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Job Description

Forensic Examiner (Tool Marks)

PURPOSE: Serve as a Forensic Examiner to perform all aspects of firearms and tool mark examinations; stays abreast of the latest research to determine the best analytical methods to examine evidence; conducts examinations of highly complex and unique evidence; and composes a variety of reports and scientific papers. Initiates, performs and oversees examinations of a wide-variety of materials using one or more specialized forensic science disciplines.



  • Provide forensic analysis of evidence in cases involving multiple submissions where inter-comparison of evidence is necessary. Coordinate with other internal disciplines and outside government agencies as necessary to facilitate forensic examinations in complex cases Safeguards evidence and maintains chain-of-custody through the use of physical protocols and applicable documentation.

  • Initiate and perform the full range of analytic procedures in a forensic laboratory and field laboratory or similar settings. Procedures include examinations to identify and characterize complex evidence and provide findings in a clear and concise manner. Examination process includes the preparation of sample/s, selecting and entering instrument settings, performing scientific analyses, and tabulating results. Coordinate as necessary with outside laboratories and/or other agencies and industry.

  • Utilize and modify as necessary a variety of highly complex scientific equipment and procedures in order to obtain detailed and sometimes obscure characteristics of a wide-variety of unique evidentiary materials. Interprets findings to allow non-scientific end users to incorporate scientific findings into tactical planning and operations, research, and additional analysis.

  • Use sound scientific principles modify, adapt and develop standard methods and techniques in order to identify critical characteristics of evidence. Identify and initiate appropriate steps to solve a variety of analytical problems. Perform transfer of technology, method development and validation applicable to analysis of evidence. Identify research requirements to enhance examination methods and coordinate with the client's and other research components as necessary. Stay abreast of the latest research/developments in scientific methods to identify possible solutions to complex problems.



  • Prepare and furnish authoritative oral and written reports to facilitate investigative, intelligence, prosecution and other functions that support mission requirements. The reports will require the ability to clearly convey the opinions and findings as determined through detailed examinations and analysis. Update case management, image reference databases(e.g. IBIS, NBIN), and other information management systems as required.

  • Provide authoritative support to the client and other components within a multi-agency activity. Participate in liaison and meetings with officials from outside agencies to coordinate cases of mutual interest. May provide training regarding the analytical process and related functions consistent with the needs of the client.

  • Present court testimony regarding examination of evidence as necessary to support mission requirements.



Bachelor's degree in Physical, Forensic or Life Science, Engineering, Metallurgy or related discipline and five years of experience in one or more of the following fields: examination of lead and other metal fragments, examination and microscopic comparison of bullets, ammunition components, and firearms; examination of tool marks as having been produced by a particular tool; shot pattern examinations, gunshot residue examination, trajectory analysis, and the collection, preservation, and processing of evidence and even reconstruction and one year of experience as the lead of a team of firearms and tool mark analysts or combination of education and experience. Must have experience in using laboratory equipment and techniques involving the examination of tool marks and firearms, bullets, cartridges, shot pattern and trajectory analysis, and related activities and techniques. Must have basic knowledge of general procedures used to collect and process evidence. Must have professional, extensive knowledge of the principles, theories, and methods of microscopic and technical techniques in order to analyze complex materials; and to adapt and develop analytical and/or technical procedures. Must have knowledge of general forensic laboratory case working procedures, quality control and safety procedures; knowledge of ISO quality standards for testing/calibration laboratories and/or the standards of the American Society of Crime Lab Directors (ASCLD/LAB) Laboratory Accreditation Board. Must have a strong familiarity and working knowledge of other disciplines within a forensic laboratory to assure that examinations are consistent with accepted protocols and that casework is properly coordinated with other forensic specialties as necessary. Must have knowledge of legal procedures and rules of evidence to handle evidence appropriately and provide effective testimony. Must be capable of acquiring in-depth understanding and working knowledge of client laboratory facilities regulations, guidelines, and procedures to perform analyses and administrative functions within proscribed parameters. Must have written and oral administrative skills. May be required to complete a competency/proficiency test by the client. Must pass U.S. Government security background investigation and be able to obtain & maintain Secret security clearance. Must pass both a physical and dental examination (as required for OCONUS assignment). Must possess a current U.S. Government issued passport. Must be able to travel substantially including foreign travel.