The **Mississippi Bureau of Investigation (MBI)** is a key state agency under the Mississippi Department of Public Safety tasked with investigating, reporting, and preventing criminal activities throughout Mississippi[7]. MBI serves as a centralized investigative body coordinating efforts among federal, state, and local law enforcement agencies to address complex and serious crimes, including officer-involved shootings (except those involving state troopers), cyber-related crimes, violent offenses, and acts of terrorism or intimidation[4][6][7]. **MBI’s history and evolution** reflect its expanding role in law enforcement, adapting to emerging threats such as cybercrimes through the establishment of the Mississippi Office of Homeland Security within its structure. This office is specifically focused on investigating cyber-related crimes and supporting the suppression of violent and terroristic acts across the state, employing specialized investigators and technical personnel[4][7]. The bureau’s jurisdiction and authority have been shaped through legislative measures, empowering it with broad investigative and arrest powers to uphold law and order effectively[4][6]. Key responsibilities of the MBI include managing investigations into officer-involved shootings (excluding state troopers), coordinating fraud investigations especially those involving program fraud or embezzlement referred by the Fraud Investigation Unit, and collaborating with various agencies such as the Department of Revenue and Attorney General’s Office to ensure thorough investigations and prosecution support[2][4][7][8]. The bureau also plays a critical role in maintaining the chain of custody and evidence integrity, vital for successful legal proceedings. MBI’s **notable aspects** include its integration of advanced investigative techniques and interagency cooperation to tackle multifaceted criminal issues, from violent crimes to complex fraud and cyber threats. It is an essential player in Mississippi’s law enforcement landscape, contributing significantly to public safety and justice administration through its comprehensive investigative mandate and technological adaptation[4][7].