Recent crime is serious. The police who investigate crime seriously impact. It is a psychological impact on the police. police officer or police investigation leaves many great events that have suffered since. In this study, post-traumatic stress disorder (Post Traumatic Stress Disorder; PTSD) have studied the impact policeman impact on organizational commitment. In order to measure post-traumatic stress disorder and divide this study, arousal, avoidance, invasive, post-traumatic stress disorder and sleep disorders in the sub-region. Organizational commitment and affective commitment, continuance commitment and normative commitment divided. We were in Daegu Metropolitan Police Agency survey of police officers belonging to the investigation officer. As a result, the impact on affective commitment invasion. To avoid the influence on continuance commitment. Avoidance of invasive and normative factors had influenced. With the help of information technology.