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

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Firearm

Richard K. Pumerantz, Ph.D.

Ammo, Firearm, & Shooting Reconstruction Expert

Lake Arrowhead, California8.1

Richard K. Pumerantz, Ph.D. is an Ammo, Firearm, & Shooting Reconstruction Expert specializing in ammunition identification and classification, firearm design and manufacturing, and shooting incident reconstruction. With a career encompassing ammunition design, ballistic trajectory analysis, and toolmark examination, he brings a multifaceted forensic perspective to litigation work. His work centers on investigating cartridge failure, assessing ballistic trajectories, and evaluating whether firearms meet safety and design standards. Mr. Pumerantz has been retained in numerous expert witness and consulting engagements both in the United States and internationally, involving civil and criminal matters related to firearms and ammunition. His Ph.D. in Higher Education, along with certifications such as Crime Scene Investigations and Glock Certified Law Enforcement Armorer, 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 firearm and ammunition failures.

AmmunitionBallisticGun+29
Engineering

Bonneau H. Dickson Jr., P.E.

Consulting Sanitary Engineer

Berkeley, CA40 years+ yrs8.1

Bonneau H. Dickson Jr., P.E. is a Consulting Sanitary Engineer expert specializing in forensic engineering and expert witness testimony. With extensive experience in water and wastewater facility design, he brings a comprehensive understanding of environmental engineering challenges to litigation work. His work centers on investigating system failures, assessing compliance with engineering standards, and evaluating whether design omissions contributed to infrastructure issues. Mr. Dickson has been retained in numerous expert witness and consulting engagements across California, involving cases such as residential leakage, wastewater treatment failures, and sewer system analysis. His M.S. in Sanitary Engineering from Georgia Institute of Technology, along with his Civil Engineer certification in California (#19491), 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 water treatment systems, septic failures, and sewage contamination.

EnvironmentalWater and Wastewater Facility DesignForensic Engineering+3
Emergency Medicine

Martin J Landa, MD

Auto Accident Expert Physician/Engineer

Miramar Beach, FL30 years+ yrs8.1

Martin J Landa, MD is an Auto Accident Expert Physician/Engineer specializing in injury causation analysis in motor vehicle collisions. With a career that spans emergency medicine and engineering, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating injury mechanisms, assessing impairment ratings, and evaluating whether medical records align with expert medical opinions. Dr. Landa has been retained in numerous expert witness and consulting engagements across Florida, Georgia, and Alabama, involving motor vehicle collision cases and related injury assessments. His MD from the University of Utah School of Medicine, along with his Board Certification in Emergency Medicine, 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 biomechanics and mechanism-of-injury assessments.

Engineering
Fire and Engineering

Jeffery P. McBride

Principal Fire Protection Engineer

Baltimore, MD40 years+ yrs8.0

Jeffery P. McBride, PE is a Fire Protection Engineering expert specializing in life safety and code compliance litigation. With a career spanning fire protection system design, hazard analysis, and code consulting, he brings a comprehensive understanding of fire dynamics and safety protocols to his litigation work. His work centers on investigating fire suppression system failures, assessing compliance with fire and building codes, and evaluating whether life safety standards have been met. Mr. McBride has been retained in numerous expert witness and consulting engagements across the United States, involving fire protection engineering, life safety, and code compliance cases. His Master of Engineering in Fire Protection from the University of Maryland, along with his State Certified Building Inspector 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 causation in disputes involving fire protection systems and life safety code adherence.

Fire Protection EngineeringLife SafetyCode Compliance
Engineering

Frank Allen Comer

Professional Engineer, Principal Engineer

Kansas City, MO41 years+ yrs8.0

Frank Allen Comer, PE is a forensic engineering expert specializing in civil, structural, geotechnical, and environmental engineering disputes. With a career spanning engineering design, construction oversight, and forensic investigations, he brings a multidisciplinary perspective to litigation work. His work centers on investigating structural failures, assessing construction defects, and evaluating whether building code violations have occurred. Mr. Comer has been retained in numerous expert witness and consulting engagements across the Midwest, involving cases related to building inspections, construction defects, and failure analysis. His Bachelor of Science in Civil Engineering, along with certifications such as OSHA 40-Hour HAZWOPR and ACI Concrete Testing, 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 structural integrity and construction practices.

Construction EngineeringCivil EngineeringStructural Engineering+2
Electrical Engineering

Joseph Castagna

Electrical Engineer - Construction Defect

Miami, Florida36 years+ yrs8.0

Joseph Castagna is an electrical engineering expert specializing in construction defect litigation. With a career spanning various domains such as automatic transfer switches, generator sets, and power quality analysis, he brings a comprehensive framework to litigation work. His work centers on investigating power system failures, assessing compliance with backup power system standards, and evaluating whether electrical inspections meet industry regulations. Mr. Castagna has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to hospital backup power systems, co-generation, and solar power installations. His ongoing Bachelor of Science and Master of Science degrees in Electrical Engineering - Power Systems, along with certifications such as California Certified General Electrician and Federal Communications Commission - Amateur Radio 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 electrical engineering and electricity.

