When interviewing a victim as an unsworn witness concerning the circumstances of damage, the investigating authorities take note not to bring discredit on the victim as well as to pay due attention to the victim's position and feelings. In such interviews, the victim's feelings about the damage are often heard and added to the written statements. The victim's feelings of suffering damage may be considered as one of the important factors when the public prosecutor judges the necessity of prosecution under the principle of discretionary prosecution.