A Minnesota (AO88) Subpoena to Appear and Testify at a Hearing or Trial in a Civil Action is an official court document issued by a court of law in Minnesota. It requires the recipient to appear at a hearing or trial and to provide testimony or other evidence relevant to a civil case. The subpoena can be issued by either the plaintiff or the defendant in a case and is typically served by a process server, sheriff, or other authorized individual. There are two types of Minnesota (AO88) Subpoena to Appear and Testify at a Hearing or Trial in a Civil Action: 1. Subpoena to Appear and Testify: This type of subpoena requires the recipient to appear in court and provide testimony or other evidence relevant to the case. 2. Subpoena to Produce Documents, Electronically Stored Information, or Objects: This type of subpoena requires the recipient to produce documents, electronically stored information, or physical objects relevant to the case.