As a forensic scientist, Mr. Choi specialize in the scientific analysis of accidents by applying principles from physics, engineering, and human factors. His work involves detailed reconstructions of events in both automobile collisions and premises liability incidents to determine causes, contributing factors, and the potential for injury.

In automobile accident reconstruction, he uses concepts such as conservation of momentum, energy transfer, and vehicle kinematics to analyze crash dynamics. This includes passenger vehicle collisions, as well as bicycle and pedestrian accidents. He also incorporates human factors principles such as perception-response time to assess how individuals may have perceived and responded to events leading up to a collision.

For premises liability cases, he applies his knowledge of building codes, industry standards, and federal regulations to evaluate accident causes and safety compliance. These cases often involve slip/trip and falls, falling objects, and construction site incidents.

In biomechanical analysis, he leverages his background in physics and biomedical engineering to assess the forces involved in an incident and the potential for injury. He uses established metrics such as the Head Injury Criterion (HIC), Neck Injury Criterion (Nij), delta-V, and acceleration profiles.

To date, he has analyzed over 250 vehicle accident cases and more than 300 premises liability cases. He provides expert opinions in accident reconstruction, biomechanics, and human factors through reports, declarations, consultations, and testimony.