Every year thousands of students search for a police department internship, find a single expired posting on one city website, and conclude the opportunity does not exist. It does. The problem is that criminal justice internships are spread across five entirely separate employer families, each with its own application system, its own calendar, and its own disqualifying rules, and no central board carries all of them. This guide maps all five.
It is also worth being honest about who this career path serves. A criminal justice internship is the standard entry point for police, corrections, and federal agent careers. It is equally the standard entry point for prosecutors, public defenders, and criminal defence lawyers, because the fastest way to understand a criminal case is to watch one being built. Law students and pre-law undergraduates should treat these placements as legal experience, not as a detour.
The five employer families
Municipal police departments and sheriffs' offices. The largest employer group by far. Under Bureau of Labor Statistics Occupational Employment and Wage Statistics for May 2025, police and sheriff's patrol officers numbered about 670,520 with a median annual wage near USD 76,210. Larger departments run structured cadet, explorer, or student intern programmes, often organised through a community relations or recruitment unit rather than human resources. Smaller departments take interns informally, one at a time, usually through a local college.
Prosecutors' offices. District attorney, state's attorney, and commonwealth's attorney offices run some of the most heavily subscribed internships in the country, because the work is real: interviewing witnesses, drafting motions, sitting second chair. In many states a certified law student can appear in court under supervision. The route is set out in more detail in our guide to prosecutor and district attorney careers.
Public defender and indigent defence offices. The mirror image, and frequently less competitive for the same quality of experience. Defender offices also hire investigators, a distinct and underrated route covered in public defender investigator careers.
Probation, parole, and corrections. The quietest of the five and the easiest to get into. Probation officers numbered about 89,390 in May 2025 with a median near USD 66,270. Probation internships give students something rare: sustained contact with defendants after sentencing, which is where most of the criminal justice system actually operates.
Federal law enforcement agencies. The most competitive, the most structured, and the only family with genuinely national programmes.
The federal programmes, named
Two federal routes matter most.
The FBI Honors Internship Program is the flagship. It has been published as a full time, paid, ten week summer programme placing students at FBI headquarters or across the 56 field offices. Published eligibility has required United States citizenship, full time enrolment at an accredited United States college or university, a cumulative grade point average of 3.0 or better maintained throughout, and the ability to pass the full FBI background investigation and receive a Top Secret clearance. Students who will graduate before the programme starts are generally ineligible unless they continue their education in the immediately following semester. Pay has been set at the GS-4 level for undergraduates and GS-5 for graduate students.
The Pathways Internship Program is the government wide route, run under Office of Personnel Management rules and posted exclusively on USAJOBS. It covers agencies most students never think to check: the Drug Enforcement Administration, the Bureau of Alcohol, Tobacco, Firearms and Explosives, the United States Marshals Service, the Bureau of Prisons, Homeland Security components, and the inspector general offices that sit inside almost every department. Published eligibility has required current enrolment at least half time in a qualifying programme and good academic standing, with many postings specifying a 2.5 undergraduate or 3.0 graduate grade point average. The structural advantage of Pathways is conversion: students who complete the programme successfully may be eligible for conversion to a permanent civil service position without competing again.
The clearance timeline, not the selection decision, is what most often defeats federal applicants. A background investigation for a Top Secret clearance can take many months, which is why federal summer programmes open roughly a year ahead. If you are applying in the spring for that same summer, you are already too late.
What the five families actually offer
| Employer | Typically paid | Where posted | Best for |
|---|---|---|---|
| Police and sheriff | Sometimes, often a stipend | City or county careers page, recruitment unit | Understanding how cases begin |
| Prosecutor | Often unpaid or credit only | Office website, law school career office | Courtroom exposure, trial advocacy |
| Public defender | Often unpaid, some fellowships | Office website, public interest boards | Client contact, investigation skills |
| Probation and corrections | Frequently unpaid | County government careers page | Sentencing, supervision, social policy |
| Federal agencies | Usually paid on the GS scale | USAJOBS and agency programme pages | Clearance, conversion to permanent roles |
The rules that quietly disqualify people
Four screens catch applicants who would otherwise be competitive, and all four are checkable before you spend time applying.
Citizenship. Federal law enforcement internships are generally restricted to United States citizens. Many state and local law enforcement internships apply the same rule because the department intends the internship as a recruiting pipeline.
Drug history. Law enforcement agencies apply published drug use policies that are stricter than most employers and that look back years, not months. These policies are usually posted on the agency's own careers page. Read them first.
