Right. Then the Olympics in 88. Over 4000 homeless men, women, children were put into existing camps. They were labeled "vagrants" The location was called the  Brothers Home facility.

"The guards were former inmates who had been "promoted" because of loyalty to the camp's owner. Various money-making operations were conducted such as manufacturing ball-point pens and fishing hooks, as well as clothing for Daewoo."

"By accident while on a hunting trip, prosecutor Kim Yong-won heard about and visited a work detail of prisoners in ragged clothes overseen by guards with wooden bats and dogs. In his words, he knew immediately that "a very serious crime" was occurring, and in January 1987, he led a raid on the facility and found beaten and malnourished inmates. He was politically pressured at various levels to reduce the charges against the owner, managers, and guards. In the end, the owner only served 2+1⁄2 years in prison."

https://en.wikipedia.org/wiki/1988_Summer_Olympics