Expert Witness Directory

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Showing 361–378 of 1,756 experts

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Entomologist insect

DL

Douglas L. Seemann

Law Enforcement and Security Expert

Tucson, AZ42 years+ yrs★ 8.7

Thomas A. Shea is a law enforcement and security expert specializing in police procedures and security operations. With extensive experience in law enforcement leadership, security management, and emergency response, he brings a strategic perspective to litigation work. His work centers on investigating use of force incidents, assessing security protocols, and evaluating whether law enforcement actions adhered to established standards. Mr. Shea has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to police procedures, premises liability, and security operations. His Bachelor of Science in Administration of Justice, along with his New Jersey Police 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 standard of care in disputes involving law enforcement and security practices.

contaminationPesticideTermiticide+24

Health Informatics

WS

Walter Sujansky

MD PhD

Woodside, CA30+ years+ yrs★ 8.7

Walter Sujansky, MD PhD is a health informatics expert specializing in intellectual property and medical malpractice litigation. With a career spanning clinical informatics, software engineering, and health data standards, he brings a multifaceted perspective to litigation work. His work centers on investigating electronic health records, assessing clinical data interoperability, and evaluating whether health data standards have been met. Dr. Sujansky has been retained in numerous expert witness and consulting engagements across the United States, involving cases in the healthcare IT industry, electronic health records, and biomedical software. His MD and PhD in Medical Informatics, along with certifications in machine learning and advanced learning algorithms, 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 clinical software applications and data engineering challenges.

Software EngineeringClinical informaticsClinical data standards+3

Digital Forensics

AT

Avery Thompson

Principle Consultant

Knoxville, Tennessee20 years+ yrs★ 8.7

Avery Thompson is a digital forensics expert specializing in complex digital evidence analysis and strategic case review. With a career spanning law enforcement, telecommunications analysis, and criminal investigations, he brings a multifaceted investigative framework to his litigation work. His work centers on investigating digital communication patterns, assessing cellular data for forensic relevance, and evaluating whether telecommunications records align with case facts. Mr. Thompson has been retained in numerous expert witness and consulting engagements across the United States, involving cases of digital forensics, drug distribution, and telecommunications analysis. His Business Administration degree from the University of Alaska-Fairbanks, along with certifications such as Cellebrite Certified Operator and Cellebrite Certified Physical Analyst, 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 mobile device forensics and digital evidence interpretation.

Law Enf & Criminal JusticeCriminal InvestigationsTelecommunications Analysis

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

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

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

Engineering

PD

Peter D. Zwick

Professional Engineer and Professional Land Surveyor

Columbia Station, Ohio44 years+ yrs★ 8.7

Peter D. Zwick, PE, PS, MS Eng. is a civil engineering and land surveying expert specializing in stormwater management, infrastructure development, and site planning litigation. With a career spanning public and private sector engineering, he brings a comprehensive understanding of municipal and industrial project execution to his litigation work. His work centers on investigating stormwater management practices, assessing infrastructure compliance, and evaluating whether construction standards have been met. Mr. Zwick has been retained in numerous expert witness and consulting engagements throughout Ohio, involving cases related to stormwater management, underground infrastructure, and highway accidents. His Master of Science in Systems Engineering, along with his licenses as a Professional Engineer and Professional Land Surveyor, 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 complex engineering and surveying issues.

Land Surveying

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

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

Mechanical Engineering

MS

Mike Simard

PE, PMP, CEP

Berwyn, PA30+ years+ yrs★ 8.7

Mike Simard, PE, PMP, CEP is a mechanical engineering expert specializing in equipment failure, design defects, and industrial safety matters. With a career spanning industrial machinery, process design, and manufacturing systems, he brings a technical leadership framework to litigation work. His work centers on investigating mechanical failures, assessing design defects, and evaluating whether industrial safety standards were met. Mr. Simard has been retained in numerous expert witness and consulting engagements across the United States, involving industrial machinery performance, manufacturing systems, and process design disputes. His Master of Science in Mechanical Engineering, along with certifications as a Certified Project Management Professional (PMP) and Certified Estimating Professional (CEP), 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 mechanical systems and industrial safety.

DesignProcess EngineeringIndustrial Machinery+21

Building Inspection

JE

Jeffrey E Bartrem, C.B.I.

Building Code and Construction Expert

Williamston, Michigan50+ years+ yrs★ 8.7

Jeffrey E Bartrem, C.B.I. is a Building Code and Construction Expert specializing in premises liability and property litigation. With a career spanning building inspection, construction oversight, and code compliance, he brings a multifaceted perspective to litigation work. His work centers on investigating building code adherence, assessing construction practices, and evaluating whether negligence contributed to structural failures. Mr. Bartrem has been retained in numerous expert witness and consulting engagements across Michigan, involving wrongful death, residential and commercial structures, and fire-related cases. His BFA from Michigan State University, along with certifications such as Certified Building Inspector and Registered Building Official, 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 building code violations and construction defects.

