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Defense Investigator Jobs (NOW HIRING)

Private Investigator

Salem, OR · On-site

$24 - $27/hr

The Criminal Defense Private Investigator will be responsible for conducting investigations related to criminal defense cases. Interviews are conducted at our Salem office. Responsibilities:

Private Investigator

Salem, OR · On-site

$24 - $27/hr

The Criminal Defense Private Investigator will be responsible for conducting investigations related to criminal defense cases. Interviews are conducted at our Salem office. Responsibilities:

Private Investigator

Salem, OR · On-site

$24 - $27/hr

The Criminal Defense Private Investigator will be responsible for conducting investigations related to criminal defense cases. Interviews are conducted at our Salem office. Responsibilities:

Accident Reconstructionist

Phoenix, AZ · Hybrid

$29.25 - $38.63/hr

By delivering definitive investigative insights, you give our legal teams the clarity and leverage needed to build compelling defense narratives, dismantle opposing arguments, and secure the best ...

Accident Reconstructionist

Phoenix, AZ · Hybrid

$29.25 - $38.63/hr

By delivering definitive investigative insights, you give our legal teams the clarity and leverage needed to build compelling defense narratives, dismantle opposing arguments, and secure the best ...

Accident Reconstructionist

Phoenix, AZ · Hybrid

$29.25 - $38.63/hr

By delivering definitive investigative insights, you give our legal teams the clarity and leverage needed to build compelling defense narratives, dismantle opposing arguments, and secure the best ...

Accident Reconstructionist

Phoenix, AZ · On-site

$29.95 - $48/hr

By delivering definitive investigative insights, you give our legal teams the clarity and leverage needed to build compelling defense narratives, dismantle opposing arguments, and secure the best ...

Field Investigator

Chicago, IL · On-site

$23 - $26/hr

Advantage Surveillance is the Nation's only insurance defense investigation firm that invests in the operational capabilities necessary to produce consistent, high-quality results--ultimately helping ...

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Defense Investigator information

See salary details

$32K

$75.3K

$131K

How much do defense investigator jobs pay per year?

As of Sep 9, 2026, the average yearly pay for defense investigator in the United States is $75,325.00, according to ZipRecruiter salary data. Most workers in this role earn between $52,500.00 and $98,500.00 per year, depending on experience, location, and employer.

What is a defense investigator?

Defense Investigators are professionals who work primarily with defense attorneys to gather, analyze, and present evidence that may support the defense in criminal or civil cases. Their responsibilities include interviewing witnesses, collecting documents, visiting crime scenes, and finding information that may challenge the prosecution's case. Defense Investigators play a crucial role in ensuring that the defendant receives a fair trial by uncovering facts that may otherwise be overlooked. They often have backgrounds in law enforcement, criminal justice, or related fields and must adhere to strict ethical and legal standards. Their work can significantly influence the outcome of legal proceedings.

What are the key skills and qualifications needed to thrive as a defense investigator?

To thrive as a Defense Investigator, you need a solid understanding of criminal law, investigative techniques, and evidence handling, often supported by a relevant degree or law enforcement background. Familiarity with case management systems, surveillance tools, and public records databases is typically required. Strong analytical thinking, attention to detail, and excellent interpersonal communication skills set top performers apart in this role. These abilities are crucial for gathering accurate information, building effective defenses, and ensuring due process for clients.

What are some common challenges faced by defense investigators when gathering evidence for a case?

Defense Investigators often encounter challenges such as limited access to certain evidence, uncooperative witnesses, or navigating complex legal and ethical boundaries while conducting their investigations. They must carefully document their findings and ensure all evidence is gathered legally and ethically to be admissible in court. Additionally, working under tight deadlines and managing multiple cases simultaneously can require strong organizational and time management skills. Collaborating effectively with attorneys and other members of the defense team is also crucial to address any legal or investigative hurdles that arise.

What is the difference between Defense Investigator vs Private Investigator?