Background and credit. A background investigation for a clearance examines finances, foreign contacts, and candour. Being untruthful on the form is treated far more seriously than the underlying conduct.
The unpaid internship rules. Public sector agencies have more room to take unpaid interns than private employers do, because Fair Labor Standards Act analysis treats genuine volunteers for a public agency differently from unpaid interns at a for profit firm. That is why prosecutor and probation internships are so often unpaid while a private firm cannot do the same thing. The mechanics are set out in our guide to fall and academic year legal internships.
The calendar
Criminal justice internship deadlines are earlier than students expect and vary enormously between the families.
Federal summer programmes typically open in the late summer or autumn of the preceding year and close within weeks. Prosecutor and defender offices in large cities often recruit for summer in the previous autumn or early winter. Police departments and probation offices are the most flexible, frequently accepting applications on a rolling basis and filling positions a semester ahead. If you have missed a federal deadline, a local placement in the same season is almost always still available.
Turning the internship into a career
The mistake is to treat a criminal justice internship as a line on a resume. Three things make it more than that.
Collect the documents you worked on. Redacted, with permission. A motion you drafted, a case summary you wrote, a chronology you built. Written evidence outperforms a job title in every subsequent application.
Ask for the reference before you leave. Prosecutors, detectives, and probation supervisors move offices constantly. Get a written reference and personal contact details on your final week, not two years later.
Decide which side you are on. Students who intern on both the prosecution and defence sides make better lawyers and much better interview candidates, because they can explain the system rather than only their part in it. If you have already done a prosecutor internship, do the defender one next, or move sideways into the courts through a judicial internship.
For undergraduates specifically, note the limits on what you are permitted to do, which are set out in our guide to undergraduate legal internships. You may not give legal advice, appear as counsel, or hold yourself out as a lawyer, and the agencies enforce this carefully.
Frequently asked questions
Do police departments actually offer internships?
Yes, though not consistently and rarely through a national board. Large municipal departments and county sheriffs' offices commonly run cadet, explorer, or student intern programmes managed by a recruitment or community relations unit. Smaller departments usually take interns through arrangements with a local college. Check the city or county careers page and the department's own recruitment page separately, because the two are often not linked.
Are criminal justice internships paid?
It depends entirely on the employer family. Federal internships under Pathways and the FBI Honors Internship Program are paid on the General Schedule. Local police internships are sometimes paid or carry a stipend. Prosecutor, public defender, and probation internships are frequently unpaid or offered for academic credit, which public agencies have more latitude to do than private employers.
Do I need to be a criminal justice major?
No. Prosecutors and defenders hire from every discipline, and federal programmes recruit across majors including accounting, computer science, languages, and law. A criminal justice degree helps for police and corrections roles. For legal careers, what matters is writing ability and judgement.
Can a non citizen do a criminal justice internship?
Federal law enforcement internships are generally restricted to United States citizens, and many state and local law enforcement programmes apply the same rule because they function as recruiting pipelines. Prosecutor offices, defender offices, legal aid organisations, and courts are more variable, so check each posting rather than assuming.
How early should I apply?
For federal programmes, roughly a year ahead, because the background investigation and clearance process is long. For prosecutor and defender offices in large cities, the previous autumn or winter for a summer placement. Local police and probation offices are the most forgiving and often recruit on a rolling basis.
Does a criminal justice internship help with law school or legal jobs?
Substantially, if you can describe what you did. Admissions committees and hiring partners respond to specific work, a suppression motion you helped research, a presentence report you summarised, a witness interview you sat in on. They respond much less to a job title with no detail attached.
The bottom line
Criminal justice internships are not scarce, they are scattered. Apply across at least three of the five employer families rather than refreshing one city page, work backwards from the federal deadlines because they are a year out, read the citizenship and drug policies before you invest time, and leave every placement with written work product and a written reference. Students who do that convert an internship into a first job. Students who do not end up with a line on a resume that no one asks about.
Ready to look? Browse current openings on our US legal internships board and US legal jobs board, and compare the adjacent routes in judicial internships and prosecutor careers.
This article is a general 2026 guide, not legal or career advice. Internship eligibility rules, pay, deadlines, and clearance requirements are set by each agency and change frequently. Verify federal programme terms with the hiring agency and USAJOBS (usajobs.gov), FBI programme terms with fbijobs.gov, Pathways rules with the Office of Personnel Management (opm.gov), and wage data with the Bureau of Labor Statistics (bls.gov). Wage figures quoted are May 2025 OEWS estimates for the occupations named, not for internships.