Mr. Moon called for a thorough investigation, urging his government to help other victims feel safe enough to speak out.
His remarks came as more than 260,000 people signed a petition to his office demanding a longer prison term for Mr. Cho.
Mr. Moon’s government was caught off guard by Ms. Shim’s allegations.
Only hours before Ms. Shim’s accusations were first reported in the local news media last Tuesday, the country’s Korean Sport and Olympic Committee reported making strong progress in its campaign to protect athletes against sexual and other types of abuse. In a survey of 1,201 athletes, including all 791 national team members, the committee said it had found only four cases of sexual violence. In a similar survey in 2010, almost 27 percent of respondents reported sexual abuse.
The government said it would open a more comprehensive investigation of sexual crimes in the sports community, vowing to expel perpetrators from the profession permanently and take steps to prevent schools and other teams from hiring them.
“One of the…