A Maryland Subpoena or Subpoena Ducks Cecum is a legal document issued by a court or an attorney that requires a person or entity to appear in court to testify or to produce certain documents related to a case. A Subpoena Ducks Cecum For Medical Records is a type of Maryland Subpoena that specifically requires a person or entity to produce medical records. This type of Subpoena is commonly used in personal injury cases, where a plaintiff must prove the extent of their injury or the cause of their illness. There are two main types of Maryland Subpoena Ducks Cecum For Medical Records: one that requires the production of documents only, and one that requires the production of both documents and testimony.