Provides human-injury impact analysis in vehicular accidents, amusement park ride accidents, and cases involving falls or falling objects by performing occupant motion studies to determine injury potential/causation, seatbelt use, the effects of airbag interaction, and determination of occupant positions. The employee is frequently required to stand, walk on slope roofs, sit, climb ladders, bend, climb inside attics and crawl under homes and tunnels, balance, stoop, kneel, crouch, talk, hear, and drive a motor vehicle to job sites.