AspectDefense InvestigatorPrivate Investigator
CredentialsTypically requires security clearances, law enforcement or military background, and investigative certificationsRequires licensing, background checks, and investigative training, but generally no security clearance
Work EnvironmentOften works for defense attorneys, government agencies, or law firms, primarily in legal or courtroom settingsWorks independently or for agencies, in various settings including surveillance, background checks, and personal investigations
Employer & IndustryLegal, government, defense industryPrivate sector, legal, insurance, and individual clients

Defense Investigators focus on gathering evidence for legal cases, often working within the legal and government sectors, and may require security clearances. Private Investigators handle a broader range of personal and commercial investigations, working independently or for agencies. Both roles require investigative skills and licensing, but Defense Investigators typically have more specialized credentials related to legal and security work.

How do you become a defense investigator?

To become a defense investigator, candidates typically need a background in criminal justice, law enforcement, or related fields, along with strong investigative skills. Many employers prefer candidates with prior experience, a valid driver's license, and sometimes security clearances; certifications such as the Certified Fraud Examiner (CFE) can also be beneficial.
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Cities with the most Defense Investigator job openings:

What states have the most Defense Investigator jobs?

States with the most job openings for Defense Investigator jobs include:

What are popular job titles related to Defense Investigator jobs?

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Infographic showing various Defense Investigator job openings in the United States as of August 2026, with employment types broken down into 94% Full Time, 3% Part Time, 2% Contract, and 1% Nights. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution, with an average salary of $75,325 per year, or $36.2 per hour.

Defense Investigator - Public Defender

Tucson, AZ • On-site

$28.85 - $39.96/hr

Full-time

Posted 26 days ago


Key responsibilities

  • Interview witnesses, clients, and other persons to gather information relevant to criminal, juvenile, or dependency cases.

  • Identify, collect, and process evidence, including electronic evidence and photographs of crime scenes and items of evidence.

  • Prepare reports and documentation to support the defense in court and assist defense attorneys in building cases.


Job description

Job Description Summary
Department - Public Defense ServicesJob Description
OPEN UNTIL FILLED
Job Type: Classified
Job Classification: 5458 - Defense Investigator
Salary Grade: 12
Pay Range
Hiring Range: $28.85 - $34.25 Per Hour
Pay Range: $28.85 - $39.96 Per Hour
Range Explanation:
  • Hiring Range is an estimate of where you can receive an offer. The actual salary offer will carefully consider a wide range of factors, including your skills, qualifications, experience, education, licenses, training, and internal equity.
  • Pay Range is the entire compensation range for the position.

The first review of applications will be on 08/28/2026.
The Pima County Public Defender's Office is seeking a qualified and dedicated Defense Investigators to join its team of professionals representing adult and juvenile clients. The Defense Investigator is a skilled professional tasked with uncovering the truth and gathering evidence to support the client's defense. Duties of this position include interviewing witnesses, conducting background checks on case-involved parties, and checking the facts in police reports, all in the client's defense. Defense Investigators play a crucial role in helping defense attorneys build a strong case and are vital to ensuring a fair and just legal system.
This position performs work conducting highly complex and specialized investigations and preparing documentation for presentation in court. The duties include gathering evidence, interviewing witnesses, and analyzing case materials to support the defense in criminal cases, juvenile delinquency proceedings, and dependency proceedings. The ideal candidate should possess strong analytical skills, attention to detail, and a commitment to upholding the principles of justice.
For more information on the Pima County Public Defense Services Department and the offices in this department, please visit their website at: www.pima.gov/pds.
Essential Functions:
As defined under the Americans with Disabilities Act, this classification may include any of the following tasks, knowledge, skills, and other characteristics. This list is ILLUSTRATIVE ONLY and is not a comprehensive listing of all functions and tasks performed by incumbents of this class. Work assignments may vary depending on the department's need and will be communicated to the applicant or incumbent by the supervisor.
  • Locates, identifies, and interviews clients, witnesses, and other persons, often involving sensitive or personal issues;
  • Identifies, collects and processes evidence, including electronic evidence, as well as photographs crime scenes and other items of evidence;
  • Interprets lab reports regarding DNA, fingerprints, tool marks, and firearms;
  • Interprets specialized reports commonly used by law enforcement;
  • Prepares reports to assist in defense of clients;
  • Testifies in a variety of judicial proceedings;
  • Serves and returns subpoenas;
  • Obtains and reviews case information to determine investigative methods;
  • Utilizes social media platforms for investigative purposes;
  • Utilizes appropriate computer databases or records for investigate purposes.

