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."
The Sixth Amendment to the United States Constitution sets forth rights related to criminal prosecutions. It was ratified in 1791 as part of the United States Bill of Rights. The Supreme Court has applied all but one of this amendment's protections to the states through the Due Process Clause of the Fourteenth Amendment.
Miranda v. Arizona, 384 U.S. 436 (1966), was a landmark decision of the U.S. Supreme Court in which the Court ruled that the Fifth Amendment to the U.S. Constitution restricts prosecutors from using a person's statements made in response to interrogation in police custody as evidence at their trial unless they can show that the person was informed of the right to consult with an attorney 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.
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 exposing oneself generally, by making a statement, "to an accusation or charge of crime; to involve oneself or another [person] in a criminal prosecution or the danger thereof"..
Virginia v. Black, 538 U.S. 343 (2003), was a landmark decision of the Supreme Court of the United States in which the Court held, 5–4, that any state statute banning cross burning on the basis that it constitutes prima facie evidence of intent to intimidate is a violation of the First Amendment to the Constitution. Such a provision, the Court argued, blurs the distinction between proscribable "threats of intimidation" and the Ku Klux Klan's protected "messages of shared ideology". In the case, three defendants were convicted in two separate cases of violating a Virginia statute against cross burning. However, cross-burning can be a criminal offense if the intent to intimidate is proven. It was argued by former Solicitor General of Virginia, William Hurd.
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.
The Fifth Amendment to the United States Constitution creates several constitutional rights, limiting governmental powers focusing on criminal procedures. It was ratified, along with nine other articles, in 1791 as part of the Bill of Rights.
In criminal law, a mitigating factor, also known as an extenuating circumstance, is any information or evidence presented to the court regarding the defendant or the circumstances of the crime that might result in reduced charges or a lesser sentence. Unlike a legal defense, the presentation of mitigating factors will not result in the acquittal of a defendant. The opposite of a mitigating factor is an aggravating factor.
United States criminal procedure derives from several sources of law: the baseline protections of the United States Constitution, federal and state statutes; federal and state rules of criminal procedure ; and state and federal case law. Criminal procedures are distinct from civil procedures in the US.
Ashe v. Swenson, 397 U.S. 436 (1970), was a decision by the United States Supreme Court, which held that "when an issue of ultimate fact has once been determined by a valid and final judgment, that issue cannot again be litigated between the same parties in any future lawsuit." The Double Jeopardy Clause prevents a state from relitigating a question already decided in favor of a defendant at a previous trial. Here, the guarantee against double jeopardy enforceable through the Fifth Amendment provided that where the defendant was acquitted of robbing one victim, the government could not prosecute the criminal defendant in a second trial for a different victim in the same robbery.
Griffin v. California, 380 U.S. 609 (1965), was a United States Supreme Court case in which the Court ruled, by a 6–2 vote, that it is a violation of a defendant's Fifth Amendment rights for the prosecutor to comment to the jury on the defendant's declining to testify, or for the judge to instruct the jury that such silence is evidence of guilt.
Taylor v. Louisiana, 419 U.S. 522 (1975), was a landmark decision of the US Supreme Court which held that systematically excluding women from a venire, or jury pool, by requiring (only) them to actively register for jury duty violated the defendant's right to a representative venire. The court overturned Hoyt v. Florida, the 1961 case that had allowed such a practice.
Williams v. Florida, 399 U.S. 78 (1970), is a United States Supreme Court case in which the Court held that the Fifth Amendment does not entitle a defendant in a criminal trial to refuse to provide details of his alibi witnesses to the prosecution, and that the Sixth Amendment does not require a jury to have 12 members.
A citizen’s right to a trial by jury is a central feature of the United States Constitution. It is considered a fundamental principle of the American legal system.
Berghuis v. Thompkins, 560 U.S. 370 (2010), is a landmark decision by the Supreme Court of the United States in which the Court considered the position of a suspect who understands their right to remain silent under Miranda v. Arizona and is aware that they have the right to remain silent, but does not explicitly invoke or waive the right.
The United States Constitution contains several provisions regarding the law of criminal procedure.
Cruz v. New York, 481 U.S. 186 (1987), was a decision by the Supreme Court of the United States in which the Court held, 5–4, that the Confrontation Clause of the Constitution's Sixth Amendment barred the admission, in a joint trial, of a non-testifying codefendant's confession incriminating the defendant, even if the defendant's own confession was admitted against him.
Carter v. Kentucky was a case in which the U.S. Supreme Court held that trial judges in criminal proceedings must, upon proper request of the defendant, inform the jury of his right against self-incrimination, and that its execution may not be used against him.
Samia v. United States, 599 U.S. ___ (2023), was a United States Supreme Court case related to the Confrontation Clause of the Sixth Amendment to the United States Constitution.
