Prosecutorial misconduct

In jurisprudence, prosecutorial misconduct is "an illegal act or failing to act, on the part of a prosecutor, especially an attempt to sway the jury to wrongly convict a defendant or to impose a harsher than appropriate punishment." It is similar to selective prosecution. Prosecutors are bound by a sets of rules which outline fair and dispassionate conduct.

Prosecutors are given discretion about how they conduct their business. However, while some practices are not illegal, they may be seen as unethical and/or abusive and in need of reform, particularly by defendants and criminal defense attorneys:

In late 1993, the 6th US Circuit Court of Appeals ruled that John Demjanjuk had been a victim of prosecutorial misconduct during a 1986 trial in which federal prosecutors withheld evidence. Demjanjuk's sentence was overturned, but he lost when his case was retried.

In the 1995 murder trial of O. J. Simpson, the defense argued that Los Angeles Police Department detective Mark Fuhrman had planted evidence at the crime scene. Although Fuhrman denied the allegations, Simpson was found not guilty, although he was later held liable for the deaths in a civil suit filed by the families of the victims. In USA Today (August 24, 1995), Francis Fukuyama stated, "[Such defenses lead to] a distrust of government and the belief that public authorities are in a vast conspiracy to violate the rights of individuals." However, such misconduct may actually be widespread in the United States. "It’s a result-oriented process today, fairness be damned," Robert Merkle, former U.S. Attorney for the Middle District of Florida, said. Prosecutors are protected from civil liability even when they knowingly and maliciously break the law in order to secure convictions, and the doctrine of harmless error can be used by appellate courts to uphold convictions despite such illegal tactics, which some argue gives prosecutors few incentives to comply with the law.

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