Deborah Stonebarger

Deborah Stonebarger, BS is a Criminalistics Subject Matter Expert specializing in forensic science and crime scene investigation. With a career encompassing forensic firearms analysis, DNA and biological fluids, and controlled substances, she brings a multidisciplinary approach to her litigation work. Her work centers on investigating crime scenes, assessing evidence integrity, and evaluating whether forensic procedures adhere to industry standards.

Ms. Stonebarger has been retained in numerous expert witness and consulting engagements across California and Arizona, involving criminal defense cases, forensic laboratory audits, and evidence collection disputes. Her Bachelor of Science in Biological Sciences with a minor in Chemistry, along with her certification in Comprehensive Criminalistics, Diplomate status from the American Board of Criminalistics, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving forensic evidence and crime scene investigations.