About Ruhl Forensic Dr. Ruhl began investigating accidents in the Midwest in the mid-70s when his services as a mechanical engineer were sought by insurance companies to inspect vehicles involved in accidents for possible mechanical defects. His services expanded to include all phases of accident investigations and reconstructions, both vehicular and machinery. A number of other individuals joined the firm, originally known as Ruhl and Associates, in the 1980s. In 1991 the firm moved its main office to Champaign, IL. Dr. Ruhl additionally has been affiliated with the University of Illinois at Urbana-Champaign since 1970. He originated the Senior Design Project concept in the Department of General Engineering, a concept that brings senior engineering students together with industrial sponsors and that provides in depth study of engineering problems needing solution by the particular industry.