District Attorney Investigative Assistant II (#RL3012)
$27.55-$33.49 Hourly / $4,775.87-$5,805.10 Monthly / $57,310.44-$69,661.20 Yearly


Under general supervision, performs technical and investigative work in support of the District Attorney's Office; and does related or other work as required in accordance with Rule 3, Section 3 of the Civil Service Rules.


This is the second level in the Investigative Assistant series. An employee of this class is responsible for using advanced techniques for locating witnesses, serving subpoenas for witnesses in criminal cases and for performing moderately complex investigative work as directed by sworn staff. Incumbents may be required to work irregular shifts.

This class is distinguished from the District Attorney Investigator series in that incumbents perform moderately complex investigative duties that do not require sworn peace officer status. Experience in this class does not meet the experience requirement for the District Attorney Investigator series.


  • Locates witnesses using a variety of methods; serves subpoenas for appearance in court as a State's witness; coordinates transportation of witnesses.
  • Interviews employers, families, neighbors and others to secure information regarding the location of witnesses.
  • Assists District Attorney Investigators in the investigation of less complex criminal cases including interviewing witnesses, victims and suspects, assisting investigators in searching premises, and researching information; participates in other non-peace officer functions of the Investigative Unit.
  • Testifies in court as to measures taken to locate witnesses; gives evidence that witnesses are not available; maintains contact with prosecuting attorneys during court sessions in order to serve subpoenas for additional witnesses and locate and bring witnesses to court.
  • Maintains records of subpoenas served and reports of activities and workload.
  • Delivers evidence to laboratories; transports documents and other items; maintains chain of custody.
  • Photographs crime scenes; prepares crime scene diagrams; assists attorneys in preparation of exhibits.
  • Conducts pre-employment background investigations of non-sworn staff.



Experience: Two years as a District Attorney Investigative Assistant I in San Joaquin County service.



Education: Completion of 60 semester units from an accredited college or university with emphasis in administration of justice, social or behavioral science, public or business administration, or related field.

Experience: Two years of experience conducting investigations for a law enforcement agency, district attorney office or public defender office or welfare agency at a level comparable to or higher than District Attorney Investigative Assistant I.


Substitution:  Additional qualifying experience may substitute for the education on a year for year basis.



License:  Possession of a valid California driver’s license.


Principles and techniques of interviewing; basic principles and practices of investigation; human behavior; sources of information used in locating persons; general legal procedures and terminology relating to criminal investigations.


Interpret and apply provisions of the laws applicable to criminal investigations; obtain, analyze and evaluate statements and other information; read and interpret job related materials; evaluate situations and people accurately and adopt effective courses of action; communicate effectively, orally and in writing; establish effective working relationships with others.


Mobility-Ability to sit or stand for long periods, move about an office, perform field work; reach above and below desk level; Dexterity-Sufficient to operate a key board; handle individual papers; write and take notes; Lifting-Occasional lifting of papers, files, equipment and material weighing up to 25 pounds; Visual Requirements-Ability to read case files and computer screens and do close-up work; Hearing/Talking-Ability to hear normal and faint speech, hear on the telephone and radio, talk in person, and talk on the telephone and radio; Emotional/Psychological Factors-Exposed to trauma and grief; exposure to hostile individuals; frequent public contact; ability to make decisions and concentrate, ability to work nights and overtime.

San Joaquin County complies with the Americans with Disabilities Act (ADA) and, upon request, will consider reasonable accommodations to enable individuals with disabilities to perform essential job functions.

CLASS: RL3012; EST: 6/13/2001;