Expert Witness Directory

Find the Right Expert
for Every Case

Browse our verified directory of expert witnesses spanning medicine, engineering, finance, and dozens of specialized fields.

Medical Engineering Finance Forensic Psychology Construction Accounting Technology

Showing 343–360 of 1,756 experts

AI-powered search

Civil Engineering

HA

Hesham Ali, Ph.D., PE

President-Senior Engineer

Sunrise, Florida36 years+ yrs★ 8.7

Hesham Ali, Ph.D., PE, CPM is a civil engineering expert specializing in infrastructure design, construction management, and geotechnical engineering litigation. With a career spanning artificial intelligence, robotics, and pavement engineering, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating construction defects, assessing compliance with engineering standards, and evaluating whether proper construction management protocols were followed. Mr. Ali has been retained in numerous expert witness and consulting engagements across Florida, involving cases related to infrastructure design, construction management, and geotechnical engineering. His Ph.D. in Engineering from The City University of New York, along with certifications such as Certified Public Manager (CPM) and Licensed Professional Engineer in Florida, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving road construction, pavement engineering, and construction quality assurance.

Construction EngineeringArtificial IntelligenceRobotics+8

Trucking and Transportation

JR

John Ross

Heavy Vehicle Specialist / Expert Witness

Tucson, AZ46 years+ yrs★ 8.7

John Ross is a heavy vehicle specialist expert specializing in commercial motor vehicle cases. With a career encompassing extensive experience in trucking safety standards, driver training, and hazardous materials transport, he brings a comprehensive understanding of industry regulations and practices to his litigation work. His work centers on investigating truck driver actions and reactions, assessing compliance with Federal Motor Carrier Safety Regulations, and evaluating whether proper safety and maintenance protocols were followed. Mr. Ross has been retained in numerous expert witness and consulting engagements across the United States, involving commercial motor vehicle accidents, hazardous materials transport, and oversized load handling. His certifications as a Certified Classroom Instructor for Defensive Driving and a Licensed Private Investigator reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving trucking and transportation safety.

Truck Driver Actions, Reactions, Responsibilities, Qualifications and TrainingOperation, Inspection and Maintenance of Tractor-TrailersOversized Load Handling+1

Police Practices & Procedures

CC

Chief Chet Epperson (Ret.) MBA

Police Practice Consultant

Rockford, Illinois44 years+ yrs★ 8.7

Chief Chet Epperson (Ret.) MBA is a police practices and procedures expert specializing in police use of force, internal affairs, and officer-involved shootings. With a career spanning law enforcement leadership, policy development, and federal court-appointed consulting, he brings a comprehensive framework to analyzing police conduct and compliance with constitutional standards. His work centers on investigating police misconduct, assessing policy adherence, and evaluating whether training protocols meet legal and ethical standards. Mr. Epperson has been retained in numerous expert witness and consulting engagements across the United States, involving police use of force, wrongful convictions, and organizational assessments. His MBA in Public Administration, along with certifications such as Public Safety Disability Specialist and Public Safety Internal Affairs/Discipline Investigator: Level 1, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving police practices and procedures.

Law Enf & Criminal JusticePolice use of forceInternal affairs+12

Aviation & Aerospace

PJ

Peter J. Denucci

Distinguished DoD-Cleared UAV Pilot

San Diego, CA43 years+ yrs★ 8.7

Peter J. Denucci, Distinguished DoD-Cleared UAV Pilot is an aviation & aerospace expert specializing in mission assurance and risk management. With a career encompassing leadership roles in safety management systems, human factors, and quality assurance, he brings a strategic perspective to litigation work. His work centers on investigating compliance with safety standards, assessing risk management protocols, and evaluating whether mission assurance processes meet contractual and regulatory requirements. Mr. Denucci has been retained in numerous expert witness and consulting engagements across the United States, involving aviation safety, unmanned aircraft systems, and regulatory compliance cases. His B.S. in Aeronautical Science, along with certifications such as Airline Transport Pilot (ATP) and FAA Advanced Ground Instructor (AGI), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving aviation safety and operational compliance.

Human FactorsMission Assurance & Risk ManagementSMS/Just Culture+18

Oil and Gas

GA

Gregory A. Barnes, P.E.

