NCIS Special Agents handle a wide variety of cases, including crimes such as terrorism, espionage, homicide, sexual assault, and financial fraud involving Navy or Marine Corps personnel or property. A typical workweek often involves a mix of field investigations, report writing, evidence processing, and interagency collaboration, which may require travel and irregular hours. Agents frequently work as part of dedicated teams alongside law enforcement partners at the federal, state, and local levels. The role can be fast-paced and unpredictable, demanding adaptability and a strong sense of mission as agents work to protect military assets and national security.