subpoena — a legal document ordering someone to appear in court or produce evidence

a uniformed process server extends an official-looking document toward a surprised businessman in a suit. The businessman reaches out reluctantly to accept the formal paper with a worried expression on his face. The document represents his legal obligation to appear in court as a witness. His acceptance of the paper means he must now comply with the court's requirements. A lawyer in the background points toward the courthouse entrance, indicating where he must go. Other people in business attire walk up the courthouse steps, showing the formal legal environment. a legal document ordering someone to appear in court or produce evidence