Private Investigators Expert Witnesses

Forensic & Laboratory Testing Expert Witness Listings

Private investigators (PIs) may be found by clicking on the below listed links. The private detectives found through this page may advise regarding due diligence, background investigations, and private investigations. These investigators may provide reports concerning background checks, criminal investigations, and domestic investigations. They may also provide testimony regarding information services, investigations, location services, surveillance, witness interviewing and assessment, witness location and statements, sub rosa, subrosa, private eyes, and skip traces, among other topics.

You may limit your search for Private Investigators expert witnesses to a specific area by selecting a state from the drop down box.

Expert Witnesses

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Featured Experts
Charles P. Stephenson (Orion Security Inc. )
Mr.Stephenson is a former Police Officer, FBI Agent, FBI Police Instructor, FBI - SWAT/Firearms Instructor/Defensive Tactics Instructor and FBI National Academy Instructor. Mr. Stephenson is a certified Use of Force/Firearm's Instructor for the State... Learn More ›
Lloyd Young, APS, LPI (SECURAC, INC)
Location: Texas
Areas of Expertise: Mr. Young is an alarm technician currently practicing in the field. He is a Fire Alarm Planning Superintendent (APS), a Licensed Private Investigator (LPI) and an alarm systems expert. In the business...
Robert A. Gardner, CPP
Location: Multiple Locations
Areas of Expertise: "Expert Professional Not Professional Expert" - I am a Board Certified security professional with multi-state security consultant, private patrol and private investigator "Qualified Manager" licenses....
Lesnevich & Detwiler (Lesnevich & Detwiler Forensic Document and Handwriting Laboratory)
Location: Pennsylvania
Areas of Expertise: Contact us Today! 814.793.2377 | 412.430.3887 | 215.800.0120 | E-mail: info@lesnevich.com | Website: www.lesnevich.com Lesnevich & Detwiler are forensic document experts who specialize in non-destructive...
Ron Martinelli (Martinelli & Associates: Justice & Forensic Consultants, Inc.)
Location: California
Areas of Expertise: Referred to by respected and experienced law enforcement and security civil and criminal attorneys as “The expert’s expert.” Representing agency defense and concerned plaintiff and criminal defense attorneys...
Steven Schneider (Schneider Engineering, PLLC)
Location: New York
Areas of Expertise: FORENSIC ENGINEERING: Schneider Engineering, PLLC started in 1988. It's Principal, Steven Schneider, P.E. has 45 years of experience in the traffic engineering field. They specialize in forensic traffic...
David Gossman (Gossman Forensics)
Location: Iowa and Illinois
Areas of Expertise: Gossman Forensics provides expert technical assistance to counsel in litigation involving fires and explosions, chemical and environmental forensics, hazardous waste, hazardous materials, regulatory compliance,...
R. Paul McCauley (Criminologist)
Location: Pennsylvania
Areas of Expertise: Specialist to assist plaintiff and defense attorneys in police, security, and corrections litigation. Fellow American College of Forensic Examiners and full-time (1973-2010) university professor of criminology....
Joseph A Pollini (Police Expert, Inc.)
Location: New York
Areas of Expertise: I am a retired Lieutenant Commander of the New York City Police Department, having served for more than 33 years. During my tenure with the NYPD, I have served in the ranks of police officer, detective,...
Howard Levinson, CPP (Expert Security Consulting)
Location: Massachusetts
Areas of Expertise: Howard began his security career in 1979 and has accumulated a diverse and impressive background as he has become one of the nations best known security experts. He is based in Massachusetts but available...
Clement Mesavage (
Location: Virginia
Areas of Expertise: Oil, Gas, Chemical INFRASTRUCTURE Emphasis. Bulk Liquid Terminal Consultant and pipeline System Consultant for over 40 years; experience at over 1,000 aboveground tank terminals and pipelne systems nationwide...
Todd Stefan (Setec Investigations)
Location: California
Areas of Expertise: Setec Investigations offers unparalleled expertise in computer forensics and electronic discovery, providing highly personalized, case-specific forensic analysis and litigation support services to assist...
Consolidated Consultants
Location: Multiple Locations
Areas of Expertise: Consolidated Consultants (CCc) continues to deliver high quality expert witness and medical expert witness referrals nationwide since 1995. CCc is the only referral service where you can view the full,...
Richard Sanders (CipherBlade)
Location: Pennsylvania
Areas of Expertise: CipherBlade is a team of experienced and credentialed experts and investigators for all matters involving cryptocurrency, bitcoin and blockchain technology. We are available to testify, audit, track, investigate...
John E. Kelly III (Kerberos Solutions, LLC)
Location: California
Areas of Expertise: Mr. Kelly is a Forensic Engineering Investigator with over 50 years of hands on experience with Diesel, Gasoline, Gas Turbine and Alternatively fueled engines and ancillary equipment. Mr. Kelly has expertise...
Donald J. Decker, CPP (Robson Forensic Inc.)
Location: Multiple Locations
