16-2. Active Utilization of Identification and Protection Indicators for Human Trafficking Victims 138. Exploitation lies at the core of trafficking in persons: inflictors continually exploit victims and pocket compensation for the purpose of financial benefits without paying appropriate wage for their labor. The government needs to acknowledge the victims trafficked and trapped in prostitution and forced labor and charter countermeasures to eradicate the crime. 139. Considering the limited definition of human trafficking under the Criminal Act and ensuing difficulties in identifying victims, the NHRCK developed the Indicators for Identification and Protection for Human Trafficking Victims in June 2016, which was referenced in the 3rd Master Plan for Immigration Policy (2018-2022) as a measure to protect human rights of the art and entertainment visa holders. 140. However, the indicators should be considered as a general outline as compiled based on the cases already laid bare. This is why the law enforcement agency should proactively utilize the indicators but at the same time come up with measures to identify and protect victims on the ground. 16-3. Regular and Comprehensive Status Survey to Prevent Trafficking in Persons 141. While human trafficking of women migrant workers with the art and performance (E-6) visa for the purpose of sexual exploitation has long been an issue seeking attention but has failed to bring out desired improvement in the relevant institution, those who recently enter the country without any working permit, i.e., B-1 visitor visa holders, also reportedly fall victim to human trafficking and sexual exploitation.20 142. In July 2017 the media reported about 70 business owners and brokers were arrested en masse for having brought Thai women with B-1 visiting visas whom they locked in brothels around Busan and Jeju Island and forced into prostitution. The crime came up to the surface as, two months before they were arrested, one of the victims managed to avoid surveillance and secretly delivered a note to a deli clerk asking for help. 143. In February 2017, Asia Chang interviewed related personnel and Thai women 20 The Research on Reestablishing Guidelines for Human Rights of Immigrants, p. 255-257, released by the NHRCK in 2017 is referenced. 31