Expert Witness

Houston, Texas30+ years+ yrs★ 8.7

Gregory A. Barnes, P.E. is an oil and gas expert specializing in appraisal and valuation within the upstream sector. With a career spanning strategic leadership, engineering management, and asset development, he brings a comprehensive framework for evaluating complex industry disputes. His work centers on investigating reservoir engineering practices, assessing asset valuations, and evaluating whether reserves reporting aligns with industry standards. Mr. Barnes has been retained in numerous expert witness and consulting engagements across the United States, involving oil and gas asset valuation, reservoir engineering, and enhanced oil recovery cases. His Master of Science in Petroleum Engineering from Texas A&M University, along with his Registered Professional Engineer certification in Texas, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving unconventional reservoirs and development demands.

Appraisal & Valuation

Event Recorder

RT

Robert T. McCarthy

Rail Safety and Operations Executive

Rio Rico, AZ20+ years+ yrs★ 8.7

Robert T. McCarthy is a rail safety and operations expert specializing in litigation involving Positive Train Control (PTC) design and contractor liability. With a career spanning strategic leadership in rail operations, regulatory compliance, and safety program development, he brings a comprehensive framework for analyzing systemic risk and regulatory alignment. His work centers on investigating PTC system implementations, assessing contractor liability, and evaluating compliance with federal rail safety regulations. Mr. McCarthy has been retained in numerous expert witness and consulting engagements across the United States, involving complex rail litigation and regulatory compliance cases. His Bachelor of Science in Business Administration, along with certifications such as Locomotive Engineer Class I Certified and NTSB Academy Graduate, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving rail safety and operations.

Locomotive GE/EMDPositive Train ControlTrain make-up+20

Products Liability

MR

Meyer R. Rosen

Forensic Litigation Expert

Bonita Springs, FLOver 40 years+ yrs★ 8.7

Meyer R. Rosen, CPC, CChE, E-FAIC, FRSC, DABFET is a forensic litigation expert specializing in products liability, personal injury, and intellectual property cases. With a career encompassing chemical engineering, forensic analysis, and intellectual property, he brings a multifaceted perspective to litigation work. His work centers on investigating fires and explosions, assessing hazardous chemical exposures, and evaluating whether safety standards in product design and formulation were met. Mr. Rosen has been retained in numerous expert witness and consulting engagements across both Federal and State jurisdictions, involving cases related to consumer and industrial products, chemical burns, and toxic exposures. His M.S. in Chemical Engineering from the Polytechnic Institute of Brooklyn, along with certifications such as Certified Professional Chemist and Certified Fire & Explosion Investigator (Emeritus), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving chemical technology and safety compliance.

Chemical TechnologyAccident ReconstructionFires & Explosions+5

Traffic Engineering

JS

Jeffrey Sanchez

PE, PTOE

Mesa, AZ20+ years+ yrs★ 8.7

Jeffrey Sanchez, PE, PTOE is a traffic engineering expert specializing in forensic investigations related to traffic control and roadway design. With a career spanning traffic operations, highway construction project management, and forensic analysis, he brings a multifaceted perspective to litigation work. His work centers on investigating traffic signal timing, assessing roadway distress and failure, and evaluating whether ADA compliance standards have been met. Mr. Sanchez has been retained in numerous expert witness and consulting engagements across the United States, involving traffic engineering, roadway design, and construction cases. His Bachelor of Science in Civil Engineering from the United States Coast Guard Academy, along with his Professional Traffic Operations Engineer (PTOE) certification, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving traffic control and roadway design.

Traffic Signal TimingRoadway Design and ConstructionTemporary and Permanent Traffic Control+19

Cryptocurrency investment fraud

JT

Jason T. Ghetian

President – Cyber Asset Recovery Experts, Inc; FBI (Retired)

Aliso Viejo, CA★ 8.7

Jason T. Ghetian, President – Cyber Asset Recovery Experts, Inc; FBI (Retired) is a cryptocurrency and cybersecurity expert specializing in cryptocurrency investment fraud and exchange security failures. With a career encompassing high-stakes cyber investigations and asset recovery, he brings a strategic investigative framework to litigation work. His work centers on investigating cryptocurrency fraud, assessing exchange security breaches, and evaluating whether improper token swaps have occurred. Mr. Ghetian has been retained in numerous expert witness and consulting engagements across the United States, involving cryptocurrency-related disputes, family law asset divisions, and high-tech fraud cases. His Master of Science in Cyber-Security Engineering, along with certifications such as TRM Certified Investigator and Security Certified Information Systems Security Professional (CISSP), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving digital forensics and cybercrime.

