A Pennsylvania 8. Subpoena — Attend and Testify is a court-issued legal document issued by a Pennsylvania court that requires a person or entity to appear before the court and give testimony as a witness in a case. This type of subpoena requires the recipient to appear in court and testify under oath or affirmation. There are two types of Pennsylvania 8. Subpoena — Attend and Testify: CiviSubpoenaen— – Attend and Testify which is used in civil cases and Criminal Subpoena — Attend and Testify which is used in criminal cases. The Subpoena — Attend and Testify must provide the recipient with a specific date, time, and place to appear in court as a witness. Failure to comply with the court-ordered subpoena could result in fines, jail time, or other legal penalties.