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.
A polygraph, often incorrectly referred to as a lie detector test, is a device or procedure that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while a person is asked and answers a series of questions. The belief underpinning the use of the polygraph is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers; however, there are no specific physiological reactions associated with lying, making it difficult to identify factors that separate those who are lying from those who are telling the truth.
Antonin Gregory Scalia was an American jurist who served as an associate justice of the Supreme Court of the United States from 1986 until his death in 2016. He was described as the intellectual anchor for the originalist and textualist position in the U.S. Supreme Court's conservative wing. For catalyzing an originalist and textualist movement in American law, he has been described as one of the most influential jurists of the twentieth century, and one of the most important justices in the history of the Supreme Court. Scalia was posthumously awarded the Presidential Medal of Freedom in 2018, and the Antonin Scalia Law School at George Mason University was named in his honor.
Maryland v. Craig, 497 U.S. 836 (1990), was a U.S. Supreme Court case involving the Sixth Amendment. The Court ruled that the Sixth Amendment's Confrontation Clause, which provides criminal defendants with the right to confront witnesses against them, did not bar the use of one-way closed-circuit television to present testimony by an alleged child sex abuse victim.
Stanley v. Georgia, 394 U.S. 557 (1969), was a U.S. Supreme Court decision that helped to establish an implied "right to privacy" in U.S. law in the form of mere possession of obscene materials.
United States v. Virginia, 518 U.S. 515 (1996), is a landmark case in which the Supreme Court of the United States struck down the long-standing male-only admission policy of the Virginia Military Institute (VMI) in a 7–1 decision. Justice Clarence Thomas, whose son was enrolled at the university at the time, recused himself.
False evidence, fabricated evidence, forged evidence, fake evidence or tainted evidence is information created or obtained illegally in order to sway the verdict in a court case. Falsified evidence could be created by either side in a case, or by someone sympathetic to either side. Misleading by suppressing evidence can also be considered a form of false evidence ; however, in some cases, suppressed evidence is excluded because it cannot be proved the accused was aware of the items found or of their location. The analysis of evidence may also be forged if the person doing the forensic work finds it easier to fabricate evidence and test results than to perform the actual work involved. Parallel construction is a form of false evidence in which the evidence is truthful but its origins are untruthfully described, at times in order to avoid evidence being excluded as inadmissible due to unlawful means of procurement such as an unlawful search.
A rape shield law is a law that limits the ability to introduce evidence about the past sexual activity of a complaint in a sexual assault trial, or that limits cross-examination of complainants about their past sexual behaviour in sexual assault cases. The term also refers to a law that prohibits the publication of the identity of an alleged rape victim.
Cooper v. Oklahoma, 517 U.S. 348 (1996), was a United States Supreme Court case in which the Court reversed an Oklahoma court decision holding that a defendant is presumed to be competent to stand trial unless he proves otherwise by the second highest legal standard of proof, that of clear and convincing evidence, ruling that to be unconstitutional. The court said the defendant's Fourteenth Amendment rights to due process were violated.
The Double Jeopardy Clause of the Fifth Amendment to the United States Constitution provides: "[N]or shall any person be subject for the same offence to be twice put in jeopardy of life or limb..." The four essential protections included are prohibitions against, for the same offense:
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.
The Compulsory Process Clause within the Sixth Amendment to the United States Constitution lets criminal case defendants attain witnesses in their favor by way of a court-ordered subpoena. The Clause is generally interpreted as letting defendants present their own case at trial, though several specific limitations have been placed by the Supreme Court of the United States since this rule began.
The Supreme Court of the United States handed down nineteen per curiam opinions during its 2009 term, which began on October 5, 2009, and concluded October 3, 2010.
United States v. Jones, 565 U.S. 400 (2012), was a landmark United States Supreme Court case in which the court held that installing a Global Positioning System (GPS) tracking device on a vehicle and using the device to monitor the vehicle's movements constitutes a search under the Fourth Amendment.
Deck v. Missouri, 544 U.S. 622 (2005), was a United States Supreme Court case that dealt with the constitutionality of shackling a prisoner during the sentencing phase of a trial. In a 7–2 opinion delivered by Justice Breyer, the court held that it is against due process, a right prescribed by the 5th and 14th Amendments, to shackle a defendant in the sentencing portion of a trial unless the shackling relates to a specific defendant and certain state interests.
Taylor v. Illinois, 484 U.S. 400 (1988), is a United States Supreme Court decision in which the Court held that defense witnesses can be prevented from testifying under certain circumstances, even if that hurts the defense's case. Taylor was the first case to hold that there is no absolute bar to blocking the testimony of a surprise witness, even if that is an essential witness for the defendant, a limitation of the broad right to present a defense recognized in Washington v. Texas (1967).
Bell v. Cone, 535 U.S. 685 (2002), was a Supreme Court of the United States case that upheld a death sentence despite the defendant's argument that he should not be sentenced to death because he was suffering from drug-induced psychosis when he committed the crimes. Cone also argued that he was denied effective assistance of counsel because his attorney failed to present sufficient mitigating evidence during the sentencing phase of his trial and that his attorney inappropriately waived his final argument during the sentencing phase. In an 8–1 opinion written by Chief Justice William Rehnquist, the United States Supreme Court denied Cone's petition for a writ of habeas corpus. The Court held that the actions taken by Cone's attorney during the sentencing phase were "tactical decisions" and that the state courts that denied Cone's appeals did not unreasonably apply clearly established law. Justice John Paul Stevens wrote a dissenting opinion in which he argued that Cone was denied effective assistance of counsel because his attorney failed to "subject the prosecution's case to meaningful adversarial testing."
Richmond Newspapers Inc. v. Virginia, 448 U.S. 555 (1980), is a United States Supreme Court case involving issues of privacy in correspondence with the First Amendment to the United States Constitution, the freedom of the press, the Sixth Amendment to the United States Constitution and the Fourteenth Amendment to the United States Constitution. After a murder case ended in three mistrials, the judge closed the fourth trial to the public and the press. On appeal, the Supreme Court ruled the closing to be in violation of the First Amendment and Fourteenth Amendment asserting that the First Amendment implicitly guarantees the press access to public trials.
Kimmelman v. Morrison, 477 U.S. 365 (1986), was a decision of the U.S. Supreme Court that clarified the relationship of the right to effective assistance of counsel under the Sixth Amendment to other constitutional rights in criminal procedure. In this case, evidence against the defendant was probably seized illegally, violating the Fourth Amendment, but he lost the chance to argue that point due to his lawyer's ineffectiveness. The prosecution argued that the defendant's attempt to make a Sixth Amendment argument via a habeas corpus petition was really a way to sneak his Fourth Amendment argument in through the back door. The Court unanimously disagreed, and held that the Fourth Amendment issue and the Sixth Amendment issue represented different constitutional values, and had different requirements for prevailing in court, and therefore were to be treated separately by rules of procedure. Therefore, the habeas corpus petition could go forward. In its opinion, the Court also gave guidance on how to apply its decisions in Stone v. Powell and Strickland v. Washington.
303 Creative LLC v. Elenis, 600 U.S. ___ (2023), is a United States Supreme Court decision that dealt with the intersection of anti-discrimination law in public accommodations with the Free Speech Clause of the First Amendment to the United States Constitution. In a 6–3 decision, the Court found for a website designer, ruling that the state of Colorado cannot compel the designer to create work that violates her values. The case follows from Masterpiece Cakeshop v. Colorado Civil Rights Commission, 584 U.S. ___ (2018), which had dealt with similar conflict between free speech rights and Colorado's anti-discrimination laws, but was decided on narrower grounds.
