Defendant was roaming the street after drinking alone at night. He followed Victim (a 17-year-old girl) getting off the bus and walking alone. Upon nearing a desolated place, Defendant approached the Victim, while wearing and mask, holding both of his arms high to hug her. Sensing someone behind her, the Victim turned around and yelled “What are you doing?” to which the Defendant remained still and stared for a few seconds before retreating. Defendant was indicted on attempting to assault a child or juvenile which is in violation of the Act on the Protection of Children and Juveniles against Sexual Abuse. The first instance court found the Defendant guilty but the appeals court reversed the first instance judgment and acquitted Defendant. The Prosecutor then appealed to the Supreme Court. The Supreme Court held the crime of indecent act by force includes an indecent act committed after making the other party unable to resist by use of violence or threat and the act of assault itself is considered as an indecent act, and such assault is not confined to the extent of suppressing the other party’s will. An indecent act refers to an act that deviates from sexual moral norms causing a victim to feel shame or disgust, and violating the victim’s sexual freedom. Whether such crime is established should be carefully determined by factoring in: the victim’s reciprocity, gender, and age; relationship between the victim and perpetrator prior to the act; circumstances leading to the act; means and method used to commit the act; objective circumstances; and sexual moral norms at the time. In addition, the crime of attempted indecent act by force is established when the act of violence with the intention to commit an indecent act does not lead to actual commission of indecent act, and this legal principle applies to cases of “indecent act by surprise” where the act of assault in itself is acknowledged as an indecent act. Accordingly, Defendant was charged of violating the Act on the Protection of Children and Juveniles against Sexual Abuse.