Zachariah Weimer, M.S., P.E.

Senior Engineer
Accident Reconstruction

Direct Dial: (720) 734-1052


Mr. Weimer has been applying his engineering education to forensic science and the specialty of automobile accident reconstruction for more than 12 years. Zach has reconstructed more than 700 motor vehicle crashes across the United States and testified as an expert witness regarding his accident reconstruction analysis and opinions in multiple states. Zach has expertise in reconstructing various types of motor vehicle accidents including:

• Low Speed      • Motorcycle, ATV, UTV
• High Speed     • Bicycle
• Rollover           • Pedestrian

Zach is a certified Bosch Crash Data Retrieval (CDR) Technician, Analyst and System Operator and downloads event data recorder (EDR) information as part of his accident investigations. Zach has published on event data recorder evidence and other topics related to accident reconstruction methods and analysis. He is a Registered Professional Engineer (PE) and a Board Certified Diplomate in Forensic Engineering with the National Academy of Forensic Engineers (NAFE). Zach has presented regarding low-speed rear-end collision reconstruction analysis methods at the NAFE summer conference and is an invited peer-reviewer for the NAFE Journal.

Mr. Weimer’s education and experience in mechanical engineering and biomechanics provide a unique perspective to and understanding of the accident reconstruction issues and injury questions that are typically associated with VSI’s casework. It qualifies him to identify, assess and communicate the “big picture” idea to clients and other experts.

• Masters of Science Engineering, Emphasis in Biomechanical – Colorado School of Mines
• Bachelors of Science Engineering, Mechanical – Colorado School of Mines
• Registered Professional Engineer (PE) in Colorado, Kansas and Wyoming
• National Council of Examiners for Engineering and Surveying (NCEES) Record Holder
• Board Certified Diplomat in Forensic Engineering – National Academy of Forensic Engineers (NAFE)
• Accredited Traffic Accident Reconstructionist – Accreditation Commission for Traffic Accident Reconstruction (ACTAR)