Security & Law Enforcement (Master-at-Arms)

About the Role

Master-at-Arms (MA) Sailors form the backbone of the Navy's security, antiterrorism, and law enforcement capabilities. Their mission is to protect people, installations, ships, and strategic assets both at home and abroad. From conducting force protection patrols on piers to managing corrections and investigations, MAs operate in diverse environments ranging from bases and aircraft carriers to expeditionary units and harbor security boats.

This role exists to ensure the safety and security of Navy operations through a constant, professional law enforcement presence. You will work in a fast-paced, armed, and safety-critical environment where attention to detail, sound judgment, and professionalism are essential. The day-to-day involves standing sentry, controlling access, investigating incidents, and responding to emergencies, often requiring calm decision-making under stress.

Career Path & Training

Your journey begins with Recruit Training, followed by Master-at-Arms Class "A" School at Lackland AFB. Here, you will master the fundamentals of law enforcement, weapons handling, antiterrorism, and security operations. As you progress, you will gain on-the-job qualifications through Personnel Qualification Standards and unit training.

The career offers significant growth and specialization. You can advance to leadership roles such as patrol supervisor or watch commander, or pursue advanced schools to become a Military Working Dog Handler, Harbor Security Coxswain, Corrections Specialist, or Criminal Investigator. Career-long development includes leadership courses and warfare qualifications like ESWS or EAWS, depending on your assignment.

Work Environment

Assignments vary widely, taking you to Navy installations in the U.S. and overseas, aboard ships, or with expeditionary security units. You will work primarily on bases, piers, flight lines, and in security operations centers, often integrating with Marine units, NCIS, and joint partners.

Expect a lifestyle that includes frequent duty in rotating shifts, covering nights, weekends, and holidays to provide 24/7 security. The role may involve overseas, forward-deployed, and dependent-restricted tours that count as sea duty. You will be part of a close-knit community of security forces, sharing the responsibility of maintaining order and safety in high-stakes situations.

Equal Opportunity

The Navy is an equal opportunity employer. We consider qualified applicants regardless of background, race, color, religion, gender, sexual orientation, gender identity, marital status, national origin, disability, or protected veteran status. We are committed to building a diverse and inclusive force that reflects the nation it serves.