Accident Technology is a well-established company which provides a variety of expert witness and
consulting services including, but not limited to Trimble and Nikon 2D and 3D Laser Measuring,
Crash Data Recorder Retrieval, Animation Preparation for trial and/or other purposes, scaled Auto
Computer Animated Digital Drawings (accident scene, vehicles, etc), Vehicle Inspections, Crash
Scene Inspections, Photographic Analysis, and much more.
As professionally qualified Accident Reconstructionists, Accident Technology looks forward to providing you
with 1-on-1 personal consulting. We are rugged professionals who hold Integrity above all else, and
report "the facts". Our premise is you will be provided with the facts you need to determine fault or
prepare for court within 30 days.
Some of our most recent cases involving reconstruction analysis include, but are not limited to,
- Vehicular Dynamics
- Commercial Vehicle Collisions
- Motorcycle Collisions
- Pedestrian Accidents
- Vehicular Failure Analysis
- Friction Testing, Slips, and Falls
- Warehouse/Forklift Accidents
- Mining Equipment
- Farming Equipment
- FMCSS (Federal Motor Carrier Safety Standards) Support
- Foundation Support
- Admissibility Support
- Deposition Support
- Large Format, High-Resolution Demonstrative Evidence
- Professional Video/Photo
- Forensic DNA and Trace Evidence Analysis
- AASHTO Standards
- Detail Reports/Court Testimony
- General Assembly, Statute Development
Please contact our office for any additional information, references, to discuss a potential case assignment, or for more information to keep on file for future use. We look forward to
working with you!
Joe W. Atherton
Police Force Accident Reconstructionist K-9 Alert Search and Rescue 7 years Accident Technology Inc. Expert
Joe Atherton received his undergraduate degree from Towson State University in 1978. Afterwards, he moved to Virginia and was with the Chesterfield County Police Department until forming Accident Technology. For the past 30 years, he has pursued post-graduate work in the field of accident causation and reconstruction. These studies have included, but are not limited to course pursuits at Virginia Commonwealth University, The University of North Florida, The University of Richmond, The Society of Engineering in Detroit, and Mack Boring's Engine City Tech Institute. Joe has held an international certification and accreditation for traffic accident reconstructionists since 1996. He currently is the President of Accident Technology. In this role, he is responsible for the forensic analysis of all types of crashes, ranging from low impact studies to multiple fatalities. His work is primarily in the civil arena and he has testified as an expert in accident analysis in the courts of Virginia and numerous other states. In addition to analyzing crashes, he has taught at his own Department of Criminal Justice Training Academy, and for many home office and regional office insurance training centers. He served on the board of Directors For Drive Smart Virginia and has provided data for the Virginia General Assembly to consider when increased speed limits were proposed. Finally, he assisted the Virginia Transportation Research Council in drafting the new stopping distance chart used in Virginia Code section 46.2-880.
President - Matthew Dwyer
Scout Sniper Platoon Commander - Iraq Marine Corps Special Operations in Afghanistan President Accident Technology Inc. and Expert
Matthew Dwyer received his undergraduate degree from the United States Naval Academy in 2006 with a Bachelors of Science. After 18 months of follow-on Marine Corps Officer training, he was stationed in North Carolina. He did one combat tour to Iraq as a Scout Sniper Platoon Commander and then was selected by the Marine Corps Special Operations Command. He was re-stationed in California and did one combat tour to Afghanistan. Afterwards, he moved to Virginia was hired by Accident Technology. He furthered the in-depth collection methods learned in the Marines by studying Accident Reconstruction at The University of North Florida. Matt was officially ACTAR Certified as #2599 in September of 2012. He currently is the Vice President of Accident Technology. In this role, he is responsible for the forensic analysis of all types of crashes, ranging from low impact studies to multiple fatalities. His work is primarily in the civil arena and he has taken part in everything from crash tests to legal consulting.
Greater Richmond Transit Authority- Test crashes & low studies of transit buses
Insurance Institute For Highway Safety-1997, 1998, 1999, 2000, 2001 Test crashes various vehicles at 30, 40, 45 mph oblique, low speed impacts and T bone collisions International Association of Accident Reconstructionists- 1998 Test crashes, 15 assorted automobiles in low speed scenarios University of North Florida- Institute of Police Technology and Management- Test crash moderate speed pedestrian collision
University of North Florida- Institute of Police Technology and Management- Test crashes of vehicles with a concentration on lamp analysis.
