Texas Application for Criminal Subpoenas is a form used by law enforcement personnel to obtain documents or testimony from individuals in criminal cases. It is used to compel a witness or party to produce documents or testify in a criminal court proceeding. The form is issued by the judge and signed by the clerk of the court. There are two types of Texas Application for Criminal Subpoenas: a subpoena duces tecum and a subpoena ad testificandum. A subpoena duces tecum requires the witness or party to produce certain documents, such as financial records or an item of evidence. A subpoena ad testificandum requires the witness to appear before the court and provide testimony. Both types of subpoenas are issued by a court of competent jurisdiction in Texas.