Wallet hackingExchange security failuresDivorce asset disputes+1

Fire

RB

Robert B. Rappaport

Consultant

Santa Barbara, CA32 years+ yrs★ 8.7

Robert B. Rappaport, CA P.I. Lic. No. 26789 is a fire and arson investigation expert specializing in fire origin and cause determination. With a career spanning fire service, arson investigation, and fire prevention, he brings a comprehensive investigative framework to litigation work. His work centers on investigating fire scenes, assessing liability and subrogation potential, and evaluating whether fire codes and standards were adhered to. Mr. Rappaport has been retained in numerous expert witness and consulting engagements across California, involving fire and arson cases, insurance claims, and fire prevention disputes. His B.S. degree in Business Administration, along with certifications such as Certified Fire Investigator (CFI) and Certified Fire and Explosion Investigator (CFEI), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving fire origin and cause.

Fire InvestigationArson Investigation

damages

RH

Robert H. Alexander

CPA/ABV/CFF, ASA

Oxford, MississippiOver 25 years+ yrs★ 8.7

Robert H. Alexander, CPA/ABV/CFF, ASA is a litigation support and business valuation expert specializing in financial, business, and economic damage analysis. With a career spanning roles in fraud investigation, forensic accounting, and expert testimony, he brings a multifaceted perspective to complex litigation matters. His work centers on investigating economic damages, assessing business valuations, and evaluating whether accounting standards have been met. Mr. Alexander has been retained in numerous expert witness and consulting engagements across Mississippi, Tennessee, Alabama, and Arkansas, involving cases such as accounting malpractice, economic damages, and business interruption. His Bachelor of Accountancy from the University of Mississippi, along with certifications as a Certified Public Accountant (CPA), Accredited in Business Valuation (ABV), Accredited Senior Appraiser (ASA), and Certified in Financial Forensics (CFF), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving business valuation and economic damages.

Intellectual propertyLost profitsChange of venue+14

Premises Liability

PM

Paul Malinowski

Premises Liability Expert

Littleton, CO50 years+ yrs★ 8.7

Paul Malinowski, MS, CPM is a premises liability expert specializing in property management and litigation involving slips and falls. With a career spanning urban affairs, property management, and real estate brokerage, he brings a multifaceted perspective to his litigation work. His work centers on investigating premises conditions, assessing compliance with housing regulations, and evaluating whether property management practices meet industry standards. Mr. Malinowski has been retained in numerous expert witness and consulting engagements across Colorado, involving premises liability, fair housing, and landlord/tenant disputes. His MS in Urban Affairs, along with his Certified Property Manager (CPM) designation, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving property management and premises liability.

Property Management

Biomechanics

JS

Jonathan S. Lee-Confer, Ph.D.

Assistant Professor

Tucson, AZ11 years+ yrs★ 8.7

Jonathan S. Lee-Confer, Ph.D., C.E.P. is a biomechanics expert specializing in slip, trip, and fall biomechanics and premises liability. With a career encompassing biomechanics, kinesiology, and safety standards, he brings a multidisciplinary approach to litigation work. His work centers on investigating slip and fall incidents, assessing floor slip resistance, and evaluating compliance with safety standards. Mr. Lee-Confer has been retained in numerous expert witness and consulting engagements across the United States, involving premises liability and safety standards in various industries. His Ph.D. in Biokinesiology from the University of Southern California, along with certifications such as Certified Exercise Physiologist and Occupational Safety and Health Administration 30 General, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving slip resistance and safety compliance.

Premises LiabilityKinesiology

Real Estate

JG

Jeff Goldshine

Multifamily Real Estate Consultant, Expert Witness, CPM

Chapel Hill, NC42 years+ yrs★ 8.7

Jeff Goldshine, CPM is a multifamily real estate expert specializing in property management operations and asset management. With a career spanning multifamily property management, asset management, and financial analysis, he brings a strategic perspective to litigation work involving standards of care and risk management. His work centers on investigating property management practices, assessing compliance with industry standards, and evaluating whether operational deviations have impacted asset value. Mr. Goldshine has been retained in numerous expert witness and consulting engagements across the United States, involving multifamily property management, partnership disputes, and premises liability cases. His BA in Political Science from The George Washington University, along with his Certified Property Manager designation from the Institute of Real Estate Management, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving property management and real estate operations.

