District Attorney Investigator

County of Orange
Full Time $117,020 - $158,184 Per year CA Orange County District Attorney, 300 N Flower St, Santa Ana, CA 92703, United States



This recruitment is being held to establish an open eligible list to fill current and future vacancies in the Orange County District Attorney's Office. This recruitment may also be used to fill positions in similar and/or lower classifications throughout the County of Orange. 
This recruitment will remain open on a continuous basis until the needs of the hiring department have been met.  All applicants are encouraged to apply immediately as this bulletin can close at any time.
(OCDA-PA) represents the People of the State of California in criminal and civil proceedings in the Superior Court of California and appellate courts of the state. The mission of the OCDA-PA is to enhance public safety and welfare and to protect and respect crime victims and to create security in the community through the vigorous enforcement of criminal and civil laws in a just, honest, efficient and ethical manner. THE BUREAU OF INVESTIGATION:
The Orange County District Attorney’s Office – supports the prosecutorial and law enforcement endeavors of the District Attorney. It provides a wide range of policing services tasked with suppressing crime and ensuring all criminal cases filed in Orange County are thoroughly investigated.

The District Attorney-Public Administrator is seeking aDrug Recognition Expert (DRE) Investigator to work as a case agent on drug-impaired driving related cases. A DRE Investigator will also serve as an instructor for all county-wide agencies so that officers can maintain their DRE certification. The Bureau is seeking individuals who are:
  • Self-motivated
  • Effective communicators
  • Team players able to successfully partner/work with District Attorney legal staff, local and State police agencies, forensic toxicologists, and concerned federal agencies
  • DRE Certification
  • Three (3) to five (5) years of experience as a DRE Instructor
  • First-hand experience with administering a DRE school, including curriculum planning and instructor identification and scheduling
  • Familiarity with the OCDA – DUID (Driving Under the Influence of Drugs) Collaborative Grant program and objectives, including having taken or taught DRE courses regarding the grant model
  • Prior experience testifying in court as a DRE
  • Knowledge of current drug trends, Pharmacokinetics of alcohol and drugs, updates in philosophy or practice from NHTSA and the DRE Technical Advisory Panel
  • Superior teaching and organizational skills
  • Approachability and flexibility
  • Exceptional judgment and common sense
  • Ability to apply forward-thinking and creative thought with high ethical standards
  • Thorough knowledge of courtroom procedures as well as investigative techniques and methods
Special Qualifications
  • Possess a valid state of California P.O.S.T. certificate (basic, intermediate, advanced, supervisory or management).
  • Graduated from a state of California P.O.S.T. certified peace officer regular basic course academy
  • Modular format (reserve) training will not be considered
  • Drug Recognition Expert Card 
  • Drug Recognition Expert Rolling Log 
All applicants who have filed an application, must scan, upload, and attach their California P.O.S.T. certificate (Basic, Intermediate, Advanced, Supervisory, or Management) as well as their DRE Card and DRE Rolling Log to the application. 
[Failure to immediately attach your certificates may result in an incomplete application which may not be accepted]
Please clickfor the minimum qualifications for the District Attorney Investigator. 
The County of Orange is committed to providing a means for applicants who may have a disability to identify areas in which they may request a reasonable accommodation. The following is a description of the physical and mental abilities which are customarily required to perform the essential job functions of this position. Applicants are encouraged to contact the recruiter listed in the announcement for any questions or to request an accommodation during the testing/selection process. 

Physical and Mental Characteristics:

Ability to perform active law enforcement role, body strength sufficient to effect arrest and control of suspects; independent body mobility to effectuate arrest, drive a vehicle, perform various law enforcement related searches, access a standard office; vision sufficient to read typed and handwritten documents, to read computer screen and to drive a vehicle; manual dexterity to accomplish handgun qualification, to operate police vehicles and radios, operate a computer keyboard to complete reports and do informational queries; stamina to enter, drive and exit a vehicle several times in one day, in all forms of weather conditions, ability to speak and hear well enough to converse in person and on the phone.

Mental stamina for complex problem solving and dealing with stressful situations; ability to recall and recreate detailed conversation or events, interpret and apply oral/written instructions; remain alert and coherent to take action or to decide alternative courses of action under routine, highly stressful, or environmentally difficult conditions.

Environmental Conditions:
Will be required to work office and field investigative assignments, use personal vehicle for travel (with mileage reimbursement), conduct field investigations, interview hostile or uncooperative individuals, conduct fixed and moving surveillance, travel outside of Orange County. 
RETIREMENT RECIPROCITY:Current employed members of accepted reciprocal systems who were in those retirement systems prior to January 1, 2013, and who have not retired from those systems, may be eligible for previous OCERS formula of 3% at age 55 for safety members.

  • Membership in the Orange County Employees Retirement System (OCERS). For more information, please call (714) 558-6200 or visit

In addition to the County's standard suite of benefits such as: a choice of several health plans, dental and vision insurance, paid vacation, paid holidays, we also offer:

  • Highly competitive salary
  • Option of participating in the 457b Deferred Compensation Plan. For more information, please visit
  • Annual Leave (paid-time off accrual)

For specific information regarding Medical and Dental benefits for

members, please call (714) 285-9900.

The County offers a competitive benefits package which includes a choice of several health plans, annual leave (includes paid vacation) and paid holidays. Additionally, the County provides a retirement plan, which has reciprocity with the Public Employees Retirement System (PERS). Participation in a deferred compensation plan is available. The County also offers up to $10,000 annual Educational and Professional Reimbursement.

  • For detailed information on benefits .
  • For detailed information on OCERS retirement

In addition to the monthly starting pay of $


, candidates receive P.O.S.T. pay commensurate with the level of P.O.S.T. certificate the candidate possesses.

Additional compensation up to 70 cents ($0.70) per hour may be available for candidates selected to work in positions requiring the following bilingual skills:

  • Spanish/English: Ability to speak, read, write, and understand fluent Spanish and English.
  • Vietnamese/English: Ability to speak, write, and understand fluent Vietnamese and English.

The Office of the District Attorney Human Resources screens all applications to identify the qualified candidates. After screening, qualified candidates will be referred to the next step and notified of all further procedures applicable to their status in the competition. After all the test procedures have been completed, the District Attorney's Human Resources will establish an eligible list of qualified candidates.

The recruitment procedure will consist of the following steps. Each step will require a few weeks to complete.

Application Appraisal Panel: (Weighed 100%) 

Application materials will be rated by a panel of job knowledge experts for those qualifications most needed to perform the duties of the job. The more qualified candidates will be referred to the next step. This is a competitive process; therefore, be thorough in your responses.

Eligible List

Once the assessment has been completed, District Attorney Human Resources will establish an eligible list of candidates. Only the most successful candidates will be placed on the eligible list. Candidates placed on the eligible list may be referred to a selection interview to be considered for present and future vacancies.

Based on the Department's needs, the recruitment procedure listed above may be modified. All candidates will be notified of any changes in the recruitment procedure.