What is a writ issued by a court directing a person to appear and testify?

A subpoena is a legal document that compels an individual to appear in court and testify in a legal proceeding. It serves as an essential tool in the judicial process, ensuring that witnesses are present to provide necessary evidence and information relevant to a case. Subpoenas can also request documents or evidence in addition to testimony, making them versatile in their application within legal contexts.

A warrant, on the other hand, is issued by a judge or magistrate allowing law enforcement to conduct a search or make an arrest. It does not pertain to testimony but rather to the enforcement of law. Writs of mandamus and prohibition are specific types of court orders that command or forbid an action related to another court or government agency, focusing more on directing actions rather than compelling testimony. Thus, the correct identification of a subpoena highlights its critical function in ensuring the presence of witnesses in legal matters.