The purpose of the Act on The Protection of Children Against Sexual Abuse is to prepare procedures for relieving and assisting victimized children and juveniles, and protecting them against sexual abuse and assisting them to become sound members of society. Any person who commits an offense of indecent act against a child or juvenile shall be punished by imprisonment with labor for a limited term of at least two years or by a fine of at least ten million won, but not more than 30 million won. From the perspective of children and juveniles, protection of their sexual autonomy should have special meaning. Understanding of self, will, sex, age, and environment of children must be considered when the court make decision on the relevant cases. Sexual violence against children must have devastated effect on their development towards a man or woman who fully enjoys his or her own self determination of sex. The case reviewed by this essay is on the issue of medical treatment by pediatrist and indecent act against children patients. The court denied victims’ statement on their victimization as a guess or emotional reaction, not real experiences. Investigators and judges should have special understanding on the characteristics of child victim’s statements on his or her experiences. Most of all, the criminal court in sexual violence cases should pay attention not to the consistency of statement by children, but to the special behaviour and mind of their victimization, and further to the social context of sexual violence.