4N6XPRT Systems

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. 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. 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. Primary programs at this time are - Expert AutoStats - a 43,000+ model year vehicle database containing vehicles from the 1940's to present 4N6XPRT StifCalcs - Puts the NHTSA Crash Test database on your computer WITH the additional capability of calculating Stiffness values and WITHOUT the NEED to connect to the internet Expert VIN DeCoder - Decodes the 17 character VIN for Cars, SUV's, Light trucks and vans 4N6XPRT BioMeknx - Provides information about the human body which is important to the Vehicle Accident Investigator yet in most cases is difficult to easily find. 4N6XPRT Systems has also published and sells Expert Qwic Calcs®, Expert TireStuf®, and 4N6XPRT Ped & Bike Calcs®.