Electricity
Fire and Electrical Engineering

ZYGMUNT STASZEWSKI, M.Sc. PE FSFPE

Expert Witness

Floral Park, NY34 years+ yrs8.0

ZYGMUNT STASZEWSKI, M.Sc. PE FSFPE is a Fire and Electrical Engineering expert specializing in fire protection and system failures. With a career spanning fire protection engineering, electrical systems, and safety compliance, he brings a comprehensive framework to litigation work. His work centers on investigating fire system failures, assessing compliance with fire codes, and evaluating whether fire prevention measures were adequate. Mr. Staszewski has been retained in numerous expert witness and consulting engagements across the United States, involving fire protection systems, electrical engineering, and safety compliance cases. His M.Sc. in Electrical Engineering, along with certifications such as Licensed Professional Engineer (NY, CT, CO) and NICET III Technician in Fire Alarm Technology, 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 protection and electrical systems.

Software Engineering

Dustin G. Domerese

Technology Leader and Entrepreneur

Kansas City, MO8.0

Dustin G. Domerese is a technology and software development expert specializing in CRM and ERP system implementation and customization. With a career spanning business operations, software engineering, and strategic corporate system architecture, he brings a comprehensive framework to litigation work involving complex technology integrations. His work centers on investigating system architecture deviations, assessing software customization impacts, and evaluating whether user adoption strategies align with industry standards. Mr. Domerese has been retained in numerous expert witness and consulting engagements across the United States, involving technology integration and software development disputes in industries such as manufacturing, finance, and government. His Microsoft PL200 certification, along with Dynamics CRM 2016 Applications Certification and Scribe Online Level II 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 CRM and ERP system implementations.

Information TechnologyMicrosoftConsulting+14
Cast-in-place

L. Fredrick (Fred) Nolta

Construction Expert

San Diego, CA40+ years+ yrs8.0

L. Fredrick (Fred) Nolta, BS Construction Engineering is a construction expert specializing in construction defects and claims. With a career spanning over 40 years in cast-in-place, pre-stressed precast, and post-tension concrete, he brings a comprehensive understanding of construction methodologies to his litigation work. His work centers on investigating construction defects, assessing compliance with building codes, and evaluating whether construction delays have occurred. Mr. Nolta has been retained in numerous expert witness and consulting engagements across California, involving construction defect cases, structural engineering disputes, and construction management issues. His BS in Construction Engineering from Arizona State University, along with his California State licensed contractor classifications in “A” Engineering, “B” Building, and “C-8” Concrete, 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 delays.

Pre-stressed precastPost-tensionSlip-form / jump-form building core concrete+12
civil

John Hlinka, P.E.

President and Principle Engineer

Benton, KY40 years+ yrs8.0

John Hlinka, P.E. is a civil and structural engineering expert specializing in construction defect investigations. With a career spanning engineering, procurement, and construction management across diverse industries such as chemical, oil refinery, and nuclear power generation, he brings a multidisciplinary perspective to litigation work. His work centers on investigating structural failures, assessing compliance with building codes, and evaluating whether construction practices meet industry standards. Mr. Hlinka has been retained in numerous expert witness and consulting engagements across Kentucky, involving cases related to industrial facilities, structural inspections, and construction management. His BS in Civil Engineering from the University of Illinois, along with his licensure as a Professional Engineer in Kentucky, 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 structural integrity and compliance with safety regulations.

railroadaccidentcranes+25
Mechanical Engineering

Randall King, PhD, PE

Expert Witness

Dallas, TX40+ years+ yrs8.0

Randall King, PhD, PE is a mechanical engineering and products liability expert specializing in failure analysis and design defects. With a career spanning mechanical engineering, patents, and industrial accident analysis, he brings a comprehensive perspective to litigation work. His work centers on investigating machinery design, assessing manufacturing defects, and evaluating whether mechanical equipment failures have occurred. Mr. King has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to oilfield equipment, consumer products, and industrial accidents. His PhD in Mechanical Engineering, along with his Licensed Professional Engineer 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 causation in disputes involving pumps, valves, and compressors.

Products Liability
Automotive and Motorcycle

Dr Frank S. Will

Expert Witness

Bellbrae, Victoria34 years+ yrs8.0

Dr Frank S. Will, PhD, MBA, Dipl. Ing. is an automotive engineering and emissions testing expert specializing in vehicle defects and emissions compliance litigation. With a career encompassing leadership roles in emissions laboratories and innovative automotive solutions, he brings a strategic perspective to analyzing complex technical disputes. His work centers on investigating emissions defeat devices, assessing fuel consumption reduction technologies, and evaluating whether automotive systems meet regulatory standards. Dr. Will has been retained in numerous expert witness and consulting engagements across four continents, involving cases related to vehicle emissions, fuel economy, and automotive defects. His PhD in Fuel Consumption and Emission Analysis of Exhaust Heat Recovery Systems, along with his Dipl. Ing. in Mechanical Engineering, 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 emissions testing and vehicle engineering.

