Military Police

You are the patrol officer. The badge is real, the authority is real, and the first time you write a ticket on a gunnery sergeant with a blood-alcohol reading, you find out immediately whether you can carry the job.

You graduate the USMC Military Police School at Fort Leonard Wood — joint training with Army MPs — and report to a Provost Marshal Office (PMO) or Marine Corps Law Enforcement (MCLE) unit. Your days are shift work: patrol brief, radio check, vehicle inspection, then 8 to 12 hours on post or in a patrol sector. You write traffic citations, respond to domestic disturbance calls, process DUIs on the breathalyzer, do the paperwork for a break-in at the PX, and rotate through the desk, the gate, and the patrol zone. There is also the infantry side: you qualify annually on your crew-served systems, you run force protection drills, and when the battalion deploys, the MP platoon does detainee operations, route security, and area security — not just badge-and-gun work. You are a Marine first, and the PMO formation knows whether you are training like it.

• 01Conduct a traffic stop, DUI detection (SFST — standardized field sobriety tests), and portable breathalyzer operation to the USMC LE standard under MCO P5580.2A.
• 02Write an incident report and a DA 3975 / USMC LE report that is legible, time-accurate, and defensible in a UCMJ hearing — the JAG attorney reads what you wrote.
• 03Execute use-of-force escalation — verbal commands, OC spray, ASP baton, handcuffing — to the USMC MP force continuum and without leaving bruises you cannot document.
• 04Process, search, and account for a detainee or EPW from point-of-capture through transfer, in compliance with DODI 2310.01E and the Geneva Conventions.
• 05Operate the patrol vehicle radio (land mobile radio system) and NCIS / law enforcement information systems at the basic user level — case-number generation, wants-and-warrants checks, NCIC terminal access.
• 06Qualify Expert on the M9 / M18 pistol and M16 / M4 carbine on the annual LE and infantry qualification ranges — the PMO expects two different qual paths and you have to pass both.

• —MCO P5580.2A — Marine Corps Motor Vehicle Laws and Regulations (the primary LE regulation you enforce on installation).
• —MCWP 3-34.1 — Military Police in MAGTF Operations (doctrine for the combined-arms and force-protection missions that come with deployment).
• —DODI 2310.01E — DoD Detainee Program (governs EPW / detainee handling at every echelon, including your patrol-level actions).
• —NAVMC 1200.1 — Marine Corps MOS Manual (5811 MOS description, training pipeline, and billet requirements).
• —MCO 6100.13 — Marine Corps Physical Fitness, Body Composition, and Military Appearance (PFT/CFT standards you maintain on shift rotation).
• —AR 190-56 / DODI 5525.15 — DoD Law Enforcement Standards (joint standards referenced by USMC for credentialing and LE training; your Fort Leonard Wood schoolhouse runs against these).

• —USMC Military Police School graduation — the joint schoolhouse at Fort Leonard Wood; you do not touch a PMO patrol sector without it.
• —Annual LE qualification on the M9 / M18 and the M16 / M4 to the PMO standard — Expert is the expected floor; your FitRep reflects your qualification score.
• —1st-Class PFT and CFT under MCO 6100.13 — shift work does not excuse a failed PT test, and the patrol supervisor sees the results.
• —OC spray (pepper spray) certification and annual recertification — USMC MP LE standard; lapsed cert means you are off patrol pending remediation.
• —NCIC / TCIC terminal access and wants-and-warrants certification current — PMO operations cannot use a terminal operator whose certification has lapsed.

• —Writing a use-of-force report after the fact to match the bruising instead of documenting contemporaneously. The NCIS agent and the JAG read both — they always find the gap.
• —Letting a junior Marine process a detainee without a witness and without the search documented step-by-step. The chain-of-custody hole becomes an Article 32 problem twelve months later.
• —Skipping your PCC on the patrol vehicle — vehicle damage, missing equipment, a cracked partition — that was there before your shift is your deficiency the moment you signed for the keys.
• —Running a DUI stop without logging the call on the radio first. The dispatcher log is your timeline; if it is not in the log, the defense attorney owns the stop.
• —Posting anything on social media from inside the PMO, from a crime scene, or that identifies a detainee. NCIS and the PMO both run sweeps on service member social media; your supervisor gets the call before you do.

