His primary emphasis is the forensic assessment of psychological injuries arising from motor vehicle, aviation, maritime, and industrial accidents; sexual assault and harassment; as well as workplace disability claims. He also consults on professional malpractice matters. He is the first author of Koch, W.J., Douglas, K.S., Nicholls, T.L., & O'Neill, M. (2006). Psychological Injuries: Forensic Assessment, Treatment, and Law, Oxford University Press. He has published over 40 articles and book chapters, many conference presentations, and taught a number of training workshops in forensic psychology. Dr. Koch also has an interest and expertise in the treatment of MVA-related PTSD and driving fear and avoidance. Relevant recent academic work includes: