Roger Jefferys

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 volunteered as a private investigation intern for 221B Baker, Inc. Investigative Services. He assisted with case reviews, interviews, and experimentation. His focus was on bloodstain pattern analysis and shooting 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 world.

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 multiple journals including Forensic Science International (FSI) and the Association of Firearm and Toolmark Examiners (AFTE) journals. His publications include:

• Leah Thomas, Roger Jefferys, Isabel Talley, Luis Arroyo & Tatiana Trejos, “Advancing the use of LIBS mobile technology in shooting reconstructions and firearm-related investigations,” Spectrochimica Acta Part B: Atomic Spectroscopy Journal, July 2025.
• Thomas Ledergerber, Matt Staymates, Kourtney Dalzell, Luis Arroyo, Roger Jefferys, & Tatiana Trejos, “Uncovering gunshot residue flow and deposition mechanisms using novel visualization methods, real-time atmospheric particle sampling, and spectrochemical techniques,” Analytical Methods Journal, Issue 17, April 2025.
• Keith Morris, Eric Law, Roger Jefferys, Emily Fabyanic, and Elizabeth Dearth, “An evaluation of the discriminating power of an Integrated Ballistics Identification System, Heritage System, with the NIST Standard Cartridge Case (Standard Reference Material 2461),” Forensic Science International, Volume 280, November 2017.
• Keith Morris, Eric Law, and Roger Jefferys, “Performance Comparison of an IBIS Heritage System with and IBIS TRAX HD3D System.” Association of Firearm and Toolmark Examiners (AFTE) Journal, Volume 50 Number 1, Winter 2018.

He has presented his research at both regional and national forensic conferences and has attended numerous forensic training and workshops. Some of his presentations include:

• (Scheduled) Oral Presentation, Mobile LIBS method for micro-trace evidence analysis in crime scene reconstruction, IAI Conference, Orlando, FL, August 10-16, 2025.
• Co-presented research titled, Evaluating the Effectiveness of CrimePadTM, Roger Jefferys & Rodney Montgomery, IAI Conference, National Harbor, MD, August 21-25, 2023.
• Presented research titled, Determining the Angle of Impact from the Analysis of Bullets Following the Perforation of Glass, Roger Jefferys & Keith Morris, Association of Firearm and Toolmark Examiners 49th Annual Training Seminar, Charleston, WV, June 3-8, 2018.
• Co-presented a poster entitled Statistical Analysis of Firearms: A Comparison Between the 2D and 3D Integrated Ballistics Identification System (IBIS), Keith Morris, Roger Jefferys, & Eric Law, 68th AAFS Meeting, Las Vegas, NV, February 2016.
• Co-presented a poster entitled Creating a Bayesian Network Using Normalized IBIS Scores of .357 Magnum and .38 Special Cartridge Cases, Keith Morris, Eric Law, Roger Jefferys, & Emily Fabyanic, 67th AAFS Meeting, Orlando, FL, February 2015

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 Chesapeake Bay Division - International Association for Identification (CBD-IAI).