Employment Opportunity

Firearms and Toolmark Examiner

US Department of Justice, Bureau of Alcohol, Tobacco, Firearms, and Explosives, Beltsville, Maryland

Salary: $86,335 to $112,240 per year

Final Filing Date: June 4, 2020

Position are located in the Forensic Science Laboratories within the Office of Science and Technology, in Beltsville, MD. The Firearm and Toolmark Examiner serves as an analyst in the examination of firearm and toolmark evidence from criminal investigations of firearm violations, bombings, and arsons.

Duties and Requirements Click to read more


  • Performs routine firearm and toolmark examinations without technical guidance, using scientifically sound and applicable procedures.
  • Examines firearms for function testing and comparative examinations, serial number restoration, and gunshot residue testing for muzzle to target distance determination.
  • Examines ammunition components, compares examination of firearm test specimens and ammunition components to determine if they share a common source.
  • Examines post-blast debris and non-firearm related evidence for toolmarks, properly and accurately assess the tool individuality, and use proper procedures for developing test marks and the comparing of test marks with evidence marks in an attempt to determine if they share a common source.
  • Develops, examines and compares firearm and toolmark evidence and maintain working knowledge of other relevant areas of forensic science.

  • Responsibilities will increase and assignments will become more complex as your training and experience progress.


  • To qualify at the GS-12 level, you must have at least (1) one year of specialized experience at, or equivalent to, the next lower grade (GS-11).
Examples of qualifying specialized experience include:
  • Examination and comparison of handwriting, printing, typewriting, and other mechanical impressions in order to make determinations of identity or genuineness.
  • Analysis of inks, papers, and other recording instruments and materials by chemical, microscopic, and other methods in order to develop information useful in determinations of genuineness, integrity, security, origin, validity of date, or for restoration of mutilated or obliterated matter.
  • Specialized document photography and preparation of photographic exhibits to be used for court demonstration purposes, or supervision of such work.

  • Specific specialized experience to qualify for the GS-12, level for this position; preparing written laboratory reports resulting from evidence examined in criminal investigations; acting as a liaison with, law enforcement personnel, and the public on firearm and toolmark evidence and procedures; performing specific applications involving the analysis, microscopic comparisons and identification of firearm test specimens, ammunition components, and training received in processing of toolmark related evidence; performing serial number restoration; preserving evidence for laboratory analysis and comparisons; providing witness testimony based on laboratory examinations of firearms and/or toolmark related evidence.

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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