Property ManagementAsset ManagementDue Diligence+11

Computers and Digital Forensics

IV

Ira Victor

Digital Forensics and Information Security Analyst

Las Vegas and Reno, NV34 years+ yrs★ 8.7

Ira Victor, BA, G2700, GCFA, GPCI, GSEC, CGEIT, CRISC is a digital forensics and information security expert specializing in computer forensics and cybersecurity litigation. With a career spanning digital evidence preservation, cybercrime response, and preventive information security, he brings a comprehensive framework to litigation work involving complex digital environments. His work centers on preserving digital evidence, assessing cybersecurity incidents, and evaluating compliance with information security standards. Mr. Victor has been retained in numerous expert witness and consulting engagements across the United States, involving cases in healthcare, retail, and technology sectors. His Bachelor of Arts Degree in Political Science, along with certifications such as G2700, GCFA, and CGEIT, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving digital forensics and information security.

Partnership and joint venture dispute issues

MK

Michael K. Ryan

President

Encinitas, CA45+ years+ yrs★ 8.7

Michael K. Ryan, MBA is a real estate litigation expert specializing in partnership and joint venture disputes, industry standards of care, and fiduciary duties. With a career spanning real estate development, brokerage, and consulting, he brings a comprehensive understanding of industry practices and standards to his litigation work. His work centers on investigating compliance with industry standards, assessing fiduciary responsibilities, and evaluating entitlement and development issues. Mr. Ryan has been retained in numerous expert witness and consulting engagements across Southern and Central California, as well as in Hawaii, Oregon, Colorado, Utah, Oklahoma, and Montana, involving real estate development and brokerage disputes. His Masters in Business Administration in Real Estate, along with California and Hawaii State Broker's Licenses and a California State Contractor’s License, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving real estate transactions and development practices.

Industry standards of care, customs and practicesNon-compliance with Industry standards for fiduciary dutiesPartnership and joint venture fiduciary duties+27

Construction Defects

SC

Scott Cohen

Owner and President

Chatsworth, CA30 years+ yrs★ 8.7

Scott Cohen, Certified Building Professional is a construction defects expert specializing in swimming pools, landscaping, and hardscape issues. With a career encompassing landscape design, pool construction, and forensic evaluation, he brings a multidisciplinary perspective to litigation work. His work centers on investigating construction defects, assessing compliance with industry standards, and evaluating whether design or installation errors contributed to failures. Mr. Cohen has been retained in numerous expert witness and consulting engagements across California, involving cases related to swimming pools, spas, and landscape design. His Ceramics Major in Ceramics, along with his Certified Building Professional designation, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving construction defects and safety compliance.

Landscape DesignSwimming PoolsLandscaping+2

Appraisal & Valuation

RB

Rachael Blackburn Cozad

Former Art Museum Director

Kansas City, MO43 years+ yrs★ 8.7

Rachael Blackburn Cozad, Certified Member — Appraisers Association of America, USPAP Certification is a Fine Art Appraisal and Valuation expert specializing in litigation involving fine art valuation and authenticity disputes. With a career spanning museum leadership, art curation, and appraisal, she brings a multifaceted perspective to her litigation work. Her work centers on investigating the provenance and authenticity of artworks, assessing the valuation of art collections, and evaluating whether industry standards in art handling and installation have been met. Ms. Cozad has been retained in numerous expert witness and consulting engagements across the United States, involving cases such as sculpture valuation, artist estate appraisals, and IRS disputes over art valuations. Her Master of Arts in Art History from California State University, Los Angeles, along with her Certified Member status in the Appraisers Association of America and USPAP Certification, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of valuation and authenticity in disputes involving fine art and related assets.

Fine Art: 19th Century European Paintings, Drawings & SculptureFine Art: American Paintings, Drawings & SculptureFine Art: Impressionist & Modern Painting, Drawings & Sculpture+4

AI-Powered Matching

Need a smarter search?

Create a free account to access our AI-powered expert matching and save your searches for future cases.

Get Started Free

Trusted by law firms, insurers, and legal teams