Your analyst
Field-tested experience behind every desktop review
Zachary Sprague
Collision Reconstructionist
Founder, Accident Dynamics USA LLC
Your case is evaluated by a collision reconstructionist with an extensive career in law enforcement — responding to and investigating thousands of traffic collisions, from minor impacts to fatal crashes. That includes hands-on scene work, vehicle examinations, and full-scale investigations.
That real-world foundation provides practical insight that classroom-only training cannot replicate. Today it informs a disciplined, desktop-based approach — ensuring every analysis is grounded in how collisions actually occur, not just how they are taught in theory.
Sprague brings that investigative background to Accident Dynamics USA, providing top-tier, evidence-driven collision analysis for attorneys and insurance professionals. His work reflects a disciplined approach, clear communication, and a commitment to objective, defensible findings on every case.
Client testimonial
“I cannot recommend a better person, and the cost value for his service is unmatched anywhere… I am certain you will find, as I did, that he is the finest and most courteous accident reconstructionist anywhere.”
Read the full letter
My name is Daniel Gonzalez, 76, and I am a pro se plaintiff in a contentious personal injury case. I am honored and privileged to express my unending appreciation for the expertise and professionalism Investigator Zachary Sprague demonstrated in preparing my report to win my case. I cannot recommend a better person, and the cost value for his service is unmatched anywhere.
This testimonial is written without any payment or promise of payment to me from Zachary in any manner. This letter is intended especially for anyone serious about presenting a top-level forensic accident reconstruction report successfully, in a jury- or court-friendly format, delivered in a clear, easy-to-understand manner.
Zachary is a thoroughly extraordinary, kind, and genuine person, especially at a time when I was completely helpless and in serious danger of losing my case, and more importantly, my credibility. While Zachary generally works with attorneys and other professionals, he possesses that unique human quality of helping those who cannot afford the more expensive legal expert services. He is a gift and blessing to the less fortunate who still believe that our justice system can operate with the highest integrity.
If anyone has any doubt about whether Zachary can do the same for you, please do yourself and your case a huge favor and contact him. I am certain you will find, as I did, that he is the finest and most courteous accident reconstructionist anywhere.
Eternally and profoundly grateful,
Daniel Gonzalez — A pro se client