Employment Opportunity

Forensic Investigator

Pierce County Sheriff, Tacoma, Washington

Salary: $35.34 - $42.53 Hourly

Final Filing Date: Continuous

This is criminal investigation work requiring the performance of complex technical work in the identification of criminal offenders through the collection, preservation and evaluation of physical evidence obtained from crime scenes for the purpose of criminal identification and prosecution. Forensic Investigators bear primary responsibility for the physical process of crime scenes and must exercise considerable independent judgment. The quality of work performed by employees in this class weighs heavily in the success or failure of prosecution and conviction attempts.

Duties and Requirements Click to read more


  • Travel to crime scenes for the purpose of crime scene investigation, documentation and evidence collection.
  • Use independent judgment to determine evidence to be collected, including but not limited to, tool marks, latent print recovery, ballistics, soils, blood, poisons, fibers, document examination, etc.
  • Collect, process and analyze evidence, using such techniques as powders, chemicals, dyes, casting materials, various alternative light sources, and other approved methods; conduct blood spatter analysis, determine trajectories; preserve and record collected evidence.
  • Photograph and/or video tape crime scenes, including aerial photography where necessary.
  • Draw complex and accurate sketches of crime scene details, layout, dimensions, etc.
  • Scan and process 3D scans of crime scene using FARO 3D Laser Scanner and software.
  • Perform criminal identification through the comparison of crime scene latent prints to known offender inked impressions and through the use of an Automated Fingerprint Identification System (AFIS) computer.
  • Perform IBIS/Operability examination and firing of firearms and submission of spent casings to WSP Crime Laboratory.
  • Provide expert courtroom testimony in all phases of the job; prepare charts, diagrams and displays for use in Court testimony
  • Prepare written reports documenting crime scene and analysis findings.
  • Perform data entry and other tasks related to the maintenance and record-keeping of criminal identification information and the maintenance of evidence.
  • Provide or assist with inter- and intra-departmental training as needed.
  • Identify offenders booked into the jail for the purpose of accurately establishing criminal histories and for the accurate and timely service of outstanding wants and warrants.
  • Collect Felon Database DNA for Court Orders and SOR for purposes of WSP Crime Laboratory DNA Database.
  • Provide assistance and back-up support where necessary to Forensic Technician job duties.
  • Maintain regular, predictable and punctual attendance during regularly scheduled work hours at assigned worksite.
  • Perform the physical requirements of the position; work within the established working conditions of the position.
  • Work a flexible schedule, which may include evenings, weekends, holidays and overtime.
  • Safely carry and lift up to 50 pounds


  • High school graduation or G.E.D. certificate.
  • United States citizen or lawful permanent resident and the ability to read and write the English language is required by RCW 41.14.100.
  • Two (2) years of work experience in either one or a combination of the following areas is required (cannot substitute education for work experience):
    • Crime Scene Investigation - Crime scene searching; physical evidence collection, preservation and processing; crime scene sketching and crime scene photography.
    • Fingerprinting - Working knowledge of the science of friction skin with primary emphasis on fingerprint classification, searching, comparison and filing of fingerprints, including latent fingerprints. Knowledge of techniques utilized in the recovery of latent fingerprints.
  • Ability to successfully complete a Pierce County Sheriff's Department background investigation, which may include a medical physical, behavioral assessment and polygraph, is required prior to hire.
  • Ability to obtain and maintain required professional certifications is a condition of continued employment.
  • Applicants must be 21 years of age at time of appointment.
  • Valid Washington State driver's license is required at time of appointment.

Do you have the Education Required? See available on-line and campus-based degree programs now!

How to apply: Apply online

Posted: May 21, 2020

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