Appeals on the basis of factual issues, such as sufficiency of the sum total of evidence that was properly admitted, are subject to a standard of review that is in most jurisdictions deferential to the judgment of the fact-finder at trial, be that a judge or a jury. The failure of a prosecutor to disclose evidence to the defense, for example, or a violation of the defendant's constitutional rights (legal representation, right to remain silent, an open and public trial) can trigger a dismissal or re-trial. In some adversarial jurisdictions (e.g., the United States), a prosecutor cannot appeal a "not guilty" verdict (absent corruption or gross malfeasance by the court).