Which legal term refers to a court summons requiring a person to appear and provide testimony?

• A. Subpoena Ad Testificandum
• B. Subpoena Duces Tecum
• C. Summons
• D. Writ of Mandamus

Answer: (A)

The key idea is identifying the instrument that compels a witness to appear and testify. When a court wants someone to come in and give testimony, the appropriate instrument is the subpoena ad testificandum. "Subpoena" is the general term for a court order to appear, and "ad testificandum" means “to testify,” so this kind of subpoena requires the person to appear and provide testimony under oath, either at a trial or during a deposition.

This differs from a subpoena duces tecum, which also compels appearance but specifically requires the person to bring documents or tangible evidence with them. A simple summons is a notice to appear in court to answer a complaint, but it doesn’t inherently mandate testimony in the same detailed way a subpoena ad testificandum does. A writ of mandamus is a different type of court order that directs a public official to perform a duty, not to testify. In Arizona private process serving practice, you’d issue and serve a subpoena ad testificandum when testimony is the goal.