What is the instruction that covers the Missions and Functions of NCIS?

The instruction that covers the Missions and Functions of the Naval Criminal Investigative Service (NCIS) is SECNAVINST 5430.107. This instruction outlines the roles and responsibilities assigned to NCIS, detailing its mission, organizational structure, and operational guidelines. Understanding this instruction is crucial for those involved in naval safety and security because it delineates how NCIS operates within the Navy and its integral role in maintaining safety and enforcing laws within naval commands.

The other instructions listed, while they may cover different aspects of naval operations or organizational structures, do not specifically address the missions and functions of NCIS. This distinction solidifies the rationale for identifying SECNAVINST 5430.107 as the relevant document regarding NCIS’s operational framework.