UNSC Naval Intelligence Office of Special Investigation

The UNSC Naval Intelligence Office of Special Investigation (NIOSI), pronounced "knee-oh-si", is an investigatory subcommittee of the UNSC Department of Strategic Intelligence, UNSC Office of Naval Intelligence charged with the investigation of special circumstances that represent special security risks to the United Nations Space Command (UNSC).

NIOSI would begin an investigation of the Beryl-Sherwood Encounter on Beryl.