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Specialties & Experience of this Expert Witness

General Specialties:

Biomechanics and Human Factors

Specialty Focus:

human factors, accident reconstruction, motorcycle accident, motorcycle crash, auto accident, slip trip & fall, brain injury, head injury, TBI, helmet, helmet testing, motorcycle helmet, football helmet, ergonomics


PhD, Loughborough University, England; B.Sc.(Hons), Loughborough University, England

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

John Lloyd, PhD, CPE has served as an expert witness for 25 years, providing testimony in biomechanics, human factors and accident reconstruction involving motorcycle, auto and trucking accidents as well as slips, trips & falls. Dr. Lloyd has been qualified to provide biomechanical analyses of various incidents, including: • Motorcycle Accidents • Automobile Accidents • Human Factors • Brain Injury • Motorcycle Helmet • Football Helmet • Slips Trips & Falls Dr. Lloyd earned a Ph.D. in Ergonomics (Human Factors Engineering) with a specialization in biomechanics from Loughborough University in England. He has practiced in the field of biomechanics for over 25 years, and has been board certified (CPE # 725) through the Board of Certification in Professional Ergonomics since 1995. He also holds numerous certifications in automobile and motorcycle accident reconstruction. Applicable professional memberships have included The Ergonomics Society, Human Factors and Ergonomics Society, American Society of Biomechanics, American Academy of Forensic Sciences, American Academy of Neurology, National Neurotrauma Society, Academy of Certified Brain Injury Specialists, National Association of Traffic Accident Reconstructionists and Investigators, and Society of Accident Reconstructionists (SOAR). John served as a senior federal researcher for the US Department of Veterans Affairs for 20 years. Additionally, he holds a courtesy appointment as Assistant Professor in the University of South Florida College of Engineering. Dr. Lloyd’s professional work has been published in six book chapters and 32 scientific articles in peer-reviewed journals, as well as presented at more than 100 national and international conferences. His expertise in human factors, biomechanics and accident reconstruction has been recognized and admitted by civil and criminal courts throughout the United States and Great Britain, in which he has provided testimony on approximately 100 occasions.