A New York Subpoena to Appear and Testify at Hearing or Trial in a Civil Action is a legal document issued by the court that requires a person to appear in court and give testimony relating to a particular civil action. It is typically issued by the court clerk under the direction of the court or an attorney representing one of the parties in the case. The person receiving the subpoena must appear at a specified time and place to testify. There are two types of New York Subpoena to Appear and Testify at Hearing or Trial in a Civil Action: a Subpoena Ducks Cecum and a Subpoena Ad Testificandum. A Subpoena Ducks Cecum requires the recipient to bring documents or other tangible things related to the case to the court. A Subpoena Ad Testificandum requires the recipient to appear in court in order to give testimony. The New York Subpoena to Appear and Testify at Hearing or Trial in a Civil Action must be served to the recipient in person, and the server must complete an affidavit of service. The recipient is then required to appear in court when summonsed, and failure to do so may result in legal penalties including fines and/or jail time.