Employment Opportunity

Criminalist I/II - Firearms Examiner

San Mateo County Sheriff's Office, Redwood City, California

Salary: $81,078.40 - $126,214.40 Annually

Final Filing Date: October 3, 2019

The County of San Mateo Sheriff's Office Forensic Laboratory, which is accredited by the ANSI National Accreditation Board in both Testing and Calibration, is seeking to fill one Criminalist I/II - Firearms Examiner position within its Firearms Unit.

Successful candidates will be responsible for ensuring proper quality assurance and quality control measures relevant to firearms. This includes documentation, instrument calibration and maintenance of logs; reviewing relevant casework; maintaining the NIBIN database; continuous evaluation of methods employed including annual review of the Standard Operating Procedures and proposing new and/or modified analytical procedures to be used by the analysts.

Duties and Requirements Click to read more


  • Perform comparative analysis on evidence such as bullets, cartridge casings, and toolmarks.
  • Prepare evidence for presentation at court and appear as an expert witness to testify on the results of laboratory examinations.
  • Engage in crime scene reconstruction and collection of physical evidence at a major crime scene.
  • Take photographs and photomicrographs.
  • Participate in public relations activities such as conducting tours of the Laboratory and speaking to various interested groups.
  • Care for and maintain laboratory equipment.
  • Perform serial number restorations.
  • Perform distance determinations.
  • Ability to search the IBIS database.
  • Perform related duties as assigned.

The ideal candidate will:

  • Have a Bachelor's degree with a major in criminalistics, chemistry or a related physical science.
  • Have a minimum of three years of experience as a Firearms Examiner with experience in the microscopic examination of bullets, cartridge casings, and toolmarks; be able to perform routine and more difficult case assignments, both in the Laboratory and in the field, as needed.
  • Be dedicated to staying abreast of changes within the discipline.
  • Have the ability to provide sound technical advice and be capable of training individuals as needed.
  • Foster an environment of teamwork and cooperation.
  • An active participant in the Association of Firearms and Tool Marks (AFTE).


Education and Experience:
  • Criminalist I: Graduation from an accredited college or university with a major in criminalistics, chemistry or a related physical science.
  • Criminalist II: Three years of experience in the practice of criminalistics, which has included experience in collecting, analyzing and evaluating physiological fluids, controlled substances and other physical evidence gathered from crime scenes.
Other Requirements:
  • Participate in the Laboratory's on-call, crime scene rotation schedule.
  • Pass a detailed background investigation and pre-employment medical exam prior to appointment.
Knowledge of:
  • Current forensic methods and techniques used in the analysis and evalua¬≠tion of physical evidence likely to be used in a court case.
  • Principles of organic and inorganic chemistry, biochemistry and physiology.
  • Various types of equipment found in a forensic laboratory.
  • Courtroom procedures and testimony.
  • Recent developments, literature and sources of information relative to criminalistics and toxicology.
  • Principles of photography.
Skill/Ability to:
  • Perform physical and chemical tests commonly used in the analysis of physical evidence.
  • Use a wide variety of equipment including ultraviolet and infrared spectrophotometers, gas chromatograph, density and refractive index apparatus and various types of microscopes and cameras.
  • Understand and carry out detailed, highly technical oral and written instructions.
  • Communicate verbally.
  • Write clear, concise reports and correspondence.

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

How to apply: Apply online

Posted: September 7, 2019

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