A "subpoena" is a legal document that orders a person to appear in court or produce certain evidence (like documents or records) in a legal proceeding. It is typically issued by a judge or an attorney and is an important part of the legal system, ensuring that necessary information is made available during a trial or investigation.
The term "subpoena" comes from the Latin phrase "sub poena," which means "under penalty." This indicates that failing to comply with the subpoena can result in legal penalties, such as fines or other consequences.