The good junior 5811 is the patrol officer the desk sergeant assigns the complicated call to — not because it is fair, but because the paperwork comes back right the first time. By month twelve the patrol supervisor is signing off on the Cpl recommendation without being asked; by month eighteen the PMO commander knows the name of the LCpl who got the DUI conviction the S-3 was nervous about. The infantry side is real: this Marine is also the one who ran the detainee processing lane at the company field exercise without losing a single item on the accountability sheet.

You are the first-line leader on the patrol deck. You do not just answer calls — you are the NCO in charge of two to three junior MPs for the shift, and the patrol sergeant is evaluating whether you can run a scene before backup arrives.

You lead a patrol element — typically yourself and one to two junior MPs — through an 8-to-12-hour shift on installation. You write proficiency and conduct marks that feed your Marines' composite scores, you run PCIs on their equipment and their paperwork before the shift brief ends, and you are the senior on-scene for the first five minutes of every call until the patrol sergeant or duty officer arrives. The administrative load grows: supplemental reports, case file maintenance, court appearance prep for UCMJ proceedings, and the FitRep packet that starts the conversation about Sgt. You are also picking up the additional duties — range safety NCO, evidence custodian assistant, MCMAP training, the details that define the visible Cpl — while still running the post rotation and patrolling the sector.

• 01Lead a patrol element through a domestic disturbance, a serious incident, or a gate-access emergency and maintain scene control until the supervisor arrives — radio traffic clean, Marines on the right corners, no freelancing.
• 02Write a complete case file — incident report, supplemental, witness statements, photographic evidence log, chain of custody form — that the PMO adjutant can submit to JAG without a correction.
• 03Run a PCI on junior MPs' patrol gear, field sobriety equipment, report writing materials, and LE credentials before they mount the vehicle — not a head nod.
• 04Testify in a UCMJ Article 32 hearing or a state civilian court proceeding from your own documented reports without contradicting yourself — the JAG attorney will prep you, but you have to own what you wrote.
• 05Operate and train junior MPs on restraint devices, vehicle stop procedures, and use-of-force escalation under the current USMC MP force continuum.
• 06Manage basic evidence handling — item tagging, chain of custody, property room intake — at the Cpl level before the evidence custodian reviews your work.

• —MCO P5580.2A — Marine Corps Motor Vehicle Laws and Regulations (enforcement authority, procedures, and documentation you lead your patrol against).
• —MCWP 3-34.1 — Military Police in MAGTF Operations (operational doctrine you apply when the PMO deploys in support of the MAGTF).
• —MCO 1610.7 — Performance Evaluation System (you write proficiency and conduct marks now; the FitRep for you is coming).
• —MCO 1400.32 — Marine Corps Promotion Manual (composite scores, cutting scores, and the Sergeants Course eligibility you are building toward).
• —DODI 5525.15 / AR 190-56 — DoD Law Enforcement Standards and Army MP Regulation (joint LE credentialing standards the schoolhouse trained you against).
• —DODI 2310.01E — DoD Detainee Program (Cpl-level detainee operations oversight and accountability).

• —Corporals Course graduate — required for NCO authority; the Sgt board will not move without it.
• —Annual LE qualification on M9 / M18 and M16 / M4 maintained to PMO standard — Expert expected; degraded scores are noted and remediated on your timeline.
• —1st-Class PFT and CFT — your Marines do not respect a patrol leader who falls out on a run.
• —OC spray and ASP baton recertifications current — lapsed LE credentials mean you are off patrol pending remediation, not leading it.
• —Composite score tracked against the current TFRS / MARADMIN cutting score for 5811 to Sgt — pull the current cycle before you ask the patrol sergeant where you stand.