ConstructionPremises LiabilityProperty Litigation+16

Inspection

BR

Bud Rozell

Professional Real Estate Inspector

Dallas, TX34 years+ yrs★ 8.7

Bud Rozell, ACI, TREC Inspector License #4088, Certified Applicator #561975 is a Professional Real Estate Inspection expert specializing in home and commercial property inspections, including wood-destroying insect assessments. With a career spanning inspection, new construction, and standard of care evaluations, he brings a comprehensive framework to litigation involving property disputes. His work centers on investigating inspection compliance, assessing construction standards, and evaluating whether industry practices were adhered to. Mr. Rozell has been retained in numerous expert witness and consulting engagements throughout North Texas, involving real estate, home inspections, builder client disputes, and insurance claims. His Texas Real Estate Property Inspection Certification from Texas Tech University, along with ACI Certification and TREC Inspector 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 standard of care in disputes involving home inspection and real estate practices.

New ConstructionStandard Of CarePre-Pour Inspections+17

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

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

Aquatics Safety

MA

Matthew A. Reynolds

P.E.

Highlands Ranch, CO25 years+ yrs★ 8.7

Matthew A. Reynolds, P.E. is an aquatics safety and accident reconstruction expert specializing in drownings and other injuries related to aquatics. With a career encompassing swimming pool design, aquatic codes, and standard of care, he brings a comprehensive understanding of the intricacies involved in aquatic-related incidents. His work centers on investigating drowning incidents, assessing swimming pool equipment failures, and evaluating whether aquatic facilities adhere to industry standards. Mr. Reynolds has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to swimming pools, spas, aquatic amusement rides, and natural bodies of water. His Bachelor of Science in Civil Engineering from Loyola Marymount University, along with certifications such as Aquatic Facility Operator and Certified Pool/Spa Operator, 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 aquatic safety and equipment design.

ConstructionDrownings and other injuries related to aquaticsSwimming pool, spa, and related equipment design+1

Education & Schools

DW

David Wolowitz

J.D.

Greenland, NH48 years+ yrs★ 8.7

David Wolowitz, J.D. is an Education & Schools expert specializing in school safety and educator misconduct litigation. With a career spanning legal practice, school safety, and educator misconduct, he brings a nuanced understanding of the complexities involved in school-related legal disputes. His work centers on investigating educator misconduct, assessing school safety protocols, and evaluating whether standard of care violations have occurred. Mr. Wolowitz has been retained in numerous expert witness and consulting engagements across the United States, involving cases of educator misconduct, school safety, and Title IX violations. His Juris Doctor from the University of Michigan, along with his licenses in Massachusetts and New Hampshire, 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 school safety and educator misconduct.

School Safety

Police Practices & Procedures

DK

Dr. Ken Lang

Consultant and Associate Professor

Milligan, Tennessee37 years+ yrs★ 8.7

Dr. Ken Lang, Ph.D. is a criminal justice and forensic art expert specializing in criminal investigations, violent crimes, and police practices and procedures. With a career that encompasses extensive law enforcement experience and academic contributions, he brings a multifaceted perspective to litigation work. His work centers on investigating criminal incidents, assessing police conduct, and evaluating forensic art applications in legal contexts. Dr. Lang has been retained in numerous expert witness and consulting engagements across the United States, involving cases of violent crime, police conduct, and forensic art analysis. His Ph.D. in Criminal Justice from Walden University, along with certifications from the Maryland Police Training Commission and the FBI, 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 and responsibility in disputes involving criminal investigations and police practices.

Law Enf & Criminal JusticeCriminal InvestigationsViolent Crimes+3

Discrimination

MB

Matthew B. Ross

Associate Professor

Boston, MA17 years+ yrs★ 8.7

Matthew B. Ross, Ph.D. is an economics and public policy expert specializing in discrimination, disparate impact, and racial profiling litigation. With a career spanning labor economics, public sector program evaluation, and empirical tests for disparity, he brings a robust analytical framework to litigation work. His work centers on investigating racial bias in policing, assessing the impact of public safety policies, and evaluating whether disparities in law enforcement practices exist. Mr. Ross has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to police practices, racial bias, and public safety policies. His Ph.D. in Economics, along with his extensive research and advisory roles, 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 racial profiling and police benchmarking.

Disparate ImpactDisparate TreatmentRacial Bias+23

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