Key NHRCK Activities [Table 2-2-9] Mediation Cases Submitted and Processed in the Last Five Years (Unit: cases, %) Case closed Submitted Subtotal (①+②+③) Mediated ① Unmediated ② Decision in lieu of mediation Rejected ③ Completed Objection raised (10) (6) 78 184 184 74 32 2021 14 14 - - - - 14 2020 6 6 2 3 - - 1 2019 9 9 1 1 - - 7 2018 22 26 7 3 (4) - 16 2017 38 43 19 4 (1) - 20 * The figures in parentheses under “Decision in lieu of mediation” are included in cases mediated or unmediated. *The cumulative sum is the total from November 25, 2001 (the date of the establishment of the Commission), to December 31, 2021. Section 4. ‌Investigations and Remedies of Human Rights Violations and Discrimination A. Petitions Filed In 2021, a total of 7,430 petitions were filed in relation to human rights violations, which is 873 more (13.3%) compared to the previous year. This can be largely attributed to a recovery or increase in cases involving educational institutions, the police, and central administrative agencies, which had decreased last year due to the spread of COVID-19. By type of institution, there was a considerably larger number of petitions related to educational institutions, in relation to restrictions placed on student appearance and attire in middle schools and high schools, as well as those related to quarantine measures such as COVID-19 test, selfquarantine, vaccination, and negative COVID-19 PCR test certificate. On the other hand, since 2016, there has been a continuous decrease in cases involving human rights infringement in multiperson care facilities. 97 Part 3 Appendices 1. Petitions Filed and Processed Part 2 Key NHRCK Activities Cumulative sum Part 1 Introduction Classification