Shawn P Gyorke

Mr. Shawn P Gyorke

Crash Data Services, LLC
PO Box 7292
Algonquin , IL 60102
Office: 847-217-6644



Shawn Gyorke is a Certified Accident Reconstructionist with education, training and experience in the investigation, reconstruction, and analysis of personal injury and fatal traffic crashes. Shawn has investigated hundreds of collisions involving pedestrians, commercial vehicles, motorcycles, bicycles, cars, trucks and SUVs. Shawn currently concentrates on civil crash reconstruction projects, as well as vehicular insurance fraud identification. Effective accident reconstruction techniques help Shawn determine if the actions of drivers, failures of equipment, or environmental factors played a role in a collision. Shawn's mix of practical experience and rigorous training make him an outstanding expert witness in the field of accident reconstruction.


Shawn is a graduate of Northwestern University's Center for Public Safety and is certified as an Accident Reconstructionist by the state of Illinois as well as the Accreditation for Traffic Accident Reconstruction (ACTAR). Shawn is a member of numerous professional associations, maintains continuing education, and is a licensed investigator.


Shawn has over 13 years of practical accident reconstruction experience as a law enforcement professional. He has testified in both criminal and civil proceedings and, while Shawn's practice extends throughout the United States, he has extensive experience with Illinois Traffic Law. Shawn prides himself on developing informative conclusions based on peer reviewed methodologies and his experience as an investigator.


In 2007, and again in 2009, Shawn obtained his certification as both a Crash Data Retrieval Technician and Analyst with the Bosch Diagnostics approved course taught by the Collision Safety Institute. Shawn is also a licensed trainer & mentor of crash data retrieval technicians since 2010. Shawn has been a guest speaker on crash data retrieval (vehicle black box technology) for attorneys, accident reconstruction seminars and insurance fraud investigators.


Many of Shawn's retentions as an expert come in the field of Crash Data Retrieval (vehicle black box technology). As of 2013, almost all passenger class vehicles had some type of event data recorder installed in them. Event data recorders (EDRs) are generally part of a vehicle's airbag/supplemental restraint system, and can be configured to record pre-crash data such as speed, brake use, steering input and seatbelt use.

Shawn also provides general accident reconstruction services, to include at-scene investigations, vehicle inspections, mathematical analysis, collision animation and expert witness rebuttals.


“Deciphering the NHTSA Event Data Recorder Ruling” - National Society of Professional Insurance Investigators (NSPII) – National Newsletter, Fall 2008.

“Ten Common Questions About Event Data Recorders” - National Society of Professional Insurance Investigators (NSPII) – National Newsletter, Fall 2008.

“The Frye Standard: Determining the Admissibility of Event Data Recorders for Traffic Accident Reconstruction in Illinois” - National Society of Professional Insurance Investigators (NSPII) – National Newsletter, Spring 2009.

“Event Data Recorders: Proper Evidence Collection in Criminal, Insurance and Tort Liability Investigations” - National Society of Professional Insurance Investigators (NSPII) – National Newsletter, Spring 2012.

Areas of Expertise

  • Accident Investigation
  • Accident Reconstruction
  • Automotive
  • Bicycle
  • Black Box/Data Recorder
  • Bus & Truck Safety/Accident
  • Driver Behavior
  • Human Factors Engineering
  • Insurance Fraud
  • Motorcycles

Expert Background

Q: Please list your professional accreditations, degrees, licenses, and certificates granted:
A: Graduate of Northwestern University’s Center for Public Safety Accident Investigation and Reconstruction Program (2002)
Certified State of Illinois Crash Reconstruction Specialist (2002)
Certified Reconstructionist by the Accreditation Commission for Traffic Accident Reconstruction - ACTAR #1514 (2005)
Certified Bosch/Vetronix Crash Data Retrieval Technician & Analyst (2007, 2009)
State of Illinois Licensed Investigator – License No. 115.002163 (2010)
Q: Please list your affiliations or memberships in any professional and/or industry organizations:
A: Illinois Association of Technical Accident Investigators (IATAI)
Midwest Association of Technical Accident Investigators (MATAI)
National Association of Professional Accident Reconstruction Specialists (NAPARS)
Traffic Accident Reconstruction Origin (TARO)
International Association of Special Investigation Units – Illinois Chapter (IASIU)
National Society of Professional Insurance Investigators – Illinois Chapter (NSPII)
Accident Reconstruction Network (ARC)
Society of Accident Reconstructionists (SOAR)
International Association of Auto Theft Investigators (IAATI)
Q: Please list any teaching or speaking experience you have had, including subject matter:
A: We offer a variety of training opportunities, including:

Legal Aspects of Crash Data Retrieval - From Admissabilty to Practical Use (Attorney)
Crash Data Retrieval for the Insurance Investigator (Adjusters & SIU)
Q: Have any of your accreditations ever been investigated, suspended or removed? (if yes, explain)
A: No
Q: On how many occasions have you been retained as an expert?
A: 100+
Q: For what area(s) of expertise have you been retained as an expert?
A: Accident Reconstruction and Crash Data Retrieval (Vehicle Black Box Technology)
Q: In what percentage of your cases were you retained by the plaintiff?
A: Approximately 33%.
Q: In what percentage of your cases were you retained by the defendant?
A: Approximately 67%
Q: On how many occasions have you had your deposition taken?
A: 25+
Q: What services do you offer? (E.g.: consulting, testing, reports, site inspections etc.)
A: Our accident investigation and reconstruction services may include, but are not limited to, At-scene Photography and Measurement; Roadway Evidence Examination; Seat Belt, Airbag, Headlamp, and Tire Examination; Crash Data Retrieval (Black Box Technology); Speed Derivation by Momentum or Crush Analysis; Occupant Kinematics; Driver Response Time Analysis; Time, Speed, and Distance Scenarios; Computer Generated Scale Diagrams with Aerial Overlays; Police and Expert Report Review; and Preparation of Court Trial Materials. Regardless of the case, our professional services are tailored to meet the needs of our clients.
Q: What is your hourly rate to consult with an attorney?
A: Initial phone consultations are always free.
Q: What is your hourly rate to review documents?
A: $175.00
Q: What is your hourly rate to provide deposition testimony?
A: $175.00
Q: What is your hourly rate to provide testimony at trial?
A: $175.00
Q: Please list any fees other than those stated above (E.g.: travel expenses, copy fees, etc.)
A: Travel time is billed at the normal hourly rate plus the actual cost of any expenses (hotel, retal car, meals, etc...).


References upon request.