While the police were 'ping-pong about the incident,,,,,,,,, the video showing the subway assaulter disappeared.'

Around 12:10 a.m. on June 1st, Mr. Kang (41), who had come up from the provinces on the KTX from the Seoul Station platform on Line 1, boarded the down line train on Line 1 to go to Singil Station. Suddenly, a woman in her 60s in a wheelchair approached Mr. Kang, grabbed him by the nape of the neck, and began twisting his arms. Ms. A reportedly said, "Why are you secretly filming me?" and the assault continued until they passed the next station, Namyeong Station. Mr. Kang barely managed to escape, The police reported the incident to the police as the train passed Yongsan Station, and the case was reported to the Seoul Guro Police Station, which has jurisdiction over Guro Station, the terminus of the train where Kang boarded. Although officers from Guro Station were dispatched to Guro Station, they were unable to apprehend A because A got off at Sindorim Station , just one stop ahead. However, three months have passed since the incident, but the police have not yet identified Mr. A. However, at Seoul subway stations, they are searching for evidence of Mr. A's assault and his movement. Despite the security cameras (CCTV) installed throughout the area, the police couldn't find any trace of Mr. A because the police stations had a so-called 'ping-pong' of the incident, Kang explained. After Kang reported it to the police, the incident circulated around 'Guro→Namdaemun Shrine→ →Railway Police' for about two weeks, but Guro, who first reported the case, said the assault started at Seoul Station and referred the case to Namdaemun Newspaper, the police station in charge of Seoul Station. Namdaemun Newspaper Incident Assault They considered the location to be Namyeong Station and tried to transfer the case to Yongsan Station, but Yongsan Station refused to accept the case, saying, "Guro Station mistakenly transferred the case from the start," and Namdaemun eventually returned it to Guro Seo, where it first received the case.  After receiving the case again, Guro reportedly handed it over to the railway police,,, However, by the time the railway police began their investigation, there was already no evidence to track down Mr. A. Korea Railroad Corporation, which manages the Seoul subway   , and others set the maximum retention period for CCTV footage inside trains, but the police were conducting nearly two weeks of disputes over jurisdiction before automatically deleting the footage.