Expert Witness Services

Expert Witness Services

Expert on all mobility devices for both plaintiffs and defendants

  • Represents both plaintiff and defendant
  • Expert on all mobility devices: manual wheelchairs, powered wheelchairs, scooters, adaptive ski equipment, rollators, walkers, hospital gurneys as well as ADA access issues.
  • All claims are based on evidence found in testing the actual model of the equipment and area involved in the incident being questioned, as well as personal experience with access issues while using mobility devices.


Peter Axelson Headshot 

Peter W. Axelson, Director of Research & Development, has been an expert witness on over 90 cases throughout the United States. His expertise can be used as a resource for attorneys and clients with cases pertaining to any mobility device or assistive technology including but not limited to: wheelchairs, wheelchair seating, wheelchair vehicle lifts, and transportation safety. Beneficial Designs, Inc. has experience representing both plaintiffs and defendants and supports all of their opinions with extensive inspections, measurements, testing, and personal experience. Beneficial Designs uses the actual model of the equipment involved in the incident being tried, as well as the specific conditions of the site involved.

Our expertise is specialized in wheelchair testing, standards, procedures and specifications, accessibility guidelines, ADA guidelines and regulations, ISO standards, RESNA standards, accessible fitness equipment, accessible recreational and leisure activities, surface measurement, disability issues, negligence and product liability. Mr. Axelson also has training in the writing of warnings from the Practicing Law Institute.

Peter W. Axelson received a B.S. degree in Mechanical Engineering and Product Design in 1979 and an M.S.M.E. degree in Smart Product Design in 1982, both from Stanford University. Peter has over 30 years of experience as a wheelchair user as a result of a spinal cord injury he sustained while serving as a cadet at the United States Air Force Academy. He is the founder and the Director of Research & Development at Beneficial Designs, Inc., a rehabilitation engineering design firm established in 1981 that works towards universal access through research, design, and education. His firm provides design consulting services for the design and testing of mobility devices as well as user manuals for the devices.

expert witness wheelchair assessment

Peter is currently Vice-Chair of the RESNA Standards Committee on Wheelchairs and had chaired the committee for 26 years and he is also a member of the ASTM Playground Surfacing Systems and Fitness Products Subcommittees. In addition, he has served on the American Trails Board of Directors, and has been a member of the Recreation Access Advisory Committee to the U.S. Access Board (U.S. Architectural and Transportation Barriers Compliance Board) and also the Regulatory Negotiation Committee on Outdoor Developed Area Guidelines.

To discuss specific cases, please contact This email address is being protected from spambots. You need JavaScript enabled to view it. at Beneficial Designs, Inc. today.