Criminal Law: Crimes against justice – Obstruction of justice + Perverting the course of justice + Misprision of felony

Obstruction of justice, in United States jurisdictions, is a crime consisting of obstructing prosecutors, investigators, or other government officials. Common law jurisdictions other than the United States tend to use the wider offense of perverting the course of justice.

Obstruction is a broad crime that may include acts such as perjury, making false statements to officials, witness tampering, jury tampering, destruction of evidence, and many others. Obstruction also applies to overt coercion of court or government officials via the means of threats or actual physical harm, and also applying to deliberate sedition against a court official to undermine the appearance of legitimate authority.

Legal overview.

Obstruction of justice is an umbrella term covering a variety of specific crimes. Black's Law Dictionary defines it as any "interference with the orderly administration of law and justice". Obstruction has been categorized by various sources as a process crime, a public-order crime, or a white-collar crime.

Obstruction can include crimes committed by judges, prosecutors, attorneys general, and elected officials in general.

Federal law.

In federal law, crimes constituting obstruction of justice are defined primarily in Chapter 73 of Title 18 of the United States Code. This chapter contains provisions covering various specific crimes such as witness tampering and retaliation, jury tampering, destruction of evidence, assault on a process server, and theft of court records. It also includes more general sections covering obstruction of proceedings in federal courts, Congress, and federal executive agencies. One of the broadest provisions in the chapter, known as the Omnibus Clause, states that anyone who "corruptly... endeavors to influence, obstruct, or impede, the due administration of justice" in connection with a pending court proceeding is subject to punishment.

Statistics regarding the frequency of obstruction of justice prosecutions are unclear. In 2004, federal agencies arrested 446 people for obstruction, representing 0.3 percent of all federal arrests. This does not include, however, people who were charged with obstruction in addition to a more serious underlying crime.

Misprision of felony is a form of misprision, and an offence under the common law of England that is no longer active in many common law countries. Where it was or is active, it is classified as a misdemeanor. It consists of failing to report knowledge of a felony to the appropriate authorities. Exceptions were made for close family members of the felon and where the disclosure would tend to incriminate him of that offence or another.

Perverting the course of justice is an offence committed when a person prevents justice from being served on him/herself or on another party. In England and Wales it is a common law offence, carrying a maximum sentence of life imprisonment. Statutory versions of the offence exist in Australia, Canada, Hong Kong, Ireland, and New Zealand. The Scottish equivalent is defeating the ends of justice, while the South African counterpart is defeating or obstructing the course of justice.