A Texas Felony Subpoena is a court order that requires an individual or entity to appear in court or produce records related to a felony case. It is issued by a judge or court clerk and is served on the person or entity named in the subpoena. There are two types of Texas Felony Subpoenas: Grand Jury Subpoena and Witness Subpoena. A Grand Jury Subpoena is issued when a grand jury is being convened to investigate a felony case, and the individual or entity is required to appear in court and provide testimony or records. A Witness Subpoena is issued when a witness is needed to testify in court for a felony case, and the individual or entity is required to appear in court and provide testimony.