TSA Criminal Investigator: 1811 Duties, Qualifications and Hiring
TSA Criminal Investigators develop or support federal criminal investigations involving TSA programmes, personnel, property or operations.
TSA publicly lists Criminal Investigator within Mission Support. Federal criminal-investigator positions are commonly classified in occupational series 1811, but the individual Job Opportunity Announcement controls the organisation, series, appointment authority, pay system, firearm requirement, age rule, clearance and other conditions.
This is a case-development career, not a general airport-security title. It should not be confused with Federal Air Marshal operations or Transportation Security Inspector compliance work.
This guide covers public career information. It does not provide surveillance-evasion, interview-evasion, evidence-destruction, undercover or operational investigative techniques.
Criminal Investigator at a Glance
| Topic | General current information |
|---|---|
| Common series | 1811 |
| Primary purpose | Investigate suspected violations of federal criminal law |
| Career family | TSA Mission Support / investigative functions |
| Law-enforcement authority | Defined by the appointment and vacancy |
| Firearm | Common in covered 1811 roles; announcement controls |
| Maximum entry age | Can apply to primary covered appointments |
| Special retirement | Can apply to qualifying covered positions |
| Resume | Required |
| Specialised experience | Commonly required |
| Background | Extensive investigation and adjudication |
| Clearance | Position dependent and commonly significant |
| Polygraph | Vacancy dependent |
| Travel and irregular hours | Common or possible |
What the Work Can Involve
Public-level investigative work can include allegations involving:
- fraud;
- theft;
- bribery or corruption;
- misuse of government property;
- false statements;
- threats;
- criminal employee misconduct;
- document or financial evidence;
- cyber-enabled misconduct;
- procurement or programme abuse; and
- other suspected federal offences connected to TSA interests.
Duties can include:
- receiving and assessing allegations;
- determining jurisdiction;
- developing an investigative plan;
- reviewing records;
- conducting authorised interviews;
- collecting and preserving evidence;
- coordinating forensic analysis;
- preparing reports;
- working with prosecutors;
- supporting lawful search or arrest activity;
- testifying;
- protecting sensitive information; and
- coordinating with other agencies.
The investigator must follow evidence objectively, including when it does not support the original allegation.
Criminal Investigator Versus Federal Air Marshal
A Federal Air Marshal primarily performs armed transportation-security law-enforcement missions in aviation and ground environments.
A Criminal Investigator primarily develops criminal cases through evidence, interviews, records, reports and prosecutorial coordination.
Some FAM assignments can include investigative activity, but the positions are not interchangeable and the hiring processes can differ. The FAB should not be assumed unless the investigator announcement requires it.
Read the Federal Air Marshal career guide.
Criminal Investigator Versus Transportation Security Inspector
A Transportation Security Inspector evaluates regulatory compliance and administrative violations across transportation systems.
A Criminal Investigator investigates possible federal crimes.
A regulatory inspection can identify conduct that is later referred for criminal investigation. That referral does not convert the inspector position into an 1811 role.
Read the Transportation Security Inspector guide.
Qualifications and Specialised Experience
The announcement controls the qualifying route.
Relevant evidence can include:
- criminal investigations;
- fraud or public-corruption cases;
- financial investigations;
- cyber investigations;
- military criminal investigations;
- evidence development;
- witness, subject or victim interviews;
- report preparation;
- warrant or subpoena support;
- prosecutor coordination;
- court testimony;
- case management; and
- application of criminal law and investigative policy.
Uniformed patrol, guard, screening or general security work does not automatically equal criminal-investigator experience.
A TSO or Federal Air Marshal can apply when the person meets the announcement’s requirements, but neither role creates an automatic conversion.
Education
Some entry-level federal 1811 announcements permit education, specialised experience or a combination. Senior roles normally require progressively responsible investigative experience.
A degree can strengthen an application but does not automatically replace required casework when the announcement demands specialised experience at a particular level.
Review the “Qualifications” and “Education” sections separately.
Age and Covered Law-Enforcement Service
Primary federal law-enforcement appointments can impose a maximum original-entry age because of mandatory retirement and special retirement coverage.
Exceptions can apply for:
- certain preference-eligible veterans;
- prior covered federal law-enforcement service; or
- other circumstances authorised by law or the announcement.
Do not transfer the FAM age rule automatically to every investigator vacancy. Use the exact language in the current announcement.
