Our Expertise

We offer state of the art vehicular accident reconstruction, testing, safety research and expert testimony.

Consulting activities involve collision analysis, vehicle dynamics and handling, rollover analysis, computer simulation/modeling, testing design, heavy truck dynamics, crashworthiness, laser scanning and EDR analysis.

Vehicles analyzed include passenger cars, SUVs, heavy trucks, motorcycles, ATVs, forklifts, industrial trucks and bicycles.  Collectively we have participated in over 5,000 collision analyses and component performance tests.  We have generated ground-breaking research studies, analysis reports, technical papers, continuing education lectures and training materials.


John F. Kerkhoff - Founder, Retired 2010

Mr. Kerkhoff began his career at the UCLA crash research project. He founded KEVA Engineering (formerly JFK Engineering) in 1982 to analyze vehicle collisions and to further the advancement of vehicular safety. In his more than 30 years of expertise, he has participated in over 50 full-scale collision experiments and over 3,000 accident reconstructions. He has qualified on hundreds of occasions as an expert in state and federal courts.


Michael S. Varat - Founder, Principal Scientist

Specializes in accident reconstruction, vehicle dynamics and computer simulation.  His research and publications include vehicular dynamics, motorcycle dynamics, vehicle testing and reconstruction methodologies. He has qualified as an expert in state and federal courts on more than 100 occasions.

Stein E. Husher - Principal Scientist

Specializes in accident reconstruction and vehicle performance analysis. His research and publications include vehicle and component testing, reconstruction methodologies, motorcycle and bicycle dynamics and computer simulation. He is court qualified as an accident reconstruction expert.

John C. Steiner - Principal Scientist

Specializes in accident reconstruction, truck brake performance, and EDR data imaging. Research and publications include extracting and analyzing onboard electronic crash data as well as documenting and analyzing transportation crashes. He testifies as an expert on electronic data and reconstruction.


Christopher D. Armstrong - Research Engineer

Specializes in accident reconstruction. His research and publications include vehicle testing, reconstruction methodologies, photogrammetry and computer simulation.  He is available to testify as an expert in accident reconstruction.

John M. Grindey – Accident Reconstruction Specialist

Specializes in transportation accident analysis and reconstruction, including the extraction and analysis of data from passenger vehicle and commercial vehicle Event Data Recorders. Conducts rapid response to major transportation accidents. Expert in scene documentation and analysis, vehicle damage,  motorcycles and EDRs.