Criminalist Expert Witnesses

Laveen, Arizona

Forensic Science, Firearms & Ballistics - Crime scene, DNA, Evidence, Biology, Chain of Custody, Controlled substances, DUI, Blood alcohol analysis, Criminalist, Forensic Quality Assurance, Evidence collection, Evidence integrity, Firearm Identification

Previously certified in Comprehensive Criminalistics by the American Board of Criminalistics, Deborah Stonebarger provides rigorous evaluation of forensic evidence, laboratory analyses, crime scene processing, and evidence collection. She has provided expert testimony in crime scenes, evidence collection and evidence integrity, forensic firearms identification, blood and breath alcohol analysis including impairment, and crime lab procedures. She assists in identifying errors and helps to support defense strategy. Deborah worked for 16 years for the California Department of Justice Bureau of Forensic Services. She helped process DNA samples to build California’s Offender DNA Database while working at the DNA laboratory, and was a recipient of the Attorney General’s Team award for this endeavor. She also worked at regional laboratories in Eureka, California and Redding, California where she assisted with crime scene processing and evidence testing for numerous law enforcement age...

Newark, California

Forensic Science, Criminalist - Certified Fingerprint Analysis & Comparison, Fingerprint Recovery and Processing, Forensic Photography, Expert Witness Testimony, Notary Thumb Print Comparison, Forensic Photo Analysis & Authentication, Cert. Crime Scene Investigation & Analysis, Crime Scene Shoeprint Analysis, Crime Scene Reconstruction Experts

Kourosh Nikoui Chief Forensic Examiner & Consultant IAI Certified Latent Print Examiner • IAI Certified Senior Crime Scene Analyst • IAI Certified Forensic Photographer With over 38 years of direct, full-time experience in forensic identification and crime scene investigation, I offer expert witness and consulting services for criminal and civil cases nationwide. As the founder and Chief Forensic Examiner of Nikoui and Associates, FISC, LLC, I have personally handled over 30,000 cases since 1985, bringing a depth of knowledge built on three decades of service in law enforcement combined with 15 years of dedicated private practice. My mission is to provide impartial, meticulous, and scientifically sound analysis to ensure the integrity of the evidence is upheld. I am court-qualified and internationally certified, delivering clear, defensible findings to support your case. My services are comprehensive, covering the full spectrum of forensic identification. I personally conduct all...

Fair Oaks, California

Forensic Science, Criminalist - Forensic Case Review and Consultation, Gunshot Residue, Fire Debris Analysis, Fabric and Fibers, paint and polymers, Tape, Glass, General Physical and Chemical Unknown Material, Physical Fit Analysis, Bloodstain Pattern Interpretation and Analysis, Crime Scene Investigation and Reconstruction

Forensic science expert with over 30 years of experience in multiple forensic science disciplines. Provider of Forensic Laboratory Consultation and Development Planning. Over 20 years of instruction and training experience in multiple forensic science disciplines. Extensive expertise as a forensic science expert and has provided forensic case review and forensic expert witness testimony in more than 500 cases. Retired laboratory director of a nationally accredited forensic laboratory. Qualified forensic expert and forensic consultant in trace evidence, crime scene processing, and crime scene reconstruction. Subject matter expert technical assessor for ANAB - ISO/IEC 17025:2017 (AR 3125) Forensic Laboratory Accreditation Assessments. Comprehensive general criminalistics certification from the American Board of Criminalistics (ABC).

CINCINNATI , Ohio

Jails & Prisons, Criminalist - Corrections, Prisoner Rights, Prisoner Assaults, Prison, Jail, Ohio

Bill Hamann, J.D., D.Min practiced law in Cleveland for 18 years before going into the Ohio prison system for 12 years. During his time inside five Ohio prisons, Bill worked closely with Deputy Wardens, Major, Captains, Lieutenants, Correctional Officers, Institutional Inspector, Chaplains and other prison staff. Bill became very familiar with all aspects of prison operations, rules. administrative regulations and disciplinary procedures for inmates and staff. During two years as a library law clerk, Bill drafted inmate grievances, appeals from Rules Infraction Board decisions, Motions for new trials, appeals, and scores of Habeas Corpus petitions, two of which were successful and resulted in release. Nobody understands the machinations of the Ohio prison system better than Bill. Email or call now to review your case. You'll be glad you did!

Mansfield, Texas

Criminalist - Forensic Criminology, Forensic Data Analysis, Law Enforcement Patterns & Practices, Criminologist, Criminal Justice, Law Enforcement, Correctional Data Oversight, Jail Incident Reporting, Independent Monitoring Board Consultant, Corrections, Use of Force Analysis, Correctional Oversight, Biased Policing, RMS/IMS Auditing

I am a Practitioner-Scholar specializing in the forensic audit of institutional patterns and practices across the criminal justice spectrum. My expertise focuses on evaluating the data integrity and procedural compliance of public safety agencies, correctional facilities, and oversight bodies. By leveraging a tiered methodological approach—ranging from descriptive statistics and Cross-Tabulations to advanced Logistic and Multinomial Regression—I identify systemic deviations within internal records management systems (RMS), Inmate Management Systems (IMS), and NIBRS reporting. I translate complex quantitative findings and longitudinal trends into clear, defensible narratives for use by legal counsel, public defenders, and independent monitoring boards in civil and criminal litigation. Fee schedule available upon request. Standard hourly rates apply for review, deposition, and trial testimony.