A Texas Subpoena to Testify at a Hearing or Trial in a Criminal Case is a legal document issued by the court in Texas that requires a person to appear at a specific time and location to provide testimony in a criminal case. It is used to require a witness to appear in court and testify in a criminal trial or hearing. Depending on the case, the witness may be required to bring documents, photographs, or other physical evidence to the court. There are two types of Texas Subpoena to Testify at a Hearing or Trial in a Criminal Case: a subpoena duces tecum and a subpoena ad testificandum. A subpoena duces tecum requires a witness to bring documents, photographs, or other physical evidence to the court. A subpoena ad testificandum requires the witness to appear in court and testify. The recipient of a Texas Subpoena to Testify at a Hearing or Trial in a Criminal Case may be required to respond to the subpoena within a certain period of time, typically 10 to 21 days. It is important for the recipient to fill out the subpoena and comply with its instructions. Failure to do so may result in a fine or the witness being held in contempt of court.