The Wisconsin GF-126A Subpoena is a legal document issued by a court in the state of Wisconsin. It is a command to appear and testify at a court hearing, or to produce documents or records to a court. The Wisconsin GF-126A Subpoena is typically issued to individuals or organizations, and is used to acquire evidence or testimony for a court case. There are several types of Wisconsin GF-126A Subpoena, including a Subpoena Ducks Cecum, which requires the recipient to produce documents or records; a Subpoena Ad Testificandum, which requires the recipient to appear in court and provide testimony; and a Subpoena Quash, which is a court order to quash an existing subpoena.