In legal terms, a plea is simply an answer to a claim made by someone in a criminal case under common law using the adversarial system. Colloquially, a plea has come to mean the assertion by a defendant at arraignment, or otherwise in response to a criminal charge, whether that person pleaded or pled guilty, not guilty, nolo contendere, no case to answer, or Alford plea.
United States v. Dominguez Benitez, 542 U.S. 74 (2004), was a United States Supreme Court case in which the Court ruled that, in a criminal proceeding in federal court, a defendant who does not alert the district court to a possible violation of Rule 11 of the Federal Rules of Criminal Procedure must show on appeal that the violation affirmatively affected his rights in order to obtain reversal of his conviction by guilty plea. Rule 11, which pertains to criminal prosecutions in United States federal courts only, governs the offering of plea bargains to criminal defendants and the procedures district courts must employ to ensure that the defendant knows of and properly waives his trial-related constitutional rights.
Blakely v. Washington, 542 U.S. 296 (2004), held that, in the context of mandatory sentencing guidelines under state law, the Sixth Amendment right to a jury trial prohibited judges from enhancing criminal sentences based on facts other than those decided by the jury or admitted by the defendant. The landmark nature of the case was alluded to by Justice Sandra Day O'Connor, who characterized the decision as a "Number 10 earthquake".
Apprendi v. New Jersey, 530 U.S. 466 (2000), is a landmark United States Supreme Court decision with regard to aggravating factors in crimes. The Court ruled that the Sixth Amendment right to a jury trial, incorporated against the states through the Fourteenth Amendment, prohibited judges from enhancing criminal sentences beyond statutory maxima based on facts other than those decided by the jury beyond a reasonable doubt. The decision has been a cornerstone in the modern resurgence in jury trial rights. As Justice Scalia noted in his concurring opinion, the jury-trial right "has never been efficient; but it has always been free."
Strauder v. West Virginia, 100 U.S. 303 (1880), was a landmark decision of the Supreme Court of the United States about racial discrimination and United States constitutional criminal procedure. Strauder was the first instance where the Supreme Court reversed a state court decision denying a defendant's motion to remove his criminal trial to federal court pursuant to Section 3 of the Civil Rights Act of 1866.
North Carolina v. Alford, 400 U.S. 25 (1970), was a case in which the Supreme Court of the United States affirmed that there are no constitutional barriers in place to prevent a judge from accepting a guilty plea from a defendant who wants to plead guilty while still protesting his innocence under duress as a detainee status. This type of plea has become known as an Alford plea, differing slightly from the nolo contendere plea in which the defendant agrees to being sentenced for the crime, but does not admit guilt. Alford died in prison in 1975.
In United States law, ineffective assistance of counsel (IAC) is a claim raised by a convicted criminal defendant asserting that the defendant's legal counsel performed so ineffectively that it deprived the defendant of the constitutional right guaranteed by the Assistance of Counsel Clause of the Sixth Amendment to the United States Constitution. Ineffectiveness claims may only be brought where the defendant had the right to counsel, ordinarily during the critical stages of a prosecution.
United States v. Booker, 543 U.S. 220 (2005), is a United States Supreme Court decision on criminal sentencing. The Court ruled that the Sixth Amendment right to jury trial requires that other than a prior conviction, only facts admitted by a defendant or proved beyond a reasonable doubt to a jury may be used to calculate a sentence exceeding the prescribed statutory maximum sentence, whether the defendant has pleaded guilty or been convicted at trial. The maximum sentence that a judge may impose is based upon the facts admitted by the defendant or proved to a jury beyond a reasonable doubt.
Almendarez-Torres v. United States, 523 U.S. 224 (1998), was a decision by the United States Supreme Court which confirmed that a sentencing enhancement based on a prior conviction was not subject to the Sixth Amendment requirement for a jury to determine the fact beyond a reasonable doubt.
Dixon v. United States, 548 U.S. 1 (2006), was a United States Supreme Court case concerning the level of proof required to establish the affirmative defense of duress in a federal criminal case.
Godinez v. Moran, 509 U.S. 389 (1993), was a landmark decision in which the U.S. Supreme Court ruled that if a defendant was competent to stand trial, they were automatically competent to plead guilty, and thereby waive the panoply of trial rights, including the right to counsel.
Mitchell v. United States, 526 U.S. 314 (1999), is a United States Supreme Court case that considered two Fifth Amendment privileges related to a criminal defendant’s rights against self-incrimination in a Federal District Court. The court ruled that a defendant who waives the guilty plea does not also waive the privilege during the sentencing phase of the trial, and that the court cannot draw an adverse inference from the defendant's silence when determining facts related to the crime which affect the severity of the sentence.
Rummel v. Estelle, 445 U.S. 263 (1980), was a United States Supreme Court case in which the Court upheld a life sentence with the possibility of parole under Texas' three strikes law for a felony fraud crime, where the offense and the defendant's two prior offenses involved approximately $230 of fraudulent activity.
Lefkowitz v. Newsome, 420 U.S. 283 (1975), is a U.S. Supreme Court case which held that when state law permits a defendant to plead guilty without giving up his right to judicial review of specified constitutional issues, such as the lawfulness of a search or the voluntariness of a confession, the defendant is not prevented from pursuing those constitutional claims in a federal habeas corpus proceeding.
United States v. Hayes, 555 U.S. 415 (2009), is a United States Supreme Court case interpreting Section 921(a)(33)(A) of the federal Gun Control Act of 1968, as amended in 1996. The Court held that a domestic relationship is not necessarily a defining element of the predicate offense to support a conviction for possession of a firearm by a person previously convicted of a misdemeanor crime of domestic violence.
Brady v. United States, 397 U.S. 742 (1970), was a United States Supreme Court case in which the Court refused to hold that large sentencing discounts and threats of the death penalty are sufficient evidence of coercion.
Daniels v. United States, 531 U.S. 374 (2001), was a decision by the Supreme Court of the United States involving the Armed Career Criminal Act. The Court ruled, in a 5–4 decision, that a defendant sentenced under that Act could not challenge previous convictions on appeal that were used to increase his new sentence.
Ludwig v. Massachusetts, 427 U.S. 618 (1976), was a case in which the Supreme Court of the United States held that the Massachusetts two-tier court system did not deprive Ludwig of his U.S. Const., Amend. XIV right to a jury trial and did not violate the double jeopardy clause of the U.S. Const., Amend. V.
Lafler v. Cooper, 566 U.S. 156 (2012), was a United States Supreme Court case in which the Court clarified the Sixth Amendment standard for reversing convictions due to ineffective assistance of counsel during plea bargaining. The Court ruled that when a lawyer's ineffective assistance leads to the rejection of a plea agreement, a defendant is entitled to relief if the outcome of the plea process would have been different with competent advice. In such cases, the Court ruled that the Sixth Amendment requires the trial judge to exercise discretion to determine an appropriate remedy.
Missouri v. Galin E. Frye, 566 U.S. 134 (2012), was a case in which the United States Supreme Court ruled that attorneys of criminal defendants have the duty to communicate plea bargains offered to the accused.
