Criminalist I & II


(Series Specification)


Class Code:  BM1, BM2

Analyst: CC, CB, JES

Date Originated: 7/14

Date Revised: 10/14, 9/18, 7/19




Under general supervision, performs duties involved in crime scene investigations and identification of evidence by performing chemical, physical, and microscopic analysis in the laboratory and in the field; interprets the results of findings; prepares materials for presentation in criminal court; appears in court as an expert witness. May specialize in at least one discipline based on agency needs: Latent Prints, Digital Evidence, Biology/DNA, Forensic Anthropology, or Firearms & Toolmarks; and performs other work as required.




Positions in this series are non-sworn civilian positions within the Sheriff’s and District Attorney’s Office. These classes are distinguished from the sworn officer classes in that persons in these classes do not carry firearms, do not hold peace officer status and responsibilities, and do not undergo peace officer training.


Criminalist I: is the entry level for the criminalist series. Incumbents initially work under supervision, and as experience is gained, they perform a broader range of duties. Incumbents perform routine forensic scientific casework, and receive a substantial amount of on-the-job training, working closely with senior staff member(s).


Criminalist II: is the journey level in the criminalist series. Incumbents independently perform professional forensic services with limited supervision, which includes a variety of skilled and semiskilled forensic work. This class differs from the Criminalist I in that it is responsible for performing technically complex and difficult forensic scientific casework in at least one forensic discipline; also included is providing training, case review, and technical advice to the Criminalist I.




·         Utilizes the instrumentation, equipment, and scientific techniques including, but not limited to, microscopy, photography, and crime scene diagramming

·         Performs laboratory analysis of physical evidence in one or more of the specialty areas of the Forensic Services Laboratory

·         Examines evidence and draws scientific conclusions in conformance with established protocols

·         Conducts crime scene investigations to recover, document, and collect all relevant physical and biological evidence, e.g. latent prints, DNA, toolmarks, footprints, firearms, impression casts, trace evidence, forensic anthropology and digital evidence associated with criminal activity

·         Creates forensic images of original digital evidence

·         Examines evidence utilizing various analytical techniques

·         Searches automated databases to aid in the identification of forensic evidence

·         Maintains documentation verifying chain of custody, case files, and records to preserve the integrity of evidence and examinations performed

·         Prepares investigative reports on laboratory analysis and results

·         Prepares and presents fair and impartial court testimony concerning findings as established by laboratory analyses and interprets findings as a qualified expert witness

·         May prepare courtroom displays and exhibits

·         Operates, calibrates, troubleshoots, and performs minor repairs and preventive maintenance on laboratory equipment and analytical instruments  

·         Interacts with law enforcement personnel to obtain information about evidence and cases

·         Studies and researches new techniques in forensic science






Criminalist I


Some knowledge of:


Criminalist II


Working knowledge of:


Some knowledge of:




Criminalist I


Criminalist II


Education and Experience/Training:

Any combination of education and experience which would provide the required knowledge and abilities is qualifying, unless otherwise specified. A typical way to obtain the knowledge and abilities would be:



Criminalist I:


Criminalist II:



Desired Qualification:


Special Requirements/Conditions:



Bargaining Unit:  41

EEOC Job Category:  02

Occupational Group:  62

Workers Comp Code:  0285