University of North Florida- Institute of Police Technology and Management- Moderate to High-Speed Crash Scenarios
(including but not limited to)U.S. Federal Court, Virginia- Tennessee
Commonwealth of Virginia, General Assembly- Expert Testimony Concerning Virginia State Code and Stopping Distances
Commonwealth of Virginia, General Assembly- Expert Testimony Senate Sub-Committee on Transportation
Harrison County, Mississippi Circuit Court
Rockingham County, North Carolina Superior Court
Pittsburgh City, Pennsylvania Circuit Court
Court of Common Pleas of Schuylkill County, Pennsylvania
Allegheny County, Pennsylvania Circuit Court
Dickson County, Tennessee Circuit Court
Wilson County, Tennessee Circuit Court
Danville County, Virginia Circuit Court
Richmond City, Virginia Circuit Court
Chesterfield County, Virginia Circuit Court
Alexandria City, Virginia Circuit Court
Woodstock City, Virginia General District Court
Portsmouth City, Virginia General District Court
Newport News City, Virginia General District Court
Buchanan County, Virginia Circuit Court
Fairfax County, Virginia Circuit Court
Gate City, Virginia Circuit Court
Goochland County, Virginia Circuit Court
Louisa County, Virginia Circuit Court
Norfolk City, Virginia Circuit Court
Spottsylvania County, Virginia Circuit Court
Stafford County, Virginia Circuit Court
Staunton County, Virginia Circuit Court
Virginia Beach City, Virginia Circuit Court
Gloucester County, Virginia Circuit Court
Greene County, Virginia Circuit Court
Newport News, Virginia Circuit Court
Amelia County, Virginia Circuit Court
Richmond City, Virginia Juvenile Court
- Admissibility in most states is governed by Evidence Code and case law.
- If a witness is testifying as an expert, his testimony in the form of an opinion is limited to such opinion as: a subject that is sufficiently beyond common experience that such opinion would assist the trier of fact; and is based on matter (including his special knowledge, skill, experience, training and education).
- For expert opinion testimony, to be admissible:
- The subject matter must be "sufficiently beyond common experience" that the opinion would assist the jury;
- The witness must have appropriate qualifications, i.e., some special knowledge, training, or experience in that subject matter; and
- The opinion must be based on reliable matter.
- Federal ("Daubert"): whether expert opinion testimony is valid and hence, reliable, may be measured by the following factors:
- Whether the theory or technique can be and has been tested? That is, can the theory or technique be tested empirically?
- Whether the theory or technique has been subjected to peer review and publication?
- Whether in respect to a particular technique, there is a high "known or potential rate of error" and whether there are "standards controlling the technique's operation"? That is, is the error rate acceptable?
- Whether the theory or technique has achieved general acceptance within the relevant scientific community.
- Whether the expert is proposing to testify about a matter growing naturally and directly out of research he/she has conducted independent of the litigation, or whether he developed his opinions expressly for purposes of testifying.
Accreditation Commission for Traffic Accident Reconstruction - (ACTAR) Visit www.actar.org
International Association of Accident Reconstruction Specialists - (IAARS) Visit www.iaars.org
Professional Safety Incorporated - (PSI) Visit www.profsafety.com
Technical Advisory Service for Attorneys - (TASA) Visit www.tasanet.com
Society of Accident Reconstructionist - (S.O.A.R.) Visit www.accidentreconstruction.com/soar
Virginia Safety Belt Coalition, Advisory Council
Society of Automotive Engineering International - (SAE) Visit www.sae.org
Illinois Association of Technical Accident Investigators - (IATA) Visit http://iatai.org/
National Association of Professional Accident Reconstruction Specialists - (N.A.P.A.R.S.) Visit http://napars.org/
National Fire Protection Association - (NFPA) Visit www.nfpa.org
Maryland Association of Traffic Accident Investigators - (MdATAI) Visit www.mdatai.org
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