The Tennessee AO-89 Subpoena in a Criminal Case is an official form used in the Federal District Court system. It is designed to compel the appearance of witnesses or the production of documents in criminal cases. This subpoena is an essential tool for attorneys and law enforcement agencies involved in criminal proceedings. The Tennessee AO-89 Subpoena in a Criminal Case form ensures compliance with the rules and regulations of the Federal District Court and provides a clear format for serving subpoenas. It helps to maintain the integrity of the legal process by ensuring that both prosecution and defense have access to necessary witnesses and evidence. This official form can be used to issue different types of subpoenas in criminal cases, as listed below: 1. Witness Subpoena: This type of subpoena is used to compel the appearance of individuals who may have relevant information or evidence in a criminal case. Witnesses can include victims, experts, or other individuals with knowledge about the crime or parties involved. 2. Subpoena Ducks Cecum: This type of subpoena is used to compel the production of documents or records in a criminal case. This could include medical records, financial documents, or any other evidence that is relevant to the case. 3. Subpoena Ad Testificandum: This type of subpoena is used specifically to compel the attendance and testimony of witnesses in court proceedings. It ensures that witnesses are present during trial or other important hearings to provide their testimony under oath. 4. Subpoena for Deposition: In some cases, it may be necessary to take a witness's testimony outside the courtroom. A subpoena for deposition allows attorneys to request that a witness appear at a specific time and place to provide their testimony under oath, which can be used later in the criminal trial. It is important to note that this description refers specifically to the Tennessee AO-89 Subpoena in a Criminal Case — Federal District Court Official Form. Different jurisdictions or courts may have their own unique versions of the subpoena form, although the purpose and general requirements of the subpoena remain consistent across jurisdictions.