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.

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Expert Witnesses

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Featured Experts
Charles P. Stephenson (The Orion Group )

Charles P. Stephenson (The Orion Group )

Mr.Stephenson is a former FBI Agent,FBI Police Instructor,FBI - SWAT/Firearms Instructor/Defensive Tactics Instructor, FBI Flight Instructor,FBI National Academy Instructor. He is a concealed carry firearms instructor for Kansas and Missouri. Mr. Stephenson... Learn More ›

Scott A. DeFoe (On-Scene Consulting Group, LLC)

Location: California
Areas of Expertise: Recently 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,...

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...

Michael G. Kessler, CFE, CICA, Certified Forensic Accountant (Kessler International)

Location: New York
Areas of Expertise: Michael G. Kessler is the President/CEO of Kessler International, a world-renowned consulting firm specializing in forensic accounting, computer forensics and corporate investigations. Mr. Kessler is...

Grahme Fischer, P.E. (Technical Problem Solvers, Inc.)

Location: New York
Areas of Expertise: Mr. Grahme Fischer has over 40 years of experience practicing various aspects of mechanical and forensic engineering. He has conducted and/or supervised many hundreds of accident investigations involving...

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 100 times in court or deposition, with 40 years of experience in fire department operations, fire...

Robert R. Pusins (Robert R. Pusins & Associates, Inc. )

Location: Florida
Areas of Expertise: Robert Pusins is a current law enforcement professional as an Executive Director for the Broward Sheriff's Office (FL), the largest, fully accredited sheriff's office in the US. He has over 32 years of...

James A. Williams, Ph.D., CFE (J.A. Williams, LLC)

Location: Multiple Locations
Areas of Expertise: Certified under the Daubert Challenges for Police Policy, Procedure and Training, specializing in Wrongful Death & Excessive Force. Retired DEA Chief of Organized Crime Task Forces Worldwide. Associate Member of ABA. Adjunct Professor for Law and Justice Studies.

Barry Peak, BSME, ACTAR, ASE, CFEI, CFVI, PI (ARCCA, Inc.)

Location: Multiple Locations
Areas of Expertise: Mr. Peak is a degreed mechanical engineer with experience in vehicular accident reconstruction as well the investigation of mechanical defects in consumer and industrial products with a specialty in product...

JAY SHAPIRO CPA ( Financial Expert Witness)

Location: California
Areas of Expertise: Created a CPA professional corporation specializing in serving the entertainment and media industry on an international basis including forensic accounting, income taxation,economic damage analysis, management...

Juan Ramirez

Location: California
Areas of Expertise:

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....

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...

Clement Mesavage ("Clem") (MIDSTREAM FARM LLC / usaclem@erols.com)

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...

Joseph DeMaria, Ph.D., CFC, CSHM, CHCM, DACFEI, MIIRSM (Americana Safety Associates, LLC)

Location: Nevada
Areas of Expertise: Americana Safety assists plaintiff & defense attorneys win their clients' claims. OUR ADVANTAGES We are the only nationwide firm that can provide plaintiff and defense attorneys with experienced...

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,...

R. Paul McCauley, FACFE (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....

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...

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...

Andrew Rosenzweig (Retired Lt., NYPD; retired Chief Investigator, Manhattan D.A.'s Office)

Location: New York
Areas of Expertise: For the past fifty years I’ve worked in law enforcement, in positions of increasing responsibility, including extensive experience in both the patrol and investigative functions. I have the unique perspective...

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,...

Lance Watt, M.E. (Robson Forensic Inc.)

Location: Multiple Locations
Areas of Expertise: Lance Watt Bus and Truck Expert Lance’s 45 years of transportation experience involves everything from aircraft to “stock cars” to triple tractor trailer combinations. His expertise includes vehicle...

Robert J Coventry, CPP, CHS (III) (Starside Security & Investigation, Inc.)

Location: California
Areas of Expertise: Use of Force Expert Robert Coventry, CPP is Board Certified in security management and has been a Certified Protection Professional since 1999. Mr. Coventry is a licensed in CA and Florida and has been...

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....

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...

Chris McConnell AIFA (Chris McConnell & Associates)

Location: California
Areas of Expertise: Chris McConnell AIFA® is an independent expert on the securities industry and fiduciary responsibility. He has over 31 years of experience. Since 2003 as an independent expert consultant, McConnell’s FiduciaryFORENSICS®...

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...

Larry F Stewart (Stewart Forensic Consultants, LLC)

Location: California
Areas of Expertise: Stewart Forensic Consultants, LLC is an independent laboratory and consulting firm providing investigation, forensic and litigation support to individuals, companies and firms. Our services include ink...

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...

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....

Steve R Lee (Steve Lee & Associates, LLC)

Location: California
Areas of Expertise: Forensic investigator and expert witness, Steve R. Lee, has been a driving force in winning billions of dollars of settlements, recoveries and savings for his clients. Widely recognized for his expertise...

Thomas J Lekan (Thomas Lekan Security Consulting)

Location: Ohio
Areas of Expertise: Mr. Lekan is experienced and highly competent in matters of premise security and liability. He has over twenty-five years of experience in the security field and ten years in public law enforcement. He...

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 W. Heldenbrand, P.E. (Bison Engineering, Inc.)

Location: Texas
Areas of Expertise: Legal professionals who require a high degree of excellence and integrity turn to the forensic engineers at Bison to scientifically conduct an investigation relating to a fire or explosion, electrical...

Richard Harer (Specialized Investigations)

Location: California and Texas
Areas of Expertise: Specialized Investigations areas of expertise are: Fraud, Insurance, Workers' Compensation, Surveillance, Labor & Employment, Medical, Civil, Criminal, Trial Preparation, Locates & Skiptracing, Asset Searches,...

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,...

Professor Gregory Gilbertson (Expert Witness - Private Investigator)

Location: Washington
Areas of Expertise: Moral authority matters in the courtroom. Professor Gregory Gilbertson has earned the respect of judges, prosecutors, and attorneys alike for his lifetime of public service. He is a tenured professor of...

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...