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Napue v. Illinois, 360 U.S. 264 (1959), was a United States Supreme Court case in which the Court held that the knowing use of false testimony by a prosecutor in a criminal case violates the Due Process Clause of the Fourteenth Amendment to the United States Constitution, even if the testimony affects only the credibility of the witness and does not directly relate to the innocence or guilt of ...
Giglio v. United States, 405 U.S. 150 (1972), is a United States Supreme Court case in which the Court held that the prosecution's failure to inform the jury that a witness had been promised not to be prosecuted in exchange for his testimony was a failure to fulfill the duty to present all material evidence to the jury, and constituted a violation of due process, requiring a new trial. [1]
Davis v. Washington, 547 U.S. 813 (2006), was a case decided by the Supreme Court of the United States and written by Justice Antonin Scalia that established the test used to determine whether a hearsay statement is "testimonial" for Confrontation Clause purposes.
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.
United States, 445 U.S. 40 (1980), is a United States Supreme Court case involving the spousal privilege and its application in the law of evidence. In it, the Court held that the witness-spouse alone has a privilege to refuse to testify adversely; the witness may be neither compelled to testify nor foreclosed from testifying.
The United States Supreme Court held that the use of the spouse's recorded statement made during police interrogation violated the defendant's Sixth Amendment right to be confronted with the witnesses against the defendant where the spouse, because of the state law marital privilege, did not testify at the trial and so was unavailable.
Melendez-Diaz v. Massachusetts, 557 U.S. 305 (2009), [1] is a United States Supreme Court case in which the Court held that it was a violation of the Sixth Amendment right of confrontation for a prosecutor to submit a chemical drug test report without the testimony of the person who performed the test. [2]
Branzburg v. Hayes, 408 U.S. 665 (1972), was a landmark decision of the US Supreme Court invalidating the use of the First Amendment as a defense for reporters summoned to testify before a grand jury. The case was argued February 23, 1972, and decided June 29 of the same year. [1] The reporters lost their case by a vote of 5–4.