National Human Rights Commission of Korea Annual Report 2015 a survey on their rights to labor and social security from April to November. The survey was a Part II “special workers”) are increasing in numbers and variety. Therefore, the Commission conducted follow-up investigation for the survey on the infringement on labor rights of five special types of The result found that the actual number of the special workers were nearly four times larger than the official statistics from the government: 2.3 million. The Commission then conducted another survey on 1,027 special workers in 36 occupations in 13 job groups. The result suggested that special workers had barely any difference from their counterparts who signed an employment agreement when it comes to their elements as employees of business owners. However, existing legislation was not in favor of the special workers, making it difficult to recognize their right to labor and social security. Therefore, the Commission raised a claim against the problems in the existing laws related to labor and social security, recommending a legislative approach to improve the situation. I. Survey ‌ on isolation and forced confinement practices in mental health facilities Among the mentally-ill who have or had been hospitalized in mental health facilities, 45% experienced isolation or binding. And among the complaints concerning mental health facilities, complaints made against isolation or binding account for more than 15%. To this point, there has been no research effort to cover the cause and structural background of isolation or binding, perspectives of patients and medical staff, situation of the actual sites, and cases from overseas. Therefore, the Commission conducted a survey from April to November to get to the bottom of isolation or binding in mental health facilities and to come up with appropriate solutions. As a result, the survey discovered many elements of human rights violation, including the terrible environment of isolation rooms and binding tools, and the reckless enforcement of isolation or binding. Therefore, the Commission came up with a policy basis to complement the existing guidelines, including measures to improve the conditions of isolation or binding, standardize the records of isolation or binding, and make facility staffs observe the maximum duration of isolation. J. ‌Survey on the human rights situation for immigrant workers in the construction industry In many construction sites, the number of immigrant workers has been on the increase. This Part II Major Activities of NHRCK | 47 Major Activities of NHRCK employees in 2006.