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 aircraft carriers and expeditionary units to strategic weapons facilities.

This is a fast-paced, armed, and safety-critical career where attention to detail, sound judgment, and professionalism are paramount. You will work in a 24/7 environment, often rotating through nights, weekends, and holidays to ensure continuous security coverage. The role demands the ability to remain calm and decisive during emergencies, accidents, or criminal activity while maintaining a strong law enforcement presence.

As you progress, you will take on increasing responsibility, qualifying for specialized billets such as patrol supervisor, watch commander, military working dog handler, or criminal investigator. You will work closely with security forces, Marine units, NCIS, and joint or host-nation partners, integrating into a global network of security professionals.

Training and Career Path

Your journey begins with Recruit Training, followed by Master-at-Arms Class "A" School at Lackland AFB. There, you will master the fundamentals of law enforcement, weapons handling, antiterrorism, and security operations. Advancement is driven by progressive on-the-job qualification through Personnel Qualification Standards and unit training.

The Navy offers extensive opportunities for specialized development. You can pursue advanced schools to earn Navy Enlisted Classifications (NECs) as a Military Working Dog Handler, Harbor Security Coxswain, Corrections Specialist, or Criminal Investigator. Career-long growth is supported by leadership courses, warfare qualifications (such as ESWS, EAWS, or NWS), and senior enlisted leader programs.

Application and Hiring Process

To join the Master-at-Arms community, you must meet general enlistment standards, including U.S. citizenship or eligible residency, a high school diploma, and strict medical, vision, and dental requirements. A clean legal history and strong moral character are essential for armed law enforcement duties.

Interested candidates should contact an official Navy recruiter to discuss eligibility, current incentives, and specific program requirements. Recruiters can provide details on active duty and Reserve opportunities, including potential pathways for prior-service Sailors or those with specific skills. Note that actual assignments, training slots, and incentives depend on Navy needs, individual performance, and current policy.

Equal Opportunity and Culture

The Navy is an equal opportunity employer. We consider qualified applicants regardless of background, race, color, religion, sex, national origin, disability, or status as a protected veteran. Our culture values integrity, discipline, and service, fostering an environment where Sailors are empowered to protect the nation's interests with honor and excellence.