• —Signing off a junior MP's report without reading it. Your name is on the supplemental; if the primary report has a timeline error, you own it at the Article 32.
• —Letting the patrol element mount before you inspect LE equipment — breathalyzer calibration log, evidence bags, OC spray, handcuffs. One missing item is a suppressed arrest at trial.
• —Mishandling the chain of custody on a single piece of evidence — one unlogged transfer, one missing signature. The defense attorney finds it and the PMO commander is answering questions about your training.
• —Running verbal corrections on a junior MP in front of a suspect or complainant. The scene stays professional; the correction happens in the vehicle after the call.
• —Skipping the Corporals Course packet because the window is "probably next quarter." Slots evaporate; the Sgt cutting score does not wait.

The good 5811 Cpl runs patrol elements that close cases cleanly — scene controlled, reports submitted same shift, chain of custody intact, and the JAG attorney does not call the PMO for corrections. The patrol sergeant uses this Cpl's after-action reports as the training example for the junior MPs coming through schoolhouse integration. By the Sergeants Course slot conversation, the PMO first sergeant already knows the name.

The desk is yours, or the patrol section is yours. Either way, the shift runs through your decisions — you are the senior on-scene, the approving authority for reports, and the NCO the duty officer calls when the call goes complicated.

You are the desk sergeant or patrol supervisor for a shift — overseeing four to ten MPs, approving incident reports before they go to the PMO chain, running the shift brief and the daily shift changeover log, and managing the LE operational picture for your sector. You write FitReps on your Cpls (yes, FitReps — under MCO 1610.7, all Marine E-1 to O-10 receive annual fitness reports), you interface with NCIS agents on active investigations, and you sign off on the case files the JAG attorney needs before the Article 32 calendar. The force-protection and combined-arms side still lives: you run the MP element through the unit's deployment readiness training, you brief detainee operations procedures before exercises, and you train the Cpls on the convoy security and route reconnaissance tasks that activate when the MAGTF deploys. CID (Criminal Investigation Division) exposure begins at this tier for high performers.

• 01Run a shift brief — tactical situation, priority calls, individual assignments, LE credential status, vehicle inspection results — in 15 minutes that produces a ready patrol element.
• 02Approve and correct incident reports and case files before submission to the PMO chain — grammar and consistency are your floor, evidentiary completeness is the ceiling.
• 03Write FitReps on three to five Cpls per cycle with clean Section A narrative — observed behavior, action-result-impact, no inflation the reporting senior cannot defend.
• 04Coordinate with NCIS on active felony-level investigations — provide patrol reports, secure the crime scene log, identify witnesses on the patrol manifest without contaminating the investigation.
• 05Run a force-protection or detainee-operations rehearsal for an upcoming deployment or exercise, using MCWP 3-34.1 as the doctrinal frame.
• 06Mentor your Cpls into Corporals Course graduates and Sgt-board candidates — their composite scores and FitReps are your score as a supervisor.

• —MCWP 3-34.1 — Military Police in MAGTF Operations (your doctrinal manual for the deployment mission, now your responsibility to teach).
• —MCO P5580.2A — Marine Corps Motor Vehicle Laws and Regulations (you are approving enforcement actions taken under this authority).
• —MCO 1610.7 — Performance Evaluation System (you write FitReps; the Section A you produce is the one the reporting senior defends at the board).
• —MCO 1400.32 — Marine Corps Promotion Manual (SSgt composite scores, cutting scores, and Sergeants Course eligibility for your Cpls).
• —DODI 2310.01E — DoD Detainee Program (Sgt-level detainee operations oversight and the accountability procedures you brief before exercises).
• —NAVMC 1200.1 — MOS Manual (5811 roadmap, duty MOS requirements, and the CID program entry criteria your best Cpls are looking at).

• —Sergeants Course graduate — required and gated; it is not optional on the path to SSgt in this MOS.
• —Annual LE qualification maintained and your patrol element's aggregate qual rate tracked — the PMO officer sees the section report.
• —1st-Class PFT and CFT; the shift watches the desk sergeant's PT result — it tells them whether the standard is real.
• —Case file acceptance rate — reports approved without correction from the PMO adjutant or JAG — is the primary metric the PMO sergeant major watches for your section.
• —Current OC spray and baton recertifications for yourself and tracked for each Marine under your supervision — lapsed credentials are your administrative failure.

