Warnings Expert Witnesses

Human Factors, Automotive - Motor Vehicle Accidents, Distracted Driving, Products Liability, Pedestrian/Cyclist Accidents, General Aviation Accidents, Workplace Safety, Scooters, Reaction Time, Risk Perception, Warnings, Driver Behavior, Slip/Trip/Fall

Dr. Steve Casner is a former career NASA human factors psychologist. Steve draws on a wide body of scientific research to help characterize the understandings, perceptions, and abilities of a reasonably prudent person. Steve is able to help identify the contributions of persons, places, circumstances, and things in a variety of accident situations. Steve is an experienced driver, motorcyclist, bicyclist, and airplane and helicopter pilot and flight instructor. Steve’s first book entitled Careful was published by Penguin Random House in 2017 and reviewed in the Wall Street Journal, The New Yorker, and many others. An experienced writer and speaker, Steve is able to relate scientific ideas to everyday audiences.

Biomechanics, Medical Devices - Occupant Motion, Injury Biomechanics, Orthopedics, Medical Product Liability, Duties of Manufacturer, Design, Testing, Manufacturing, Warnings, Instructions for Use, Injury Event Reconstruction, Failure Analysis, Injury Pattern, Soft Tissue Injury, Low Speed Collisions, Falls, Impacts, Sports

Licensed Professional Engineer Medical Device Design & Development  38+ years orthopaedic device development  12 patents Testified in State and Federal Courts , Injury Biomechanics and Medical Device Litigation  20+ trials  100+ depositions 38 years of experience in the biomechanics and orthopedics fields, 16 years forensic case analyses. I routinely deal with forces that are applied to the human body during many activities, including impact and injury scenarios. To assure the safety and efficacy of new medical devices, we define clinically relevant performance requirements for their installation and use, and then test to define the product specific performance characteristics. The physical principles and methods used in orthopedic biomechanics are the same as those used to reconstruct injury events. I am familiar with forces and loads applied to the hips, knees, wrist, shoulder, head, neck, lower back and skeleton in many typical activities, including sitting, walking, jumpin...

Accident Reconstruction, Products Liability - Ladders, scaffolds, shopping carts, fires & explosions, oil & gas industry, guarding, machine guarding, warnings, heavy trucks, brakes

Investigated over 625 ladder/climbing equipment accidents involving stepladders, fixed ladders, extension ladders, articulated ladders, combination ladders, rolling ladders, and telescoping ladders, folding attic stairways, fixed stairways and scaffolds. Co-authored three publications on ladder safety. Appeared on television three times to discuss shopping cart safety. Investigated fires and explosions, heavy truck accidents, industrial accidents, oil & gas industry, guarding, warnings, and plumbing failures.

Mechanical Engineering, Intellectual Property - Automation, Robotics, Machine, Design, Mechatronics, Dynamics, Motion Control, Vibration, Segway, Product Liability, Machine Vision, Sensors, Traction, Tire Mechanics, Cranes, Warnings, ASRS

Twenty years of experience developing and implementing mechatronic, motion control, and automation technologies. Founder of a motion-control technology company where the industry-recognized motion-control technologies were key drivers in the acquisition of his company 5 years after inception by a global leader in automation. Served as CTO at a world-class supplier of large-scale automation, advanced manufacturing, and nuclear handling solutions. Responsibilities include providing technical oversight of critical projects; identifying and mitigating areas of high technical risk; leading in the creation of cutting-edge control, automation, and robotic technologies; directing R&D efforts; managing the business’ technology portfolio; and disseminating and facilitating the use of best-practice engineering methodologies. Adjunct Associate Professor at the Georgia Institute of Technology where he lectures on various engineering topics. These include: Dynamics, Advanced Controls, Vibratio...