Obstruction of justice in the United States

Criminal law
Elements
Actus reus Mens rea Causation Concurrence
Scope of criminal liability
Accessory Accomplice Complicity Corporate Principal Vicarious
Severity of offense
Felony (or Indictable offense) Infraction (also called violation) Misdemeanor (or Summary offense)
Inchoate offenses
Attempt Conspiracy Incitement Solicitation
Offense against the person
Assassination Assault Battery Child abuse Criminal negligence Defamation Domestic violence False imprisonment Frameup Harassment Home invasion Homicide Human trafficking Intimidation Kidnapping Menacing Manslaughter (corporate) Mayhem Murder felony Negligent homicide Robbery Stalking Torture
Sexual offenses
Adultery Bigamy Child sexual abuse Cybersex trafficking Fornication Homosexuality Incest Indecent exposure Masturbation Obscenity Prostitution Rape Sex trafficking Sexual assault Sexual slavery Voyeurism
Crimes against property
Arson Arms trafficking Blackmail Bribery Burglary Embezzlement Extortion False pretenses Forgery Fraud Gambling Intellectual property violation Larceny Looting Payola Pickpocketing Possessing stolen property Robbery Smuggling Tax evasion Theft Trespass to land Vandalism, Mischief
Crimes against justice
Compounding Malfeasance in office Miscarriage of justice Misprision Obstruction Perjury Perverting the course of justice
Crimes against the public
Apostasy Begging Censorship violation Dueling Genocide Hostage-taking Illegal consumption (such as prohibition of drugs, alcohol, and smoking) Miscegenation Piracy Regicide Terrorism Usurpation War crimes
Crimes against animals
Cruelty to animals Poaching Wildlife smuggling Bestiality
Crimes against the state
Lèse-majesté Treason Espionage Secession Sedition Subversion
Defenses to liability
Actual innocence Automatism Consent Defense of property Diminished responsibility Duress Entrapment Ignorantia juris non excusat Infancy Insanity Justification Mistake (of law) Necessity Provocation Self-defense
Other common-law areas
Contracts Defenses Evidence Property Torts Wills, trusts and estates
Portals
Law
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In United States jurisdictions, obstruction of justice refers to a number of offenses that involve unduly influencing, impeding, or otherwise interfering with the justice system, especially the legal and procedural tasks of 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.^{[citation needed]}