• —Approving a report with a timeline that contradicts the radio dispatch log. The defense attorney subpoenas both in the same motion; the PMO commander absorbs the credibility hit.
• —Verbal-only counseling of a problem performer. If the pattern is not in writing — page-11 or formal counseling — it did not happen, and the company commander cannot act when you finally bring it.
• —Delegating an evidence custody transfer without supervising the signatures yourself on high-value or controlled-substance evidence. One broken link is a case dismissal and an IG referral.
• —Allowing a Cpl to run a force-protection lane without a current risk assessment (ORM) in the file. The PMO officer will not stand behind you when the XO asks why it was not there.
• —Going around the PMO sergeant major to the PMO officer on a personnel issue. The chain runs through the sergeant major; everyone in the section knows by the time you walk back to the desk.

The good 5811 Sgt runs a shift where the case files come back from JAG approved, not returned for correction, and the patrol element hits its LE qualification standard without a remediation cycle. NCIS asks for this Sgt's section by name when a case needs patrol coordination that does not create problems. The PMO first sergeant already has this Marine's name on the SSgt board conversation months before the composite score board opens.

You are the senior NCO in the PMO operations section or the shift supervisor for the largest patrol zone on the installation. The duty officer calls you first, the NCIS agent calls you second, and the PMO officer leans on your judgment before any of the paperwork moves.

You manage the daily LE and force-protection operations at the PMO or MCLE unit level — supervising multiple patrol sections, managing the shift schedule, maintaining LE credentialing and training records for 20 to 40 MPs, writing four to six Sgt FitReps per cycle, and advising the PMO officer (usually a captain or major) on enforcement posture, detainee operations readiness, and unit deployment preparation. You are the senior enlisted advisor on LE policy compliance, you brief the installation commander's staff on PMO statistics (traffic, DUI, domestic incidents, crime trend data), and you run the senior NCO review of case files before they go to JAG. CID referral and coordination happens at your desk. The combined-arms and MAGTF mission planning is your responsibility to translate from MCWP 3-34.1 into the unit's deployment SOP and rehearsal schedule.

• 01Build a PMO shift schedule and LE credential calendar that keeps the patrol deck covered 24/7 while simultaneously cycling Marines through qualification, recertification, and required schools.
• 02Write four to six Sgt FitReps per cycle — observed behavior, defensible attributes, relative value the PMO officer and reporting senior can justify at the board.
• 03Brief the installation G2 / S2 and provost marshal on crime trend data — traffic enforcement stats, domestic incident rate, gate security incidents — using real PMO reporting systems, not gut feel.
• 04Coordinate a multi-agency investigation response — PMO, NCIS, JAG, chain of command — for a serious incident (assault, drug offense, weapons violation) from first report through case referral.
• 05Develop and run the unit's MCWP 3-34.1-based deployment LE SOP — detainee processing procedures, route security drills, internment facility procedures — and rehearse it before the deployment window.
• 06Mentor two to three Sgts into SSgt-board-ready candidates through honest FitRep management, school slotting, and composite score tracking.

• —MCWP 3-34.1 — Military Police in MAGTF Operations (your operational doctrinal manual; you are building the unit deployment SOP from this).
• —MCO P5580.2A — Marine Corps Motor Vehicle Laws and Regulations (you review enforcement actions and policy compliance at the PMO level).
• —MCO 1610.7 — Performance Evaluation System (FitRep policy; you write and defend Section A on Sgts whose careers depend on what you put in the report).
• —MCO 1400.32 — Marine Corps Promotion Manual (SSgt-to-GySgt board mechanics, school slot management, and FitRep relative-value impact).
• —DODI 2310.01E — DoD Detainee Program (SSgt-level detainee operations compliance oversight — you sign the accountability reports).
• —AR 190-56 / DODI 5525.15 — DoD LE Standards (joint credentialing and training compliance; your LE training records must align with these standards at inspection).

