Employment Opportunity

Forensic Scientist I

St. Charles County Police Department, O'Fallon, Missouri

Salary: Starting Salary: $43,275.45 per year

Final Filing Date: Applications will be accepted on a continuing basis until the position is filled or a sufficient number of qualified candidates have applied.

The purpose of this position is to perform analysis of physical evidence and submit lab reports. The work is performed under the supervision of the Crime Laboratory Director.

Duties and Requirements Click to read more


  • Examines and analyzes a variety of physical evidence from criminal cases and prepares laboratory reports.
  • Primary duties involve the processing, collection and analysis of seized drug evidence and resultant conclusions and interpretations.
  • Other types of analyses may include alcohol, biological/DNA, and firearm-related examinations. Operates and maintains laboratory instruments which may include: Gas Chromatograph / Mass Spectrometer (GC/MS), Fourier Transform Infrared Spectrometer (FTIR), Gas Chromatograph (GC), balances, microscopes, Alternate Light Source (ALS), pH meters, and computers.
  • Conducts assigned examinations and experiments utilizing well defined methods and a variety of scientific tools, equipment, instrumentation and techniques.
  • Participates with senior examiners to decide the nature and extent of examinations to be conducted on more complex materials and items of evidence.
  • Assigned to coordinate routine to moderately complex matters related to scope of analyses with other laboratory units, outside agencies, and related entities.
  • Logs evidence in and out of the laboratory.
  • Participates in continuing training and education.
  • Maintains current knowledge of appropriate forensic science testing procedures, methods and relevant issues.
  • Performs research and participates in discipline appropriate proficiency testing.
  • Reviews available forensic science and related journals and publications.
  • Provides expert testimony in court, at hearings and depositions.
  • Assists with the development of laboratory procedures and methods.
  • Performs method and equipment verification and validation.
  • Assists with public presentations regarding crime lab activities.
  • Conducts forensic training.
  • Answers phone calls and performs general custodial tasks. Performs related duties as assigned.
  • Prepares necessary reagents, indicators, standards, and calibrators required for forensic testing.
  • Conducts instrument maintenance, calibration and upgrades.
  • Assists with the laboratory’s internship and job shadow programs.
  • On-call for crime scene evidence, forensic technical assistance and priority physical evidence analysis.


  • Bachelor's degree
  • Chemistry, Biology or Natural Science
  • A Type I Permit from the Missouri Department of Health and Senior Services is required if blood alcohol concentration (BAC) cases are analyzed.
Job Experience
  • 1-5 years of experience
Knowledge, skills and abilities
  • To perform DNA testing on casework (DNA Analyst or DNA Technical Leader), the educational, training, experience and continuing education requirements delineated in the most recent Forensic DNA Audit document must be met.
  • Must successfully complete a competency test and specialized training in specific forensic discipline(s) prior to performing casework.
  • Must maintain proficiency in practicing disciplines through successful completion of appropriate proficiency testing.
  • Working knowledge of computers and relevant software applications including word processing, spreadsheets, databases, etc.
  • Employment is contingent on successfully passing a full criminal background check.

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


How to apply: Apply online

″As I have found a job (through this newsletter!) working in the field of forensics, I no longer need a job newsletter. Thank you!” — Amber Click to receive job posting alerts

Posted: February 9, 2022

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