Emissions TestingFuel Consumption ReductionAutomotive Engineering+1
Software Engineering

Sam Malek

Professor

Irvine, California25 years+ yrs8.0

Sam Malek, PhD is a software engineering expert specializing in software architecture and security in litigation contexts. With a career spanning academia, research, and industry, he brings a multifaceted perspective to his litigation work. His work centers on investigating software vulnerabilities, assessing architectural compliance, and evaluating whether industry standards have been met. Mr. Malek has been retained in numerous expert witness and consulting engagements across the United States, involving software engineering, mobile applications, and cybersecurity cases. His Doctor of Philosophy in Computer Science, along with his extensive experience in software development and analysis, 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 software security and architecture.

InternetInformatics
Accident Reconstruction

Curtis Beloy

Principal Mechanical Engineer

Cottage Grove, WI22 years+ yrs8.0

Curtis Beloy, PE, DFE is a forensic engineering expert specializing in accident reconstruction and products liability. With a career encompassing vehicle collision analysis, mechanical equipment incidents, and defect evaluations, he brings a comprehensive forensic framework to litigation work. His work centers on investigating vehicle collisions, assessing mechanical equipment failures, and evaluating whether product defects contributed to incidents. Mr. Beloy has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to motorcycles, ATVs, powersport vehicles, and mechanical equipment incidents. His Master of Science in Mechanical Engineering, along with certifications such as Board-Certified Diplomate in Forensic Engineering and BOSCH Crash Data Retrieval System Technician and 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 vehicle collisions and mechanical failures.

Products LiabilityForensic EngineeringVehicle Collision Analysis+1
Land Surveying

Christopher Curtis

President, Geomatics Engineer

Sacramento, CA30+ years+ yrs8.0

Christopher Curtis, PLS is a geomatics engineering expert specializing in forensic surveying and mapping in civil and criminal litigation. With a career spanning surveying, LiDAR technology, and geomatics engineering, he brings a comprehensive understanding of geospatial data collection and analysis to his litigation work. His work centers on investigating boundary disputes, assessing fire origins, and evaluating mapping accuracy in complex legal cases. Mr. Curtis has been retained in numerous expert witness and consulting engagements across California, involving cases related to boundaries, easements, structure fires, wildland fire investigations, and catastrophic injuries. His BS in Geomatics Engineering, along with his FAA – Part 107 sUAS REMOTE PILOT 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 causation in disputes involving land surveying and mapping.

EngineeringLand Title – Boundary & EasementsGeospatial Data Collection & Analysis+10
Mechanical Engineering

Victor Alan Werner

PE, P.Eng, PMP

Renton, Washington57 years+ yrs7.9

Victor Alan Werner, PE, P.Eng, PMP is a mechanical engineering expert specializing in industrial process systems and equipment litigation. With a career spanning forensic analysis, industrial design, and energy modeling, he brings a robust technical framework to his litigation work. His work centers on investigating industrial process failures, assessing equipment design compliance, and evaluating whether operational deviations have occurred. Mr. Werner has been retained in numerous expert witness and consulting engagements across the United States and Canada, involving chemical process plants, pulp and paper mills, and food processing facilities. His BS in Mechanical Engineering from Oregon State University, along with his PMP 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 causation in disputes involving mechanical systems and processes.

Equipment & Machinery
Electrical Engineering

Rafael J. Betancourt

CMOS Silicon Architect | AMS System & Verification Expert

Silicon Valley, CA36 years+ yrs7.9

Rafael J. Betancourt, Engineers Degree in Electrical Engineering, MSEE, BSEE is a CMOS Silicon Architect expert specializing in AMS design and verification litigation. With a career encompassing electrical engineering, electronics, and semiconductor design, he brings a comprehensive understanding of complex integrated circuit development to his litigation work. His work centers on investigating silicon architecture, assessing AMS verification processes, and evaluating whether industry standards in CMOS IC design have been met. Mr. Betancourt has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to semiconductor design, AMS systems, and intellectual property disputes. His Engineers Degree in Electrical Engineering from Stanford University, along with his MSEE and BSEE, 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 analog mixed-signal design and verification.

ElectronicsAMS DesignCMOS IC Design+1
Integrated project management

Michael D. Felt

PE Energy Specialists

Houston, TX7.9

Michael D. Felt, PE is an energy industry engineering expert specializing in complex technical litigation involving project management, engineering design, and operations. With a career spanning integrated project management, international project development, and engineering design, he brings a strategic and operational framework to his litigation work. His work centers on investigating engineering failures, assessing project management practices, and evaluating whether industry standards were met in energy sector disputes. Mr. Felt has been retained in numerous expert witness and consulting engagements across the United States and internationally, involving petroleum transportation systems, marine loading facilities, and SCADA systems. His Bachelor of Science in Electrical Engineering with Honors, along with his Professional Engineer license 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 causation in disputes involving energy infrastructure and operations.

International project developmentEngineering designConstruction+1
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