Minimum Qualifications:
Bachelor's degree from an accredited college or university with a major in law enforcement, law, criminal justice or any other investigative area related to area of assignment, such as accounting, finance or computer science AND two years of investigative experience in a specialized investigative area.
(Relevant experience and/or education from an accredited college or university may be substituted.)
OR:
Five years of investigative experience, at least three years of which involved criminal investigation.
(Relevant education from an accredited college or university may substitute for a portion of the aforementioned experience.)
Qualifying education and experience must be clearly documented in the "Education" and "Work Experience" sections of the application. Do not substitute a resume for your application or write "see resume" on your application.
Preferred Qualifications: (Be specific in describing your experience in your application. Ensure the descriptions provided illustrate your competencies, specifically addressing the required and preferred qualifications.):

  • Bilingual (English/Spanish).
  • Minimum three (3) years experience in law enforcement.

Selection Procedure:
Pima County Human Resources Department reserves the right to admit to the selection process only those candidates that meet the minimum qualifications. All applications will be assessed based on an evaluation of the listed education and experience. Candidates meeting the minimum qualifications may be further evaluated/scored against any advertised Preferred Qualifications. The hiring authority will interview and select the successful candidate from a referral list provided by Human Resources. Additional assessments/testing may be required as part of the selection process.
Supplemental Information:
Licenses and Certificates: Valid driver license is required at time of application. Valid AZ driver license is required at time of appointment. The successful applicant will be subject to a 39-month DOT Motor Vehicle Record review to determine applicant's suitability to operate county vehicles in accordance with Pima County administrative procedures. Failure to obtain and maintain the required licenses and certifications shall be grounds for termination. Any offer of employment resulting from this recruitment is contingent upon Fleet Services' review and approval of the candidate's driving record.
Special Notice Items: The County requires pre-employment background checks. Successful candidates will receive a post-offer, pre-employment background screening to include verification of work history, education, and criminal conviction history. A prior criminal conviction will not automatically disqualify a candidate from employment with the County. Requires completion of a satisfactory personal background investigation to include verification of work history, education and criminal conviction history. This position will require post-job offer proof of immunization(s) or immunization(s) and/or a TB screening.
Physical/Sensory Requirements: Frequently operates a computer and other office equipment. Frequently observes details at close range. Frequently speaks to clients, witnesses, and other case involved parties, such as law enforcement agencies and businesses in-person and/or on the phone. Frequently drives to conduct field work. Regularly works in a professional office setting. Occasionally must lift and carry items. Occasionally remains in a stationary position. Occasionally moves about inside an office. Occasionally works outdoors. Action Activity - none that are essential; Motion Activity - none that are essential; Hearing Activity - none that are essential; Speaking Activity - in person and on the phone; Vision Activity - must be able to operate a motor vehicle.
Working Conditions: Regular, daily attendance is an essential function for this position. The Defense Investigator regularly receives and responds to telephone calls, text messages and emails. The Defense Investigator drives to visit clients at residence or at jail, locate witnesses and other case involved parties, and to conduct investigative field work. The Defense Investigator may work outdoors.
EEO Information: Pima County Government is an Equal Employment Opportunity employer. We are committed to an inclusive and diverse workforce and will not discriminate in employment opportunities or practices on the basis of race, color, religion, national origin, age, disability, gender, sexual orientation, kinship, political interest, or any other characteristic protected by law.