The GS-1811 Criminal Investigator series is one of the most competitive federal job series, and for good reason. These are the positions at FBI, Secret Service, ATF, DEA, NCIS, CGIS, Army CID, Air Force OSI, ICE HSI, and the inspector general offices across federal agencies. The work is real investigative casework — interviews, surveillance, evidence collection, arrests, court testimony. And veterans with law enforcement or security backgrounds are exactly who these agencies want to hire.

But wanting to hire veterans and actually hiring them are two different things. The 1811 series has unique requirements that trip up applicants who don't know about them: maximum entry age limits, mandatory physical fitness standards, polygraph examinations, and a specific way to describe your experience on a federal resume that proves you meet the specialized experience standard.

One of our Army CID agents used BMR to build his resume for an FBI special agent position. He had years of felony investigations, undercover work, and federal court testimony. His first resume barely mentioned any of it in terms the FBI's HR team could match to their qualification requirements. After rebuilding it with the right keywords and structure, he got referred and interviewed within two months.

This guide covers everything you need to know about the 1811 series: who qualifies, the age and physical requirements, how to translate military law enforcement experience, and the resume keywords that get you past the initial screening.

What Is the GS-1811 Criminal Investigator Series?

The 1811 series is OPM's classification for federal criminal investigators. These are the agents who conduct investigations into violations of federal law. Unlike the 0083 Police series (uniformed federal police) or the 1810 General Investigator series (non-criminal investigations), the 1811 series specifically covers criminal investigation work with full law enforcement authority — including the power to make arrests, execute warrants, and carry firearms.

The agencies that hire 1811s span the entire federal government. The big names get the most attention: FBI Special Agents, Secret Service agents, ATF Special Agents, DEA Special Agents, and the U.S. Marshals Service. But there are dozens of other agencies with 1811 positions that many veterans overlook.

The OIG route is especially worth knowing. Inspector General offices investigate fraud, waste, and abuse within their agencies, and they hire 1811 criminal investigators to do it. VA OIG, DOD OIG, HHS OIG, and dozens of others post 1811 positions on USAJOBS regularly. These positions are often less competitive than the marquee agencies but offer the same pay, benefits, and law enforcement retirement.

What Are the Unique Requirements for 1811 Positions?

The 1811 series has requirements that no other federal job series shares. If you're coming from the military, some of these will be familiar. Others might surprise you.

Maximum entry age: Federal law requires that criminal investigators be hired before age 37. This is because 1811s must complete 20 years of law enforcement service before the mandatory retirement age of 57. There are exceptions for veterans — if you have prior federal law enforcement experience or qualifying military service, you may receive an age waiver. Check each agency's specific policy, because this varies. Some agencies count all active-duty military time toward the age calculation; others only count law enforcement military time.

Physical fitness requirements: Every agency with 1811 positions has a physical fitness test (PFT) as part of the hiring process. The specific tests vary by agency. FBI requires push-ups, sit-ups, a 300-meter sprint, and a 1.5-mile run. Secret Service has a similar battery. DEA and ATF have their own versions. You must pass the PFT to move forward in the process, and most agencies require periodic retesting throughout your career.

Polygraph examination: Most 1811 hiring agencies require a polygraph as part of the background investigation. FBI, Secret Service, DEA, and ATF all require them. The polygraph covers both counterintelligence and lifestyle topics depending on the agency. This is not a pass/fail qualification you can prepare for with a resume — but knowing it's coming helps you plan your timeline. The full hiring process for most 1811 positions takes 8-18 months from application to entry on duty.

Medical requirements: 1811 positions require meeting specific medical standards because of the physical nature of the work. Vision, hearing, and cardiovascular fitness all have standards. Most veterans leaving active duty will meet these requirements, but get a physical exam early in the process to avoid surprises.

Your Federal Resume
Should Look Like This

We built OPM data directly into our AI so your federal resume goes beyond just matching the job announcement. It pulls in the right competencies, KSAs, and specialized experience details that get you referred — formatted in the 2-page federal layout USAJOBS expects.

OPM data built in — goes beyond the job announcement Full 2-page federal format for USAJOBS Tailored to every GS position you apply for

Build Your Resume Free

2 free resumes — no credit card required

How Does Military Experience Translate to 1811 Qualifications?

Military law enforcement and security occupations are the most direct pipeline into 1811 positions, but they aren't the only path. The specialized experience requirement for 1811 positions at the GS-5 and GS-7 level is broader than many veterans realize.

