Forensic Accident Reconstruction Software

Our goal is to provide software that is Easy To Use and provides at least as much, if not more than, what is suggested or promised in our marketing materials and pricing.”

4N6XPRT Systems® is a dba of Expert Witness Services, Inc., a California corporation. Expert Witness Services, Inc. has been in business since 1974, and 4N6XPRT Systems® since 1990.

4N6XPRT Systems® has developed, published, and currently offers for sale the following programs: Expert AutoStats®, 4N6XPRT StifCalcs®, 4N6XPRT BioMeknx®, Expert Qwic Calcs®, Expert VIN DeCoder®, Expert TireStuf®, and 4N6XPRT Ped & Bike Calcs®.

The original programs were developed by Daniel W. Vomhof, Ph.D., and Daniel W. Vomhof III. The program developers are Court Qualified Accident Reconstructionists with over 65 years of combined reconstruction, A.C.T.A.R. Certified Accident Reconstructionists, and Board Certified Forensic Examiners.

The principal product for which 4N6XPRT Systems is known is the Expert AutoStats® program. Since its introduction in 1991, Expert AutoStats® has grown from a database of 12,000 vehicles to over 43,000 vehicles in the 2013 edition. Unlike printed sources, each update corrects reported omissions in the existing data as well as adding the new models. It is currently the only database program available for purchase having this depth of models, breadth of years, and detail of information. Expert AutoStats® is owned by over 300 Government agencies and 700 private consultants within the United States, Canada, and South America, as well as several major automotive manufacturers and insurance claims departments.

Customer service/support for registered owners of the current program version includes providing corrected data at no charge when an error in dimensions or an omitted vehicle is called to our attention. This correction is usually e-mailed to the reporting party within 24 hours.