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Duty Descriptions31B Military Police
MOS 31B

31B Military Police NCOER Duty Description Examples

Real NCOER duty description examples for 31B Military Police. Covers direct, organizational, and senior leadership levels plus common duty positions including patrol NCO, desk sergeant, and provost marshal NCOIC.

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What makes a strong 31B duty description?

Military police duty descriptions should reflect law enforcement scope, force protection responsibilities, and the ability to maintain order on military installations. Reference specific law enforcement functions, the installation or area supported, and regulatory compliance requirements. Use law enforcement terminology appropriate to the MP role.

Duty Descriptions by Rank Level

Direct Level (SGT/SSG)Patrol NCO / Team Leader

Serves as Military Police Patrol NCO responsible for law enforcement and force protection operations on a military installation; Conducts vehicle and foot patrols, responds to emergency calls, and enforces federal laws, military regulations, and installation policies; Performs accident investigations, criminal investigations, and prepares law enforcement reports in accordance with AR 190-45; Manages installation access control and enforces visitor control procedures at designated entry control points; Provides physical security assessments and coordinates with installation security officers on force protection measures; Trains and supervises junior MPs in law enforcement procedures, use of force, and professional standards

Organizational Level (SFC)Desk Sergeant / Patrol Supervisor

Serves as Desk Sergeant responsible for the management of Military Police operations and law enforcement activities for an installation; Supervises military police patrol operations and manages shift activities including dispatch, response, and law enforcement reporting; Manages the installation blotter and ensures accurate documentation of all law enforcement incidents and actions; Coordinates with CID, installation security, and civilian law enforcement agencies on investigations and force protection matters; Directs the execution of traffic enforcement, crime prevention, and physical security programs; Advises the Provost Marshal on law enforcement readiness, incident trends, and operational requirements

Senior Level (MSG)Provost Marshal NCOIC

Serves as Provost Marshal NCOIC responsible for all military police operations and law enforcement programs for a major installation; Supervises military police supervisors and section NCOICs in the execution of patrol operations, investigations, and force protection programs; Manages installation law enforcement training programs and ensures compliance with AR 190-series regulations; Directs the development of installation security plans, emergency response procedures, and force protection measures; Coordinates with federal, state, and local law enforcement agencies on investigations and installation security matters; Advises the Provost Marshal and installation commander on all law enforcement readiness, force protection, and security matters

Duty Descriptions by Position

Patrol NCO

Serves as Military Police Patrol NCO conducting law enforcement and force protection operations on a military installation; Responds to emergency calls, conducts investigations, and enforces federal laws and military regulations; Performs vehicle accident investigations and prepares law enforcement reports in ALERTS in accordance with AR 190-45; Manages installation access control at designated entry control points and enforces visitor control procedures; Conducts crime prevention activities and coordinates with installation security on physical security matters; Trains junior MPs in patrol procedures, use of force policy, and law enforcement reporting requirements

Corrections NCO

Serves as Corrections NCO responsible for the security, control, and rehabilitation of military prisoners; Supervises the custody and control of prisoners in accordance with AR 190-47 and applicable regulations; Manages prisoner intake, processing, and records maintenance in the confinement facility management system; Coordinates prisoner work details, rehabilitation programs, and release procedures with facility staff; Ensures compliance with human rights standards and prisoner treatment regulations during all confinement operations; Advises the confinement facility commander on prisoner status, security requirements, and facility operations

Law Enforcement NCO (Deployed)

Serves as Law Enforcement NCO conducting military police operations in a deployed environment; Executes patrol operations, access control, and force protection missions in support of the supported unit; Manages detainee operations in accordance with AR 190-8 and applicable laws of armed conflict; Coordinates with host nation police, coalition forces, and civilian law enforcement on law enforcement and security matters; Conducts crime prevention assessments and advises the supported commander on force protection vulnerabilities; Trains Soldiers on law enforcement procedures, detainee handling, and rules of engagement

Tips for writing 31B duty descriptions

  • Reference specific MP functions — patrol, investigations, access control, detainee operations
  • Include the installation or area of operations and population supported
  • Reference specific law enforcement regulations — AR 190-series, UCMJ, host nation agreements
  • Scale scope to rank — SGT leads patrol, SFC manages desk operations or patrol section
  • Include both law enforcement and force protection responsibilities when applicable

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Common duties at each rank for 31B

SGT
Serves as 31B patrol officer or patrol team leader. Conducts law-and-order patrols. Maintains duty equipment.
SSG
Serves as 31B Desk Sergeant or Patrol Supervisor. Leads a patrol shift. Plans and executes MP training.
SFC
Serves as 31B Platoon Sergeant or Provost Marshal NCO. Mentors patrol supervisors. Plans platoon MP operations.
MSG
Serves as senior 31B NCO at company or PMO level. Develops platoon sergeants. Runs battalion-level MP training.

More example NCOER bullets for 31B duty position

CharacterExceeded Standard
o reinforced 31B law-enforcement dignity and respect standards; patrol team operated without complaint and aligned to EO policy
LeadsExceeded Standard
o led 31B patrol team during installation security operations; team responded to incidents within standard response times
AchievesExceeded Standard
o trained team on use-of-force continuum; team qualified 100 percent on MP skills first attempt at home station

Other MOS duty descriptions

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