In law, cross-examination is the interrogation of a witness called by one's opponent. It is preceded by direct examination and may be followed by a redirect. Redirect examination, performed by the attorney or pro se individual who performed the direct examination, clarifies the witness' testimony provided during cross-examination including any subject matter raised during cross-examination but not discussed during direct examination. Recross examination addresses the witness' testimony discussed in redirect by the opponent. Depending on the judge's discretion, opponents are allowed multiple opportunities to redirect and recross examine witnesses.
Brady disclosure consists of exculpatory or impeaching information and evidence that is material to the guilt or innocence or to the punishment of a defendant. The term comes from the 1963 U.S. Supreme Court case Brady v. Maryland, in which the Supreme Court ruled that suppression by the prosecution of evidence favorable to a defendant who has requested it violates due process.
In United States federal law, the Daubert standard is a rule of evidence regarding the admissibility of expert witness testimony. A party may raise a Daubert motion, a special motion in limine raised before or during trial, to exclude the presentation of unqualified evidence to the jury. The Daubert trilogy are the three United States Supreme Court cases that articulated the Daubert standard:
Witness impeachment, in the law of evidence of the United States, is the process of calling into question the credibility of an individual testifying in a trial. The Federal Rules of Evidence contain the rules governing impeachment in US federal courts.
Clinton v. Jones, 520 U.S. 681 (1997), was a landmark United States Supreme Court case establishing that a sitting President of the United States has no immunity from civil law litigation, in federal court, against him or her, for acts done before taking office and unrelated to the office. In particular, there is no temporary immunity, so it is not required to delay all federal cases until the President leaves office.
Falsus in uno, falsus in omnibus is a Latin maxim meaning "false in one thing, false in everything." At common law, it is the legal principle that a witness who testifies falsely about one matter is not credible to testify about any matter. Although many common law jurisdictions have rejected a categorical application of the rule, the doctrine has survived in some American courts.
Henry Warren Goddard was a United States district judge of the United States District Court for the Southern District of New York.
In the United States, the Jencks Act provides that the prosecutor is required to produce a verbatim statement or report made by a government witness or prospective government witness, but only after the witness has testified.
Bronston v. United States, 409 U.S. 352 (1973), is a seminal United States Supreme Court decision strictly construing the federal perjury statute. Chief Justice Warren Burger wrote for a unanimous Court that responses to questions made under oath that relayed truthful information in and of themselves but were intended to mislead or evade the examiner could not be prosecuted. Instead, the criminal-justice system had to rely on more carefully worded follow-up questions.
The Fifth Amendment (Amendment V) to the United States Constitution addresses criminal procedure and other aspects of the Constitution. It was ratified, along nine other articles, in 1791 as part of the Bill of Rights. The Fifth Amendment applies to every level of the government, including the federal, state, and local levels, in regard to a US citizen or resident of the US. The Supreme Court furthered the protections of this amendment through the Due Process Clause of the Fourteenth Amendment.
Jencks v. United States, 353 U.S. 657 (1957), is a U.S. Supreme Court case.
United States v. Weitzenhoff, 35 F.3d 1275 is a legal opinion from the Ninth Circuit Court of Appeals that addresses the confusing mens rea requirement of a federal environmental law that imposed criminal sanctions on certain polluters. The main significance of the court's opinion was that it interpreted the word "knowingly" in the statute to mean a general awareness of the wrongfulness of one's actions or the likelihood of illegality, rather than an actual knowledge of the statute being violated. Circuit Court Judge Betty Binns Fletcher authored the majority's legal opinion in this case.
Tome v. United States, 513 U.S. 150 (1995), was a case decided by the Supreme Court of the United States that held that under Federal Rules of Evidence Rule 801(d)(1)(B), a prior consistent statement is not hearsay only if the statement was made before the motive to fabricate arose.
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. This is the case even if the failure to disclose was a matter of negligence and not intent. The case extended the Court's holding in Brady v. Maryland, requiring such agreements to be disclosed to defense counsel. As a result of this case, the term Giglio material is sometimes used to refer to any information pertaining to deals that witnesses in a criminal case may have entered into with the government.
Glasser v. United States, 315 U.S. 60 (1942), was a landmark decision of the US Supreme Court on two issues of constitutional criminal procedure. Glasser was the first Supreme Court decision to hold that the Assistance of Counsel Clause of the Sixth Amendment required the reversal of a criminal defendant's conviction if his lawyer's representation of him was limited by a conflict of interest.
United States v. Brechner, 99 F.3d 96, is a Second Circuit Court of Appeals decision holding that a defendant's failure to provide entirely truthful information pursuant to a plea agreement is a legitimate basis for prosecutors to revoke a promise to move for a downward departure at sentencing.
Ellis v. United States of America, 416 F.2d 791, is a case decided by the United States Court of Appeals, District of Columbia Circuit, in 1969. It addressed the question of a witness's refusal to testify on Fifth Amendment grounds. The court concluded that when a non-indicted witness who has waived their Fifth Amendment privilege by testifying voluntarily before a grand jury and with knowledge of their privilege, their waiver extends to a subsequent trial based on an indictment returned by the grand jury that heard their testimony.
Cone v. Bell, 556 U.S. 449 (2009), was a case in which the United States Supreme Court held that a defendant was entitled to a hearing to determine whether prosecutors in his 1982 death penalty trial violated his right to due process by withholding exculpatory evidence. The defendant, Gary Cone, filed a petition for postconviction relief from a 1982 death sentence in which he argued that prosecutors violated his rights to due process under the Fourteenth Amendment by withholding police reports and witness statements that potentially could have shown that his drug addiction affected his behavior. In an opinion written by Justice John Paul Stevens, the Supreme Court held that Cone was entitled to a hearing to determine whether the prosecution's failure to disclose exculpatory evidence violated Cone's right to due process; the Court noted that "the quantity and the quality of the suppressed evidence lends support to Cone’s position at trial that he habitually used excessive amounts of drugs, that his addiction affected his behavior during his crime spree". In 2016, Gary Cone died from natural causes while still sitting on Tennessee's death row.
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 the defendant.
