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Roger Jefferys

Teaching Assistant Professor, Outreach Coordinator, and Chemical Hygiene Officer

Specialties: General Forensics, Bloodstain Pattern Analysis, Photography, and Shooting Reconstruction

Roger obtained his Bachelor of Science and Master of Science degrees from the Department of Forensic and Investigative Science at West Virginia University (WVU). Prior to joining the department, Roger taught for three years in the Forensic Investigation Program at WVU Institute of Technology in Beckley, WV and received the outstanding faculty award in 2018.

During his time in Beckley, he was involved in private investigation work for 221B Baker, Inc. Investigative Services. He has experience performing defense work as it relates to bloodstain pattern analysis and shooting incident reconstruction.

Within the department, he serves as the Chemical Hygiene Officer and Director of Forensic Facilities. He is also the Instructional Coordinator for the Next Generation Forensic Science Initiative, which provides outreach opportunities to the community and students across the country.

Roger assisted in completing the “Interpretation of Cartridge Case Evidence using IBIS and Bayesian Networks” project sponsored by the U.S. Army Research Office and the U.S. Army Research Laboratory. He has also co-authored publications in the Forensic Science International(FSI) and the Association of Firearm and Toolmark Examiners (AFTE) journals. These include:
  • Performance Comparison of an IBIS Heritage System with and IBIS TRAX HD3D System
  • An evaluation of the discriminating power of an Integrated Ballistics Identification System, Heritage System, with the NIST Standard Cartridge Case (Standard Reference Material 2461)
He has presented his research at both regional and national forensic conferences and has attended numerous forensic workshops and trainings. Some of his presentations include:
  • Post-Impact Angle Determinations from Bullets Fired through Glass Targets
  • Creating a Bayesian Network Using Normalized IBIS Scores of .357 Magnum and .38 Special Cartridge Cases
  • Analyzing Firing Pin Impressions from a Mossberg Model 500 Using IBIS
  • Error Rates for the Identification of 9mm Firearms Using the IBIS
He is a member of the American Academy of Forensic Sciences (AAFS), the International Association of Bloodstain Pattern Analysts (IABPA), the International Association for Identification (IAI), and the West Virginia Criminal Justice Educators’ Association.