A Washington Subpoena to Testify at a Hearing or Trial in a Criminal Case is a court order issued by a judge requiring a witness to appear in court to testify. The subpoena can also require the witness to bring documents or other items to the hearing or trial. It is important to note that the witness is not required to produce documents or items in the absence of a court order. There are two types of Washington Subpoena to Testify at a Hearing or Trial in a Criminal Case: 1. Subpoena duces tecum — This type of subpoena requires a witness to bring documents or items to the court for the hearing or trial. 2. Subpoena ad testificandum — This type of subpoena requires a witness to appear in court to testify. Both types of subpoenas must be served on the witness in person by an officer of the court. Upon delivery of the subpoena, the witness must be advised of their rights and obligations under the subpoena. Failure to comply with the subpoena can result in criminal and/or civil penalties.