Employment Opportunity

Criminalist I

Alameda County Sheriff's Office, Oakland, California

Salary: $90,979.20 - $109,408.00 per year

Final Filing Date: April 10, 2023

Criminalists utilize scientific methods and techniques in the recognition, collection, and characterization of physical and digital evidence in the Crime Laboratory as well as at crime scenes. They prepare written reports regarding their findings and provide expert testimony in court. They perform related duties as required. All positions are located in the Sheriff's Office and may be subject to overtime.

Duties and Requirements Click to read more

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NOTE: The following are the duties performed by employees in this classification. However, employees may perform other related duties at an equivalent level. Each individual in the classification does not necessarily perform all duties listed.
  • Establishes and maintains competency in specialty discipline(s) where casework is assigned and performed.
  • Utilizes various analytical techniques such as photography, microscopy, wet chemistry, chromatography, mass spectrometry, spectroscopy, DNA typing, database searching, and digital media processing for the identification and comparison of evidence such as biological fluids, toxic substances, drugs, ignitable materials, digital media, firearms related items, as well as fingerprints and impression evidence.
  • Complies with established quality control procedures to ensure proper functioning of reagents and equipment.
  • Adheres to established safety standards in the preparation, storage, and disposal of chemicals and testing of evidence materials.
  • Maintains laboratory equipment, instruments, and work area.
  • Prepares materials for presentation in court; appears as an expert witness and interprets results of laboratory findings to law enforcement officers, attorneys and the courts.
  • Prepares clear, comprehensive, and accurate reports and maintains accurate records of laboratory findings through detailed notes, photographs, sketches, and maintenance of analytical data.
  • Processes crime scenes utilizing observational skills, note-taking, sketching, photography, and laser scanning in order to identify, document, and collect, and interpret evidence.
  • Assists less experienced laboratory personnel and law enforcement officers in the methods of analysis employed in the laboratory and in the methods used for collecting and preserving evidence.
  • Researches, develops, and/or evaluates methods and procedures for laboratory testing of physical or digital evidence.
  • Participate in community outreach activities such as tours, presentations, and mentoring.
  • Perform related work as required.

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  • Possession of a Baccalaureate Degree from an accredited four-year college or university with a major in Chemistry, Biochemistry, Molecular Biology, Biology, Criminalistics or a closely related physical science field.
  • Candidates for all three classes must possess a valid California Motor Vehicle Operator's License.
Special Requirements:
  • Candidate for all three classes must be found to be free of uncorrected colorblindness at the time of the County pre-employment physical examination.
  • A thorough background investigation will be conducted of all prospective Criminalists to ensure they are suitable for law enforcement related work.
  • Criminalists will be required to work day, evening, night, rotating shifts, or call back shifts including weekends and holidays.

The most suitably qualified candidates will possess the following competencies:

Knowledge of:
  • The principles of forensic science, chemistry, physics, biochemistry, microscopy, statistics, photography, and natural sciences as related to forensic laboratory examinations and crime scene processing.
  • Basic principles of operation for scientific instruments and apparatus used in forensic laboratory examinations and crime scene processing.
  • Modern criminal investigation and identification techniques and procedures.
  • Basic laboratory safety procedures.
  • Basic legal and courtroom processes.
Ability to:
  • Conduct basic chemical, instrumental, biological, microscopic, digital, and other forensic laboratory analyses as required.
  • Conduct crime scene documentation, evidence collection, and interpretation as required.
  • Present evidence clearly and accurately in court when called on as an expert witness.
  • Prepare and maintain clear, accurate, and detailed case records, statistics, and reports.
  • Provide training and assist in evaluating the work of others.
  • Follow detailed technical instruction while maintaining an exceptional level of quality.
  • Approach change positively.
  • Learn and assimilate information in a timely manner.
  • Identify issues and develop solutions.
  • Maintain focus under pressure.
  • Communicate clearly and effectively, orally and in writing, with scientists, law enforcement personnel, attorneys, the public, and the courts.
  • Work effectively in an environment in which incumbent may encounter disturbing, sensitive, or confidential situations.
  • Work effectively in a highly structured, rank-organized environment.
  • Establish and maintain effective work relationships with those contacted in the performance of required duties.
  • Work safely with a wide variety of materials which may contain biohazards and/or hazardous materials.
  • Effectively resolve analytical problems through the application of logical thought processes, consultation of the scientific literature, and/or applied research.
  • Respond to crime scenes outside of normal working hours.

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


How to apply: Apply online

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Posted: March 15, 2023

NOTE: The crime-scene-investigator.net is not responsible for typographical errors or omissions in employment notices on this web site. Often, employers change final filing dates, change duties and/or requirements, or close employment openings without notice. If you are interested in a job posted on this site be sure to contact the employer to see if changes in the filing date or job announcement have been made. Employers can also provide more information about open positions that does not appear in the announcements on these pages.