A New York Subpoena To Testify at a Deposition In A Criminal Case is a legal document issued by a court in the State of New York which requires an individual to give evidence in a criminal case. This type of subpoena is also known as a “testimonial subpoena” and it orders the person to appear at a specific place and time to give testimony under oath. The individual receiving the subpoena must answer questions about the subject of the criminal case, provide documents or other evidence, and may even be asked to produce physical evidence during the deposition. There are two types of New York Subpoena To Testify at a Deposition In A Criminal Case: a grand jury subpoena and a trial subpoena. A Grand Jury Subpoena is issued by a grand jury and requires the recipient to appear and give testimony before the grand jury. A Trial Subpoena is issued by the court and requires the recipient to appear in court to testify at a criminal trial.