• —Staff NCO Career Course (resident or distance) completed or scheduled — the GySgt board does not move on an SSgt without it.
• —PMO unit LE qualification rate at or above the installation standard — the provost marshal briefs the installation commander; the SSgt supervisor is responsible for the aggregate number.
• —LE credentialing records for every MP under your supervision current and documented — the IG inspection pulls training records first, not last.
• —1st-Class PFT and CFT; the SSgt who misses a 1st Class in a law enforcement formation is noted at the battalion level.
• —FitRep relative value above the PMO average — the GySgt board is FitRep-driven, and a weak SSgt cycle at E-6 moves the timeline.

• —Writing a FitRep that inflates a weak Sgt because you like him. The reporting senior cannot defend it at the board, and the next cycle the PMO officer is asking why you burned your relative value on someone who cannot lead a patrol section.
• —Letting a credentialing gap go unresolved for an operational shift. One MP working patrol with a lapsed LE credential is a suppressed prosecution and a command inquiry — the OIC will not absorb it for you.
• —Briefing the installation commander's staff with trend data you have not personally validated from the case management system. The G2 asks one follow-on question and the gap between your number and the actual number ends the briefing badly.
• —Running a deployment readiness rehearsal without a current risk assessment in the file. The line between a good field training event and an incident report is ORM documentation.
• —Hiding a PMO readiness problem from the provost marshal to look clean. He finds out from the IG or the JAG, and the SSgt who manages up instead of up-reporting is the one who absorbs the accountability.

The good 5811 SSgt runs a PMO section that clears IG credentialing inspections without a finding and delivers deployment LE packages the MAGTF G2 can actually use. The NCIS resident agency asks for this SSgt by name when a joint investigation needs a reliable patrol interface. The provost marshal already has this Marine's name in the next GySgt conversation before the FitRep board cycle opens.

You are the senior enlisted advisor to the Provost Marshal. The entire PMO runs through your decisions — policy, personnel, readiness, credentialing, deployment prep — and the installation sergeant major calls you before the PMO officer when a command-level LE issue surfaces at 0200.

You advise the Provost Marshal (typically a field-grade officer) on all enlisted LE operations, personnel actions, and unit readiness. You manage 50 to 150+ Marines across multiple shifts and sections, you write four to six SSgt FitReps per cycle, you own the unit's training and LE credentialing calendar, and you interface daily with NCIS, the installation G2, JAG, and the senior installation command. The CID (Criminal Investigation Division) mission is a significant part of your portfolio at this rank — USMC CID agents are GySgt-level and above, and if your billet is CID, you are running complex felony investigations (fraud, assault, drug trafficking, homicide) as the lead or senior investigator. For PMO billets, you are the SNCO the provost marshal puts in front of the installation commanding general to brief LE statistics, force protection posture, and deployment MP readiness. You are also actively advising your top SSgts on the MSgt-vs-1stSgt path before the next board cycle.

• 01Brief a general officer or installation commander on PMO statistics, force-protection posture, and LE readiness using current USMC reporting frameworks — no hedging, no data you cannot defend.
• 02Build and manage a PMO annual training and credentialing calendar that keeps the installation LE mission covered through a deployment cycle, a MCCRES evaluation, and an IG inspection in the same fiscal year.
• 03Write four to six SSgt FitReps per cycle with defensible relative value — the GySgt-to-MSgt board at HQMC reads your attribution rationale, and weak attribution breaks GySgts who deserved better.
• 04Lead or supervise a USMC CID complex felony investigation — from complaint intake through case referral to NCIS or federal law enforcement — if the CID billet is yours.
• 05Develop the unit's MAGTF LE deployment SOP and run the pre-deployment MP collective task rehearsals against MCWP 3-34.1 to the standard the MEF G2 will evaluate.
• 06Mentor two to three SSgts into GySgt-board-ready candidates with honest FitRep management, school nomination tracking, and a clear-eyed read on who is troop-leadership track and who is SME track.

