A New Jersey Subpoena Ducks Cecum (Request an Appearance or Documents) is a legal document issued by a court or other judicial body instructing an individual or entity to appear in court at a certain date and time and produce certain documents for use as evidence in a case. The subpoena can be either for a person's appearance or for the production of documents. There are two types of New Jersey Subpoena Ducks Cecum (Request an Appearance or Documents): Subpoena for Appearance and Subpoena for Documents. A Subpoena for Appearance requires the person to appear in court at a certain date and time to testify in a case. The person must appear in court regardless of whether they have documents to produce or not. A Subpoena for Documents requires the person to produce certain documents that are relevant to the case. The documents must be produced in court at a certain date and time. The New Jersey Subpoena Ducks Cecum (Request an Appearance or Documents) must be served to the individual or entity by a process server or other authorized person. The subpoena must be served at least 10 days before the date set for the appearance or production of documents. If the subpoena is not served properly, the court may reject the request.