Firearms, Medical and Physical Conditions
Covered 1811 positions commonly require the employee to carry and qualify with a firearm.
Job-related conditions can also include:
- medical qualification;
- vision and hearing standards;
- mobility and physical capability;
- drug testing;
- defensive-tactics training;
- driver’s licence requirements;
- irregular hours;
- travel; and
- availability for law-enforcement duties.
The vacancy controls. A legal firearms prohibition can prevent qualification for a firearms-required appointment.
Background, Clearance and Polygraph
Criminal-investigator positions occupy a high level of public trust.
The process can include:
- security forms;
- fingerprints;
- records checks;
- interviews;
- references;
- financial review;
- foreign-contact review;
- national-security adjudication; and
- a polygraph when required by the vacancy.
A prior clearance does not guarantee transfer or appointment.
Resume Evidence
A federal resume should document:
- employer and location;
- job title;
- dates;
- weekly hours;
- investigative jurisdiction;
- case types;
- case complexity;
- percentage of time spent investigating when relevant;
- interviews conducted;
- evidence analysed;
- reports written;
- prosecutor or agency coordination;
- court activity;
- legal authorities used;
- leadership responsibilities; and
- measurable outcomes.
Do not disclose active cases, confidential sources, undercover identities, sealed material, classified information or protected techniques.
Interview Preparation
Prepare examples involving:
- conflicting evidence;
- a reluctant or inconsistent witness;
- an allegation that was not substantiated;
- a complex financial or digital trail;
- a jurisdictional limit;
- evidence-preservation problems;
- interagency disagreement;
- an investigative mistake;
- pressure to reach a preferred conclusion; and
- maintaining confidentiality.
Strong answers demonstrate objectivity, lawful process, documentation, judgement and willingness to correct errors.
Hiring Process
Depending on the vacancy, stages can include:
- USAJOBS application;
- qualification review;
- occupational questionnaire or assessment;
- interview;
- reference checks;
- conditional offer;
- medical and physical processing;
- drug testing;
- polygraph when required;
- background investigation and clearance;
- final selection; and
- required law-enforcement training.
There is no universal TSA Criminal Investigator test. Prepare for the assessment named in the announcement.
Pay, LEAP and Retirement
Pay can depend on:
- General Schedule grade or TSA pay band;
- locality;
- law-enforcement availability pay eligibility;
- experience;
- appointment type; and
- the final offer.
Do not assume that every TSA investigator receives the same pay arrangement as a Federal Air Marshal.
Qualifying primary 1811 appointments can receive special law-enforcement retirement coverage. The appointment’s retirement code and official benefits records control.
Working Conditions
The job can involve:
- local and overnight travel;
- irregular hours;
- emergency response;
- interviews outside ordinary business hours;
- court appearances;
- long report-writing periods;
- exposure to disturbing evidence; and
- extended case activity.
The position can include office work, but core investigative duties are not inherently remote.
Common Mistakes
Applicants often:
- treat guard or patrol work as automatically equivalent to investigations;
- omit case complexity and investigative percentage;
- claim authority they did not hold;
- disclose active or protected matters;
- ignore age or firearm conditions;
- copy vacancy language;
- omit weekly hours;
- assume TSO service guarantees qualification;
- prepare for the FAB without the vacancy requiring it;
- assume a prior clearance transfers automatically; or
- resign before receiving a final written offer.
Frequently Asked Questions
Does TSA hire Criminal Investigators?
Yes. TSA publicly lists Criminal Investigator among Mission Support careers.
Is the common series 1811?
Federal criminal-investigator roles are commonly classified in series 1811, but the announcement controls.
Is the job the same as Federal Air Marshal?
No. FAMs focus on armed transportation-security operations; investigators develop criminal cases.
Is the job the same as Transportation Security Inspector?
No. TSI work is primarily regulatory compliance; Criminal Investigator work concerns suspected federal crimes.
Is a firearm required?
Commonly for covered 1811 roles, but the vacancy controls.
Is a polygraph required?
Only when stated by the official process or announcement.
Can a TSO become an investigator?
Potentially, after obtaining the required specialised investigative qualifications.
Exploring Mission Support roles?
Use the Mission Support careers hub to compare series and education requirements. When a vacancy opens, apply through the TSA application guide and track progress with the application status guide. Many candidates start as TSOs — review the TSA test-prep hub and optional JobTestPrep TSA PrepPack.