The most obvious military backgrounds are the investigative ones. Army CID agents (MOS 31D), NCIS special agents, Air Force OSI agents, and CGIS investigators perform criminal investigations that are virtually identical to what civilian 1811s do. If you were a military criminal investigator, your resume translation is mostly about reformatting your experience into federal resume language rather than translating the work itself.

Military Police, Master-at-Arms, Security Forces, and Maritime Enforcement specialists also qualify, but the translation requires more effort. Your MP experience likely included patrol operations, physical security, access control, and responding to incidents. Some of that counts as investigative experience; some of it doesn't. The key is pulling out the investigative elements: did you take witness statements? Write incident reports that were used in UCMJ proceedings? Conduct preliminary investigations before turning cases over to CID? Collect and preserve evidence? Those specific duties are what HR specialists are looking for.

Here's something many veterans miss: you don't have to come from a law enforcement MOS to qualify. OPM's qualification standard for GS-1811 at the GL-7 and GL-9 levels accepts experience in "positions that required knowledge of investigative techniques, rules of evidence, Federal laws, court procedures, and the ability to apply this knowledge to specific cases." Intelligence analysts, counterintelligence agents, and even some security specialists may qualify based on their specific duties.

What Should Your 1811 Resume Look Like?

Federal resumes for 1811 positions need to prove two things: that you meet the specialized experience requirement and that you have the specific competencies the agency is looking for. Having built resumes for veterans targeting 1811 positions across multiple agencies through BMR, the difference between referred and not-referred almost always comes down to how specifically you describe your investigative experience.

Your resume should include specific numbers wherever possible. How many cases did you investigate per year? How many interviews did you conduct? How many search warrants did you execute or help prepare? What was the dollar value of fraud cases you worked? How many arrests did you make? These numbers are what separate a resume that gets referred from one that gets screened out.

Keywords matter for 1811 positions just like any other federal job. Pull them directly from the USAJOBS announcement. Common ones include: criminal investigation, law enforcement, interviewing witnesses and suspects, search and seizure, evidence collection and preservation, case management, surveillance operations, undercover operations, federal court testimony, rules of evidence, chain of custody, report writing, case presentation.

For the federal resume length, keep it to two pages. Every line should demonstrate investigative competence. Cut anything that doesn't relate to investigation, law enforcement, or the specific competencies listed in the job announcement.

What Pay Scale Do 1811 Investigators Use?

The 1811 series uses a different pay structure than most GS positions, and it's significantly more lucrative. Criminal investigators receive Law Enforcement Availability Pay (LEAP), which is an automatic 25% pay increase on top of base salary. This is not overtime — it's a flat 25% added to every paycheck in exchange for your availability to work unscheduled duty hours.

Entry-level 1811 positions typically start at GL-7 or GL-9 (the GL scale is the GS equivalent for law enforcement trainees). With LEAP, a GL-9 agent in a high-cost area can earn over $75,000 in their first year. After training and a probationary period, agents convert to the standard GS scale and typically promote on an accelerated timeline to GS-12 or GS-13.

The 1811 series also falls under federal law enforcement retirement (FERS-LEO), which has more generous terms than standard FERS. You can retire at age 50 with 20 years of law enforcement service, or at any age with 25 years. The mandatory retirement age is 57. Your military time can count toward your law enforcement retirement if you make a deposit to the retirement fund for those years — worth calculating based on your specific situation.

Locality pay varies significantly. Agents in Washington DC, New York, San Francisco, and other high-cost areas receive locality adjustments of 30% or more on top of base pay. Combined with LEAP, a GS-13 agent in a major metro area can earn well over $150,000 per year. That's before overtime or any additional special pay for hazardous duty.

How Can You Start Your 1811 Application?

The 1811 hiring process is long and competitive. Knowing the timeline and steps helps you prepare and avoid wasting months on applications where you don't meet a basic requirement.

Your security clearance from military service can speed up part of this process. Most 1811 positions require at least a Top Secret clearance, and having a current investigation on file saves months. Make sure your clearance status is accurately stated on your resume.

Veterans preference applies to 1811 positions when they're filled through competitive service announcements. A 10-point preference for disabled veterans or a 5-point preference for other eligible veterans gives you a real advantage in the ranking process. Make sure your SF-15 and DD-214 documentation is ready before you apply.

BMR's Federal Resume Builder can help you tailor your resume to specific 1811 announcements. Paste the USAJOBS posting, and it matches your military experience to the keywords and qualification requirements in that announcement. The free tier gives you two tailored resumes, so you can target two different agencies or announcements without any cost. For a career path this competitive, having a resume that's specifically built for each announcement makes a measurable difference.