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RaceTrack Design & Operations Expert Witnesses

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Thomas Lepper
810 Rose Drive
Benicia CA 94510
USA
phone: 408-691-2779
fax: 707-751-3833
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.
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Dr. Russell Darnell
President
PO Box 5586
El Dorado Hills CA 95762
USA
phone: 916-825-5592
fax: 530-676-1513
Dr. Russell Darnell is an expert in Accident Reconstruction: Motorcycles, ATV's, Cars, Trucks, Buses, Heavy Equipment, Trailers, Boats, Ships, Yachts, Racetrack Design and Maintenance.

Areas of Expertise:
  • Motorcycle Accidents
  • ATV Accidents
  • Automobile Accidents
  • Truck Accidents
  • Towing Accidents
  • RV Accidents
  • Tire-Related Accidents
  • Marine Accidents
  • Repair Fraud
  • Machinery
  • Fires- Source and Cause
  • Services Provided:
  • Review and Advise on Case Merits
  • Defense and Plaintiff Case Accepted
  • Accident Reconstruction
  • Trial Preparation
  • Video and Photo Analysis
  • Exhibit Preparation
  • Trial Testimony
  • Deposition Testimony
  • Mediation Testimony
  • Research and Development Training
  • Engineering Management
  • Russell E. Darnell, PhD
    The purpose of this research was to determine whether or not there is a measurable relationship between the use of expert witnesses in civil litigation and the profitability of American law firms. The subjects in the present study were 1,065 American law firms which responded to a confidential survey. . .
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    Murat Okcuoglu
    4175 Lago Dr.
    Santa Barbara CA 93110
    USA
    phone: 805-637-5482
    Murat-Okcuoglu-Automobile-Accident-Expert-Photo.jpg
    Murat Okcuoglu is an Automotive Engineer and Designer with over 30 years of experience. He has worked with most United States and European automotive manufacturers.

    Mr. Okcuoglu has invented and developed QuadraDrive, VersaTrak, and various other traction control and all wheel drive systems which went into production on many make and model vehicles including Jeep Grand Cherokee, Ford Mustang Cobra R, Dodge Viper R/T, Buick Rendezvous, Pontiac Aztec, Saturn Vue, Chevrolet Venture, and Oldsmobile Silhouette.

    Driving race cars for 40 years, Mr. Okcuoglu has tested and developed vehicles with all major U.S. and most European manufacturers and manufacturers' on proving grounds around the world. He has unparalleled experience on both the hands on and academic aspects of automotive engineering and vehicle systems.

    Mr. Okcuoglu has produced several publications and papers and has been awarded 9 U.S. and over 7 foreign Patents. He currently works as an independent consultant, doing research mostly on Vehicle Dynamics and Electronics.

    Litigation Support - Murat Okcuoglu provides expert witness services to attorneys representing both plaintiff and defendant. His experience includes approximately 70 depositions and testimonies in Federal and State courts. Mr. Okcuoglu's services include site review, thorough reporting, depositions, and trial testimony as needed.

    Areas of Expertise:
    • Automotive Research
    • Automotive Design
    • Automotive Testing
    • Automotive Forensic Analysis
    • Automotive Drivetrains
    • Automotive AWD 4x4 design
    • Automotive Transmission Design
  • Automotive Engine Design
  • Automotive Emission Controls
  • Automotive A/C Design
  • Handling Stability / Skidding
  • Rollover Propensity
  • Electronic Systems & Components (ESC)
  • Autonomus Vehicle Systems