• Los Angeles, California
  • Aug 30, 2020
Full Time Criminology and Forensics
  • Salary: $68,737.68 - $90,156.60 Annually USD

Job Description


With more than 10 million residents, Los Angeles County is the most populous county in the nation. As the largest employer in Southern California, over 112,000 employees in more than 36 Departments provide vital public services as diverse as law enforcement, property assessment, public health protection, water conservation, cultural activities and many more. The County of Los Angeles values diversity and is dedicated to providing equal opportunity to all qualified persons.

We will begin accepting applications Wednesday, June 12, 2019 at 8:00 a.m. until the needs of the department are met, and may close the application period without prior notice.

Who we are:
The Los Angeles County District Attorney's Office is the largest prosecutorial office in the nation, with a staff of nearly 300 sworn peace officers, known as DA investigators, who conduct some of the most unique, sensitive, and complex criminal investigations in law enforcement.

The Bureau of Investigation is the County's fourth largest law enforcement agency. Our staff also assist other law enforcement agencies with vehicular and electronic surveillance, undercover operations, and photographic services.

Who you are:
Are you dedicated to the criminal justice system and the public it serves and seeking opportunities to enhance your career in law enforcement? If you have prior law enforcement experience, and are able to demonstrate sound judgment and superior knowledge and skills in criminal justice, this is the job for you.

Essential Job Functions
What you will do:
As a DA investigator you will work under the direction of a Sergeant, D.A. to provide significant support and investigative assistance on many difficult prosecutions. Your primary function will be to provide prosecution support to the District Attorney's staff of over 1,100 deputy district attorneys. You will locate and process witnesses and conduct supplemental pretrial investigations to help strengthen the prosecution's case.
You may participate in a variety of assignments including those involving the investigation of various types of fraud (e.g., auto insurance, workers' compensation, health care, real estate, and consumer). You may also work directly with attorneys in teams engaged in specialized programs such as Justice System Integrity and Public Integrity. In your day-to-day work, you will collaborate with numerous law enforcement agencies and can be assigned to teams including DEA Narcotics Task Force, LA IMPACT, US Marshal Fugitive Task Force, Innocence Lost Task Force, Sex Crimes (SAFE) Task Force, and the US Secret Service High Tech Crimes Task Force. After successful completion of a one (1) year probationary period, you will have the opportunity to promote to the position of senior investigator.
Click here to see a detailed summary and description of job duties for this position.
  • Two (2) years of full time, permanent law enforcement experience within the last three (3) years as a peace officer as defined in Section 830.1 of the Penal Code of the State of California, or as an investigator with the Federal Government as defined by Federal Job Series 1811.
  • An Associate's degree or higher from an accredited college or university.
  • Possession of a valid California Peace Officer Standards and Training (POST) Basic Certificate or higher.
  • Open to work in any area of Los Angeles County and on any shift (evenings, nights, and weekends).

We need proof of your education and certification. The necessary documentation includes:
  • A copy of an Associate's degree or higher or official transcripts showing degree obtained from an accredited college or university.
  • A copy of your valid POST Basic certificate or higher.
All documents must be attached to your application at the time of filing or be submitted within 15 calendar days of the application filing date.

For more information on acceptable documents and how to submit click here.

If you served in the military and were honorably discharged, you may qualify for Veteran's Credit. To receive this credit, please include a copy of your form DD214 for our review.

A valid California Class C Driver License is required to perform job-related essential functions.

Successful candidates for this position will be required to submit a copy of their valid California driver license during the background investigation. License must not be suspended, restricted, or revoked.


Physical Expectations:
This job requires arduous physical effort which may involve frequent heavy lifting over 25 pounds, often combined with bending, twisting, or working on irregular surfaces; and occasionally requires extraordinary physical activity.

A DA Investigator is considered a safety position. As such, applicants must be in good general physical condition, free from any medical conditions that would interfere with the satisfactory performance as a DA Investigator. Additionally applicants must pass an extensive background check prior to receiving a job offer. Click here for more information on the background check and physical requirements.

Additional Information

Our Assessment Process:
First, meet our requirements above. After that, our process includes a two-part assessment.

Part 1: You will be given a multiple-choice assessment on the knowledge required for this job. We will assess your knowledge related to law enforcement (e.g., search and seizure, laws of arrest, and crimes), written expression, data analysis and interpretation, and reading comprehension. Pass this assessment with a score of 70% or higher to be invited to the next step.

Part 2: After passing the multiple-choice assessment, you will be invited to participate in the interview. In the interview, we will assess your technical job knowledge, work habits, and problem-solving, interpersonal, communication, and situational awareness skills. In order to be placed on the eligible employment list, you must receive a minimum score of 70% on this assessment. Your score on this part of the assessment will make up 100% of your overall score.

Once you complete the assessments, you are not able to review the multiple-choice assessment per Civil Service Rule 7.19.

If you have a disability and need accommodation to take any part of the assessment, let us know by contacting the ADA Coordinator at (213) 257-2700 or via email at, no later than five (5) days prior to your scheduled test date. The sooner you contact us, the sooner we can respond to your request and keep you moving through the process.

We offer great salary and benefit packages. Click here to see our generous benefits, and explanation of salary.

What Happens Next:
We ask that you submit an application through the "Apply" link at the top of the opportunity posting. We will notify you via email as you move through the assessment process. Therefore, please add and to your safe senders list to avoid emails filtering to your junk inbox. If you pass both parts of the assessment, we will place your name on a list, grouped in order of Band result. The list of everyone who passed the assessment is valid for 12 months.

If you have any questions, please contact us using the following information:

Exam Number: A2889C
Department Contact Name: Tanay McKnight
Department Contact Phone: (213) 257-2700
Department Contact Email:
California Relay Service Phone: (800) 735-2922
ADA Coordinator Email:
Teletype Phone: (800) 899-4099

Equal Employment Opportunity: It is the policy of the County of Los Angeles to provide equal employment opportunity for all qualified persons, regardless of race, religion, sex, national origin, age, sexual orientation, or disability or any other characteristic protected by State or Federal law. All positions are open to qualified men and women pursuant to the Americans with Disabilities Act of 1990 and the California Fair Employment and Housing Act. The County will comply with all of its obligations under State and Federal laws regarding the provision of reasonable accommodations to applicants.

Closing Date/Time: Continuous

Job Address

Los Angeles, California United States View Map