• —MCWP 3-34.1 — Military Police in MAGTF Operations (you wrote the unit SOP from this; now you defend it at the MEF staff level).
• —MCO 1610.7 — Performance Evaluation System (FitRep policy; you sign the reports the HQMC board reads to pick the next SSgt-to-GySgt cohort).
• —MCO 1400.32 — Marine Corps Promotion Manual (GySgt-to-MSgt / 1stSgt board mechanics — you are advising your SSgts on which path).
• —NAVMC 1200.1 — MOS Manual (5811 / CID billet requirements, senior SNCO MOS roadmap, and the formal CID program criteria at the GySgt level).
• —DODI 2310.01E — DoD Detainee Program and AR 190-56 / DODI 5525.15 — DoD LE Standards (GySgt-level compliance and inspection ownership for the entire PMO).
• —MCO 5354.1 / MCO 1000.9 — SAPR and Equal Opportunity (you enforce both in the PMO formation; the IG checks both at inspection, and NCIS is already watching your unit's climate).

• —SNCO Academy Advanced Course (Career Course) graduate; Senior Course slated when the MSgt board approach.
• —PMO unit LE qualification aggregate and IG credentialing inspection results — zero findings is the GySgt standard; a finding with a corrective action plan is the floor.
• —1st-Class PFT and CFT; the GySgt's score is public information in the formation, whether you like it or not.
• —FitRep relative value profile that HQMC can defend at MSgt / 1stSgt board — the rated SSgts who deserved selection are your scorecard at this rank.
• —USMC CID program qualification (if billet is CID) — case clearance rate and investigative competency are the GySgt CID metrics the NCIS liaison watches.

• —Letting a credentialing gap survive inside the PMO because you trusted an SSgt's self-report. The IG pulls the records and the GySgt who signed the readiness certification absorbs the finding.
• —Confusing tight with the Provost Marshal with aligned with the Provost Marshal. The PMO needs you to push back honestly in his office, with the door closed — not carry his preferences back to a formation that needs correction.
• —Carrying a personal history with an NCIS agent into a joint investigation. The installation commander and the NCIS SAC talk at the same golf course; one strained case cooperation call ends up in your next FitRep comments.
• —Skipping the family readiness check because "the spouses run that." The unit health-of-the-force report the senior installation command reads includes your PMO section, and the GySgt signs the input.
• —Going around the provost marshal to the installation sergeant major on a personnel issue you should have resolved inside the PMO. You will be wrong on the facts and the installation SgtMaj will tell the PM before the end of the day.

The good 5811 GySgt is the SNCO the provost marshal sends to brief the CG's staff because the numbers are right and the posture is defensible. The NCIS resident agent in charge calls this GySgt first on any case that needs a PMO interface, and the joint investigation closes cleaner because of it. The installation SgtMaj already has this Marine's name in the next 1stSgt / MSgt conversation before the HQMC board cycle opens.

You are the standard-bearer for military law enforcement in the Marine Corps. Whether the billet is 1stSgt of an MP company, MSgt on a MEF or HQMC staff, or SgtMaj of a regiment or installation, the entire LE enterprise runs on what you decide and walk past in formation.

As 1stSgt you run the MP company or PMO enlisted formation — 80 to 200 Marines across shifts, sections, and deployment packages — managing training, evaluations, discipline, promotions, and the boundary between what the commanding officer needs and what the formation can actually deliver. As MSgt on a MEF or HQMC MP/LE staff you are the senior occupational specialist: policy writer, inspection team senior member, MOS roadmap advisor, and the enlisted subject-matter expert the staff JAG, G2, and provost marshal organizations call when the LE enterprise needs doctrinal guidance. As SgtMaj of an MP regiment, MP battalion, or installation, you advise the commanding officer on every enlisted LE decision affecting hundreds of Marines and you set the standard for the entire LE enterprise by what you walk past in formation and what you put in the FitReps of the GySgts beneath you. Post-service paths from this rank run heavily into federal law enforcement at the senior or supervisory grade: NCIS, USMS, FBI, CBP, NSA police, and DoD IG — the credentialing, investigation management, and command advisory experience at this tier is directly translatable.

