often referred to as Miranda rights. The purpose of such notification is to preserve the admissibility of their statements made during custodial interrogation in later criminal proceedings. The idea came from law professor Yale Kamisar, who subsequently was dubbed "the father of Miranda."
Miranda v. Arizona, 384 U.S. 436 (1966), was a landmark decision of the U.S. Supreme Court in which the Court ruled that law enforcement in the United States must warn a person of their constitutional rights before interrogating them, or else the person's statements cannot be used as evidence at their trial. Specifically, the Court held that under the Fifth Amendment to the U.S. Constitution, the government cannot use a person's statements made in response to an interrogation while in police custody as evidence at the person's criminal trial unless they can show that the person was informed of the right to consult with a lawyer before and during questioning, and of the right against self-incrimination before police questioning, and that the defendant not only understood these rights but also voluntarily waived them before answering questions.
Ernesto Arturo Miranda was an American laborer whose criminal conviction was set aside in the landmark U.S. Supreme Court case Miranda v. Arizona, which ruled that criminal suspects must be informed of their right against self-incrimination and their right to consult with an attorney before being questioned by police. This warning is known as a Miranda warning. Miranda had been convicted of kidnapping, rape, and armed robbery charges based on his confession under police interrogation.
Fruit of the poisonous tree is a legal metaphor used to describe evidence that is obtained illegally. The logic of the terminology is that if the source of the evidence or evidence itself is tainted, then anything gained from it is tainted as well.
In criminal procedure law of the United States, an exigent circumstance allows law enforcement to enter a structure without a search warrant, or if they have a "knock and announce" warrant, allows them to enter without knocking and waiting for the owner's permission to enter. It must be a situation where people are in imminent danger, evidence faces imminent destruction, or a suspect's escape is imminent. Once entry is obtained, the plain view doctrine applies, allowing the seizure of any evidence or contraband discovered in the course of actions consequent upon the exigent circumstances.
In the United States, the exclusionary rule is a legal rule, based on constitutional law, that prevents evidence collected or analyzed in violation of the defendant's constitutional rights from being used in a court of law. This may be considered an example of a prophylactic rule formulated by the judiciary in order to protect a constitutional right. The exclusionary rule may also, in some circumstances at least, be considered to follow directly from the constitutional language, such as the Fifth Amendment's command that no person "shall be compelled in any criminal case to be a witness against himself" and that no person "shall be deprived of life, liberty or property without due process of law."
In criminal law, self-incrimination is the act of making a statement that exposes oneself to an accusation of criminal liability or prosecution. Self-incrimination can occur either directly or indirectly: directly, by means of interrogation where information of a self-incriminatory nature is disclosed; or indirectly, when information of a self-incriminatory nature is disclosed voluntarily without pressure from another person.
Missouri v. Seibert, 542 U.S. 600 (2004), is a decision by the Supreme Court of the United States that struck down the police practice of first obtaining an inadmissible confession without giving Miranda warnings, then issuing the warnings, and then obtaining a second confession. Justice David Souter announced the judgment of the Court and wrote for a plurality of four justices that the second confession was admissible only if the intermediate Miranda warnings were "effective enough to accomplish their object." Justice Anthony Kennedy wrote in a concurring opinion that the second confession should be inadmissible only if "the two-step interrogation technique was used in a calculated way to undermine the Miranda warning."
Massiah v. United States, 377 U.S. 201 (1964), was a case in which the Supreme Court of the United States held that the Sixth Amendment to the United States Constitution prohibits the government from eliciting statements from the defendant about themselves after the point that the Sixth Amendment right to counsel attaches.
Fellers v. United States, 540 U.S. 519 (2004), is a United States Supreme Court case regarding the Sixth Amendment's right to counsel.
Schmerber v. California, 384 U.S. 757 (1966), was a landmark United States Supreme Court case in which the Court clarified the application of the Fourth Amendment's protection against warrantless searches and the Fifth Amendment right against self-incrimination for searches that intrude into the human body. Until Schmerber, the Supreme Court had not yet clarified whether state police officers must procure a search warrant before taking blood samples from criminal suspects. Likewise, the Court had not yet clarified whether blood evidence taken against the wishes of a criminal suspect may be used against that suspect in the course of a criminal prosecution.
Berghuis v. Thompkins, 560 U.S. 370 (2010), is a landmark decision by the Supreme Court of the United States in which the Court held that, unless and until a criminal suspect explicitly states that they are relying on their right to remain silent, their voluntary statements may be used in court and police may continue to question them. The mere act of remaining silent is not sufficient to imply the suspect has invoked their rights even when the suspect actually intended their silence to have that effect. Furthermore, a voluntary reply even after lengthy silence can be construed as waiving the right to remain silent.
Cupp v. Murphy, 412 U.S. 291 (1973), was a United States Supreme Court case in which the Court upheld a murder conviction notwithstanding a challenge that the evidence upon which guilt was based was obtained in violation of the Fourth and Fourteenth Amendments of the United States Constitution. The court held that in view of the station-house detention upon probable cause, the very limited intrusion of scraping the defendant's fingernails for blood and other material, undertaken to preserve highly evanescent evidence, did not violate the Fourth and Fourteenth Amendments.
Michigan v. Mosley, 423 U.S. 96 (1975), was a United States Supreme Court case in which the Court held that a criminal suspect's assertion of his right to remain silent after a Miranda warning does not preclude the police from re-Mirandizing him and questioning him about a different crime.
New York v. Quarles, 467 U.S. 649 (1984), was a decision by the United States Supreme Court regarding the public safety exception to the normal Fifth Amendment requirements of the Miranda warning.
Brown v. Illinois, 422 U.S. 590 (1975), was a case in which the Supreme Court of the United States held that the Fourth Amendment's protection against the introduction of evidence obtained in an illegal arrest is not attenuated by reading the defendant their Miranda Rights.
Oregon v. Elstad, 470 U.S. 298 (1985), was a landmark Supreme Court of the United States case relating to Miranda warnings.
Pennsylvania v. Muniz, 496 US 582 (1990), is a U.S. Supreme Court case involving the Self-incrimination Clause of the 5th Amendment and the meaning of “testimonial” under the 5th Amendment. A drunk-driving suspect, Muniz, made several incriminating statements while in police custody, and the Supreme Court held that only one of these statements was inadmissible because it was incriminating and testimonial. This testimonial statement was the suspect’s confused response when the police officer asked him for the date when he turned six years old. The other statements were admissible because they either counted as physical evidence for 5th Amendment purposes or fell under the routine booking exception to Miranda v. Arizona.
Vega v. Tekoh, 597 U.S. ___ (2022), was a United States Supreme Court case in which the Court held, 6–3, that an officer's failure to read Miranda warnings to a suspect in custody does not alone provide basis for a claim of civil liability under Section 1983 of United States Code. In the case, the Court reviewed its previous holding of Miranda v. Arizona (1966) to determine whether respondent Carlos Vega violated plaintiff Terence Tekoh's constitutional rights by failing to read Tekoh his Miranda rights prior to interrogation. Justice Samuel Alito wrote for the six-justice majority that Tekoh's Fifth Amendment rights were not violated, as Miranda rights are "not themselves rights protected by the Constitution."
Salinas v. Texas, 570 US 178 (2013), is a landmark decision of the Supreme Court of the United States, which the court held 5-4 decision, declaring that the Fifth Amendment's self-incrimination clause does not extend to defendants who simply choose to remain silent during questioning, even though no arrest has been made nor the Miranda rights read to a defendant.
