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Geological Materials Subcommittee

Members of the OSAC Geological Materials Subcommittee
Members of the OSAC Geological Materials Subcommittee (July 2019)

The Geological Materials Subcommittee focuses on standards and guidelines related to the collection, analysis, reporting, and interpretation of soils and other geological materials.

Officers  |  Members  |  OSAC Registry Approved Documents  |   Documents in Process  |  Research & Development Needs  | Discipline-Specific Baseline Documents | Presentations


Andrew Bowen, Subcommittee Chair, U.S. Postal Inspection Service

Brad Lee, Ph.D., Subcommittee Vice Chair, University of Kentucky 

Kim Mooney, Ph.D., Subcommittee Executive Secretary, U.S. Army Criminal Investigation Laboratory


Christopher Bernhardt, Ph.D., U.S. Geological Survey

Ethan Groves, Microtrace LLC

Jack Hietpas, Ph.D., U.S. Federal Bureau of Investigation

Wayne C. Isphording, Self-employed

Heather Lowers, U.S. Geological Survey

Alex Rugh, Colorado Bureau of Investigation

Ian Saginor, U.S. Federal Bureau of Investigation

William Schneck, Self-employed

Michael A. Smith, U.S. Federal Bureau of Investigation

Libby Stern, Ph.D., FBI Laboratory

David Szymanski, Ph.D., Bentley University

Roadmap of Documents

OSAC Registry Approved Documents

  • None currently.

Documents in Process

Under Development:

  • Standard Guide for the Analysis of Soils and Other Geological Evidence for Criminal Forensic Applications.
  • Standard Guide for Using Scanning Electron Microscopy for Morphology and Energy Dispersive Spectroscopy in Forensic Soil and Geological Materials Analysis.
  • Standard Guide for the Use of Polarized Light Microscopy in the Forensic Examination and Comparison of Geological Sediments.
  • Standard Guide for the Analysis of Forensic Geological Materials by Powder X-Ray Diffraction. 

Work Product Sent to SDO:

The Geological Materials Subcommittee, in collaboration with the University of Kentucky, the FBI, and the IUGS-Initiative of Forensic Geology have developed a Forensic Soil Evidence Collection Training Video to accompany the draft Standard Guide for the Collection of Soils and Other Geological Evidence for Forensic Applications. Learn more about this project by reading our news story

SDO Published:

  • None currently.

Entered OSAC Registry Approval Process:

  • None currently.

Research & Development Needs

Discipline-Specific Baseline Documents

  • None at this time.


  • None at this time.

In general, the development of standards and guidelines is transitioning from the Scientific Working Groups (SWGs) to the OSAC. Some SWGs will continue to operate to provide other resources within their discipline. The existing SWG documents will remain in effect until updated documents are disseminated by the OSAC or the SWG. SWGDAM will retain the responsibility for updating the FBI DNA Quality Assurance Standards.

– Forensic Science Standards Board: March 2015

Created July 9, 2014, Updated January 16, 2020