expert witnesses
Forensics Expert Witnesses: 21
Audio Forensic Expert David Smith
David A. Smith, IEEE, AES
PA USA
phone: 814-410-4787
Computer Forensic Expert Todd Stefan
Todd Stefan
Executive Vice President
8391 Beverly Blvd. #167
Los Angeles CA
90048
USA
phone: 800-748-5440
Forensic Science Expert George Schiro
George Schiro, MS
DNA Technical Leader - Forensic Scientist
220 Woodgate Dr. S.
Brandon MS
39042
USA
phone: 337-322-2724
Forensic Psychology Expert Witness Ray Kim
Ray S. Kim, Ph.D.
Forensic Psychologist
2300 Barrington Road, Suite 400
Hoffman Estates IL
60169
USA
phone: 847-309-7475
fax: 847-984-9292
Audio Video Forensic Analysis Expert Witness Nick Barreiro
Nick Barreiro, BAC, AVFA, DIVRT, AFCE
Chief Forensic Analyst
6688 Nolensville Rd
Suite 108-129
Brentwood TN
37027
USA
phone: 615-854-8055
Hazardous Waste Pollution Expert Dennis Stainken
Dr. Dennis Stainken
Principal
4 Carrol Drive
Hillsborough NJ
08844
USA
phone: 908-369-6890
fax: 908-369-6881
Software and ERP Expert Witness Steve Ditty
Steve Ditty
Software Expert Witness
Denver CO USA
phone: 720-798-1710
Forensic Meteorology Expert David Mitchell
Dr. David L. Mitchell
Consulting Forensic Meteorologist
P.O. Box 70
Dayton TX
77535
USA
phone: 936-257-1633
fax: 936-258-4237
Psychoeducational Expert Steve Imber
Dr. Steve C. Imber
Ph.D.
Sprout Building
166 Valley Street
Providence RI
02909
USA
phone: 401-421-4004
fax: 401-233-0946
Analysis Audio Video Voice Image Forensics Expert Witness
Jonathan Broyles
Sr. Forensic Examiner
18695 Pony Express Drive #490
Parker (Denver Metro Area) CO
80138
USA, International
phone: 303-805-5301
fax: 303-841-7386
Stewart Forensics Experts
Larry Stewart
Chief Forensic Scientist
793A E. Foothill Boulevard, #200
San Luis Obispo CA
93405
USA
phone: 805-595-1333
Forensic Geoscience Expert David Mitchell
David L. Mitchell
Ph.D.
P.O. Box 70
Dayton TX
77535
USA
phone: 936-257-1633
fax: 936-258-4237
Fingerprints Expert Witness David Goodwin
David Goodwin
Owner / Director
8 The Sidings
Irthlingborough Northamptonshire
NN9 5RZ
GBR
phone: 44-0-7846-401211
fax: 44-0-1604-533409
Materials Engineering Expert Lester Engel
Lester B. Engel Jr., PE, CEO
James A. Brusso, PhD, PE
925 Industrial Drive South
Sauk Rapids MN
56379
USA
phone: 1-800-258-7968 -or- 320-253-7968
fax: 320-253-7917
Criminal Justice Expert Ron Martinelli
Dr. Ron Martinelli
PhD, CMI-V
Martinelli & Associates: Justice & Forensic Consultants, LLC
316 Hoskins Trail, Boerne, TX 78006
CA, TX
USA
phone: 951-719-1450
Featured resources
by Colin Evans
by By Richard N. Anderson (Editor) & Richard W. Mclay (Editor)
by Michael Levine
George Schiro is a DNA Technical Leader - Forensic Scientist. His duties include incorporating the DNA Advisory Board (DAB) standards, accountability for the technical operations of the lab, conducting DNA analysis using the 13 STR core loci and Y STR in casework, DNA research, forensic science training and crime scene investigation.
Nick Barreiro, BAC, AVFA, DIVRT, AFCE, Chief Forensic Analyst, is a Certified Audio Video Forensic Analyst and an FBI-trained member of the Digital Imaging and Video Recovery Team. During his 15-year law enforcement career, he was a patrol sergeant, technology project manager, media forensics expert, detective, digital evidence specialist, and patrol officer. Prior to his career in law enforcement, Mr. Barreiro was an audio engineer and producer in California. He also worked for KBMB radio in Sacramento and has extensive experience and training in audio enhancement and analysis.
With more than 27 years of experience in Big 4 consulting, Steve Ditty is a distinguished Software Expert Witness specializing in ERP software litigation, software failure analysis, and expert testimony. His expertise spans enterprise software implementation, project management, and litigation support, making him a key figure in complex ERP lawsuits. As a testifying expert, he has played a critical role in high-stakes disputes across North America, Europe, and Asia.
GEO Associates provides litigation support services and expert witness testimony for civil and criminal investigations and insurance industry cases (both plaintiff and defendant) that involve Groundwater Pollution and Data Analysis, Forensic Geology and Geophysics, Hydrology Modeling, and Forensic Meteorology including Weather Event Re-Construction and Force Majeure cases. GEO Associates can assist attorneys and insurance claim professionals in obtaining, analyzing, modeling, and interpreting the correct geophysical/geological and meteorological data for their case.
Principal, Lester P. Engel, Jr., PE, is a Metallurgical Engineer with over 40 years of experience leading the company's detailed, quality-focused testing and services. He oversees the company's lab, continually adding new equipment and techniques.
James A. Brusso, PhD, PE, has more than 20 years of experience in processing/properties of materials, materials characterization and behavior, materials specifications, mechanical testing, failure analysis, machining of materials, and laboratory design and operation. He is also Engel Metallurgical's Technical Manager and Quality Manager.

