Misprision of a felony is a federal crime in the United States that involves the deliberate concealment of a felony (a serious crime) by someone who did not participate in the crime itself. In other words, if a person knows that a felony has been committed and actively hides this fact from authorities, they can be charged with misprision of a felony.
Under 18 U.S.C. § 4, misprision of a felony is punishable by up to three years in federal prison, a fine, or both. The actual sentence may depend on the circumstances of the case and the discretion of the judge.
An example of misprision of a felony would be if someone discovers that their friend has committed bank fraud and, instead of reporting it, helps hide evidence or lies to investigators to protect their friend. Even though the person did not participate in the bank fraud, their actions to conceal the crime make them guilty of misprision of a felony.
Misprision of a felony is distinct from being an accessory after the fact, which involves helping a felon avoid arrest or prosecution. Misprision focuses on the concealment and failure to report, rather than active assistance to the perpetrator.