A Pennsylvania Subpoena is a type of legal document that is issued by a court or government agency in the state of Pennsylvania. It is used to compel individuals or entities to either testify or to produce documents or other evidence for use in a legal case. There are two main types of Pennsylvania Subpoenas — a Subpoena Duces Tecum and a Subpoena Ad Testificandum. A Subpoena Ducks Cecum orders an individual or entity to produce documents or other tangible evidence for use in a legal case. A Subpoena Ad Testificandum orders an individual or entity to appear in court to testify. Both of these types of Subpoenas must be served on the individual or entity to which they are directed, and the recipient must comply with the Subpoena's demands or face legal penalties.