We are a forensic expert consulting firm specializing in accident reconstruction, construction safety, and the biomechanics of human motion and injuries, including walkway safety. Mark Blanchette, PhD Biomechanics Assistant: Christina Huizar John Brault, MS Biomechanics Assistant: Deby Herrera Brad Rutledge, MS PE Accident Reconstruction & Biomechanics Assistant: Liz Harrington Cenie Walker, MS CHST Construction & Premises Safety Assistant: Deby Herrera Why Choose Semper Scientific? Over 30 years of experience advising our clients in the legal community. More than 9,000 technical investigations performed. Expert testimony in more than 400 trials. Get In Touch