Hayes & Associates


Injury Biomechanics. Clearly Explained.

Hayes + Associates is injury biomechanics and all that supports it—rigorous, evidence-based science presented clearly, so the jury understands; scene analysis and accident reconstruction using state-of-the art, computerized simulation tools; real-time courtroom animations, grounded in unimpeachable engineering analysis; and a team that is dedicated above all to the needs of your case.

Learn more about why we’re different.

Contact us today to request a no-cost initial consultation.

Unassailable Expertise.

Wilson C. “Toby” Hayes, Ph.D.
Expert Witness

News + Publications

Hayes + Associates' biomechanical analysis plays role in monumental GM ignition switch settlement

"The ratio of thoracic to lumbar compression force is posture dependent" published in Ergonomics, 2013, Vol. 56, 832–841 (Icon-pdf 170.5 KB PDF)