Subpoena to Testify at a Hearing or Trial in a Civil Action

US Federal Courts · Civil

Verified current as of August 1, 2026

# Subpoena AO 89 This form is used to legally require someone to appear in court and answer questions under oath about what they know regarding a civil case. A lawyer, judge, or party in a lawsuit would use this form to summon a witness who has information relevant to their case.