Under color of authority

In United States law, the term color of law denotes the "mere semblance of legal right", the "pretense or appearance of" right; hence, an action done under color of law colors (adjusts) the law to the circumstance, yet said apparently legal action contravenes the law.Under color of authority is a legal phrase used in the US indicating that a person is claiming or implying the acts he or she is committing are related to and legitimized by his or her role as an agent of governmental power, especially if the acts are unlawful.

"Color of law" refers to an appearance of legal power to act that may operate in violation of law. For example, if a police officer acts with the "color of law" authority to arrest someone, the arrest, if it is made without probable cause, may actually be in violation of law. In other words, just because something is done with the "color of law" does not mean that the action was lawful. When police act outside their lawful authority and violate the civil rights of a citizen, the FBI is tasked with investigating.

The US Supreme Court has interpreted the US Constitution to construct laws regulating the actions of the law enforcement community. Under "color of law," it is a crime for one or more persons using power given by a governmental agency (local, state or federal), to deprive or conspire wilfully to deprive another person of any right protected by the Constitution or laws of the United States. Criminal acts under color of law include acts within and beyond the bounds or limits of lawful authority. Off-duty conduct may also be covered if official status is asserted in some manner. Color of law may include public officials and non-governmental employees who are not law enforcement officers such as judges, prosecutors, and private security guards. Furthermore, in many states it is unlawful to falsely impersonate a police officer, a federal officer or employee, or any other public official or to use equipment used by law enforcement officers, such as flashing lights or a fake police badge. Possession of a firearm also can enhance the penalty for false impersonation of a police officer.

"Color of office" refers to an act usually committed by a public official under the appearance of authority but exceeds such authority. An affirmative act or omission, committed under color of office, is sometimes required to prove malfeasance in office.

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