Areas of Expertise: Police Practices & Procedures, Premises Security Expert Don is a trained and experienced police and security professional with more than 34 years of experience. His comprehensive expertise comes from...
Frank Johnson (System Engineering And Laboratories (SEAL))
Location: Texas
Areas of Expertise: Established in 1981, System Engineering And Laboratories (SEAL) specializes in providing multi-disciplined engineering and scientific consulting, product testing, safety and forensic engineering (failure...
Fred Olivares (FRED OLIVARES, CPA/CFF, PLLC)
Location: Texas
Areas of Expertise: For over 26 years, I had the honor and privilege of being a Special Agent of the Federal Bureau of Investigation. I became a SA in 1988 and was assigned to work White Collar Crime in the San Diego Division...
James F. McMullen (The McMullen Company, Inc.)
Location: California
Areas of Expertise: Fire expert James F. McMullen is the retired Chief California State Fire Marshal. He has testified over 150 times in court or deposition, with 50 years of experience in fire department operations, fire...
Grahme Fischer, P.E. (Technical Problem Solvers, Inc.)
Location: New York
Areas of Expertise: Motor Vehicle Accident Reconstruction and Forensic Engineering: Mr. Grahme Fischer has over 40 years of experience practicing various aspects of mechanical and forensic engineering. He has conducted...
Robert R. Pusins (Police Practices and Procedures Experts)
Location: Florida
Areas of Expertise: Robert Pusins is a retired (2018) law enforcement professional with over 35 years of progressive law enforcement experience including over 30 years of service with the Fort Lauderdale Police Department...
Steven Bankler, CPA, PFS, Cr.FA, CFF, CGMA
Location: Texas
Areas of Expertise: Certified in Financial Forensics – selected by the U.S. Senate as its only investigative accountant for Whitewater. Reviewed documents related to the audit of Swiss banks for holocaust victims’ assets....
Larry F Stewart (Global Forensic Services, LLC)
Location: California
Areas of Expertise: Global Forensic Services, LLC (formerly Stewart Forensic Consultants, LLC) is an independent laboratory and consulting firm providing investigation, forensic and litigation support to individuals, companies...
Chris McConnell AIFA (Chris McConnell & Associates)
Location: California
Areas of Expertise: Chris McConnell AIFA® is an independent expert whose portfolio includes but is not limited to the securities, banking and financial services industry regulatory and internal compliance, custom and practice,...
ForensisGroup, Inc. (The Expert of Experts)
Location: Multiple Locations
Areas of Expertise: For over 20 years, ForensisGroup has provided the nation’s top law firms, insurance agencies, government entities and many other industries with highly qualified expert witnesses and consultants. Experts...
Donna L. Owen (National & International Law Enforcement Consultant)
Location: Texas
Areas of Expertise: Donna Owen, a former FBI Special Agent for 28 years, now utilizes her training and experience to assist corporations, insurance professionals, and attorneys with investigations, special events security,...
Scott A. DeFoe (On-Scene Consulting Group, LLC)
Location: California
Areas of Expertise: Retired Sergeant II+1 Los Angeles Police Department Special Weapons and Tactics(SWAT). Worked numerous assignments over the past 29 years to include: SWAT, K9, Vice, Narcotics, Jail Operations, Internal...
Brooks Rugemer (Robson Forensic Inc.)
Location: Multiple Locations
Areas of Expertise: Brooks Rugemer Commercial Trucking & Warehousing Specialist 24 Hr Contact: 717-314-5855 - brugemer@robsonforensic.com I am an experienced Trucking & Warehousing Accident & Injury Investigator....
James S Cawood (Factor One)
Location: California
Areas of Expertise: Dr. Cawood is President of Factor One which is a California based corporation specializing in violence risk assessment, threat assessment, behavioral analysis, security consulting, and investigations....
Vincent A. Ettari, P.E. (Vincent A. Ettari, P.E., P.C.)
Location: New York
Areas of Expertise: Vincent A. Ettari, P.E., P.C. serves New York City & the counties of Westchester, Dutchess, Putnam, Orange, Rockland, Ulster, Suffolk (Long Island), Nassau, Bronx (N.Y.), Queens, Brooklyn / Kings County,...
Anthony Racioppo (East Coast Forensics Corp)
Location: New York
Areas of Expertise: Anthony Racioppo has been investigating motor vehicle accidents with the New York City Police Department for over 25 years. He has been assigned to the department's Highway Patrol Unit for 19 years where...
Michael P Gervais (Silent Warrior Investigations(R))
Location: California
Areas of Expertise: Silent Warrior Investigations® is a licensed and insured private investigation business located in Southern California. Our military and law enforcement trained investigator have the knowledge and training...
Dr. / Professor J. Rasty, Ph.D., PE, CFEI, CFII, President & CEO (Real World Forensic Engineering)
Location: Texas
Areas of Expertise: Since 1988, Real-World Forensic Engineering, LLC (“RWFE”) has provided engineering services to industries and government labs, as well as litigation support to both plaintiff and defense attorneys practicing...
Roy G Taylor (Taylor Law Enforcement Consulting Group)
Location: North Carolina
Areas of Expertise: Current Chief of Police with over 39 years of experience in a wide range of federal, state, local and private criminal justice leadership positions. Areas of expertise include: training; use of force...