What is used to compel the production of evidence and testimony?

A subpoena is used to compel the production of evidence and testimony. It is a legal document issued by a court or other authority that requires an individual to appear in court or produce specific documents. Failure to comply with a subpoena can result in legal penalties, including contempt of court. Subpoenas are often utilized in both civil and criminal cases to ensure that relevant information is available for proceedings.