Which document provides legal orders for evidence in criminal investigations?

Study for the Certified Bank Secrecy Act Professional Test. Use flashcards and multiple-choice questions with hints and explanations. Get exam ready!

Grand jury subpoenas are the formal orders that compel a person to testify or to produce documents in a criminal investigation. They carry court-enforceable authority, and failure to comply can lead to contempt proceedings. This makes them the primary tool for gathering evidence when the investigation is moving toward an indictment, since the grand jury has the power to require witnesses to provide information and records relevant to the case. In contrast, a general subpoena can be used in civil or criminal contexts and doesn’t specifically arise from a grand jury proceeding. National Security Letters are focused on national-security investigations and come with different rules and secrecy obligations, not the standard criminal-evidence process. A Formal Written Request lacks the enforceability and the prosecutorial framework that a grand jury subpoena provides.