Automotive - Vehicular Accident Reconstruction Expert Witnesses: 20

Thomas J. Lepper has over sixteen years of experience as a consultant, inspector and tester within the automotive industry. He has more than ten years of experience as a forensic automotive consultant for nationally known insurance companies and law firms. Mr. Lepper is qualified to testify as an Expert Witness in the Superior Court for the State of California.

Areas of Expertise:

• Tire and Brake Separations and Failures
• Theft and Forced Entry Issues
• Fire Cause and origin
• Transmissions
• SDM Interrogation with CDR Tool
• Steering and Suspension Systems
• Seat Belt and Airbag Issues
• Mechanical Defects
• Throttle / Unwanted Acceleration Issues
• Wiring and Electrical Issues
• Racetrack / Racecar Incidents

Mr. Lepper's forensic, automotive fire, brake and tire expertise has been performed for major nationwide insurance companies, nationally known rental car companies and law firms. Please contact for fee schedules.

Scott L. Turner is a highly qualified Commercial Motor Vehicle (CMV) Transportation Expert, FMCSR Regulatory and PHMSA-HMR Expert with approximately 30-years experience in the highly specialized field of CMV crashes and incidents, and 16 years as the CEO of a nationwide CMV crash & HazMat disaster response corporation. 

Mr. Turner's career includes personal response and/or investigation of over 1,000 CMV crashes, 200 cargo-tank truck crashes/incidents and a multitude of industrial setting incidents including fixed facilities, loading docks and loading rack disasters. His FMCSR and PHMSA knowledge (Federal Enforcement Training), detailed reporting and testimony can be a focal point of any civil litigation, where commercial motor vehicle crashes and/or transit incidents are at issue, with or without hazmat involvement. Mr. Turner is qualified in both the Federal Court system as well as multiple States throughout the United States and testifies on an approximate 50/50 average of Defense to Plaintiff ratio.

Areas of Expertise:

• Level 1 FMCSA Inspections
• Commercial Motor Vehicle (CMV) Post-Crash Inspection
• CMV Post-Crash Investigation
• Driver Qualifications
• HOS / Fatigue Driving
• Motor Carrier Fitness Standards
• Safety Programs
• Trucking Industry Standards
• Cargo-Tank Truck Incidents / Crashes
• CMV loading/Off-loading Cases (van, cargo-tank, flatbed)
• Flatbed, Cargo Securement Failure
• Loading Dock Incidents w/ CMV
• Forklift Incidents w/ CMV
• CMV Crash Involving Hazmats
• Loading Rack Explosions / Disasters
• Pedestrian v. CMV Incidents

Services Include:

• Litigation Support
• Trial Preparation Consulting
• Courtroom Testimony
• Commerical Vehicle Accident Investigations
• CMV, Highway Construction Zone Crashes
• CMV Loading and Offloading Investigation
• Level 1 FMCSA Audits
• Load Securement Incidents

Dan W. Wall, BSME, specializes in the fields of Accident Reconstruction, Biomechanics and Motor Vehicle Injury Causation, Human Factors, and Injury Prevention in Motor Vehicle Design. Mr. Wall is fully accredited with ACTAR (Accreditation Commission for Traffic Accident Reconstruction), ACTAR No. 1140.

Dan Wall has conducted scientific and engineering analysis of motor vehicle collisions since 1987 for both plaintiff and the defense in civil and criminal cases. A qualified expert witness since 1987, he has offered litigation support services to insurance companies and attorneys in Arizona, California, Colorado, Tennessee and Louisiana and has testified in both Civil and Federal Courts.

Mr. Wall's past cases have involved commercial vehicle design and analysis, insurance investigations, low speed collisions and injury analysis, motorcycle collisions and rider analysis, vehicle handling and dynamics, seat belt analysis and injury mitigation, tire failures and rollover analysis, general accident reconstruction, and roadway analysis. He has conducted human factor analysis including reaction and perception, environmental effects, and general driver behavior. With a large library and the tools needed to do all types of motor vehicle reconstruction investigations, Mr. Wall is an asset to any team.

Dan Wall currently owns and rides a Harley Davidson Ultra Electra Glide Classic motorcycle and has gone through various levels of motorcycle training. He also has extensive experience as a boat operator and Marine Instructor.

For more information, visit www.wallaccidentreconstruction.com

Also view Dan Wall's article in Attorney At Law Magazine at http://attorneyatlawmagazine.com/phoenix/2014/01/17/accident-reconstruction-expert-dan-wall/

Areas of Expertise:

Mechanical Engineering Biomechanics Human Factors Accident Reconstruction Failure Analysis Forensic Investigation Motor Vehicle Design Dynamics and Handling Motorcycles Commercial Vehicles Rollovers Signage

Conspicuity Low Speed Collisions Marine Safety Bicycles Slip and Fall Accidents Pedestrians Accidents Tire Failure Seat Belt Issues Road Defects Off Road Driving Accidents Construction Zones Product Liability

View Dan Wall's Consulting Profile.

Howard F. Berkowitz has extensive experience in the Passenger Transportation Industry. Since 1982, his career for over three decades qualifies him as expert in the industry of passenger transportation and provides critical knowledge and expertise in:

Non-Emergency Medical Transportation (NEMT), Luxury Sedan & Limousine, Paratransit Operations, Expert Witness, Mass Transit, Compliance, Policy & Procedures, Safety Practices, Wheelchair & Stretcher Securement, and Transportation Network Companies

Christopher J. Kennedy holds a BS in Industrial Engineering and is an ACTAR-accredited Accident Reconstructionist with EIT and AEP credentials. He integrates engineering analysis, EDR data interpretation, UAV-based mapping, and human factors evaluation to reconstruct collisions, assess visibility, and quantify perception response. His work relies on validated measurement, objective modeling, and data-driven engineering principles to deliver clear, defensible forensic conclusions.