• 01Run a 1stSgt's call that produces actions — accountability, LE credentialing status, shift coverage, pending UCMJ actions, family readiness, finance — in 30 minutes and without the CO having to ask a follow-up.
• 02Build a PMO company training and credentialing calendar with the commanding officer and the GySgt that survives a MEF MCCRES evaluation, an IG inspection, and a deployment work-up in the same cycle.
• 03Write and defend FitReps on five to eight GySgts per cycle — relative value attribution the HQMC board can read and defend, Section A narrative with action-result-impact, zero inflation that senior reporting officials cannot sustain.
• 04Brief the installation commanding general, MEF commanding general, or CMC staff on USMC MP / LE enterprise health — credentialing rates, investigation trends, force-protection readiness posture, deployment MP capability — with real data and no hedges.
• 05Lead or oversee a complex joint investigation or multi-jurisdictional LE operation — NCIS, federal LE, host-nation LE (OCONUS), or DoD IG — at the senior enlisted advisory or command level.
• 06Mentor the next GySgt cohort on the 1stSgt / SgtMaj vs. MSgt / MGySgt path — honest reads, not comfortable reads — so the right Marines go to the right billets and the MOS roadmap stays healthy.

• —MCWP 3-34.1 — Military Police in MAGTF Operations (you shaped the current edition's SNCO content; now you brief it at MEF and above).
• —MCO 1610.7 — Performance Evaluation System (you are the reporting senior or senior reporting official on FitReps that decide the next GySgt-to-MSgt slate).
• —MCO 1400.32 — Marine Corps Promotion Manual (MSgt / 1stSgt / SgtMaj / MGySgt board mechanics — you are advising GySgts on the path and defending the outcomes).
• —MCO 1900.16 — Marine Corps Separation and Retirement (you are the formation's resource for transition; the Marines coming to you are the ones planning the next chapter and deserve a straight answer).
• —NAVMC 1200.1 — MOS Manual (5811 / MOS roadmap at HQMC level; you are the SNCO the MOS roadmap owner consults on senior-enlisted billet structure and CID program policy).
• —The Commandant's Reading List and the current Planning Guidance — at this rank you consume strategic doctrine and translate it down to the junior MP on the gate at 0300.

• —Sergeants Major Academy (USMC SgtMaj Academy at Marine Corps University, Camp Geiger, NC) resident course completed or slated before competing for command SgtMaj designation.
• —Zero senior-enlisted integrity incidents — financial, fraternization, investigative misconduct, OPSEC. One ends the career permanently at this rank in a law enforcement MOS; the Corps does not relitigate it.
• —PMO / MP company UCMJ rate, retention rate, IG inspection result, and MEF MCCRES rating in the top tier of the battalion or regiment — the installation SgtMaj reports up against every peer 1stSgt.
• —Personal FitRep profile that HQMC can defend — the rated GySgts who get selected for MSgt and 1stSgt are your performance metric at this rank.
• —Post-service transition plan running 24-36 months out — VA disability claim filed pre-EAS, federal LE credentialing pathway identified, no retirement walked into cold. The MPs under your watch are watching how you execute your own transition.

• —Taking a public position against the commanding officer's policy in front of the formation. The disagreement happens in his office with the door closed; you walk out aligned, every time. The junior MPs need to see a unified front, even the ones who know it is complicated.
• —Confusing seniority with leverage. The USMC keeps senior enlisted in the LE enterprise who serve the formation and the mission — not the ones who build their own program off the CO's name.
• —Stopping personal PT because you are "too senior to fail." The 1stSgt who misses a 1st-Class PFT in a law enforcement formation is the story the junior MPs tell for the next two years.
• —Allowing a GySgt to run a bad LE or investigative climate because he produces results. The NCIS SAC and the installation commanding general will find out, and the SgtMaj who protected the GySgt absorbs the accountability.
• —Letting the approach to retirement feel like a long warm-up. Until you walk out of the formation for the last time, the formation is your job. The junior MP on the gate at 0300 is still watching how you carry the rank.

The good 5811 1stSgt / SgtMaj is the senior Marine every MP in the company knows by face and by decision-making — the one whose FitRep comments GySgts quote back to each other because they are that accurate. The good MSgt / MGySgt is the SNCO the provost marshal enterprise calls when the MOS roadmap, the CID program policy, or the LE credentialing framework needs someone who has lived it. Both of them are the reason the re-enlistment line forms after a hard deployment rotation, and both of them have already told the commanding officer what the next SgtMaj ought to be, in writing, before the board cycle opens.