Act for Settlement of Labor-Management Disputes Article 33

The arbitration committee shall assign member(s) to investigate the fact of the dispute; unless there are unusual circumstances, the member(s) shall submit the fact-finding report to the committee within ten days after the assignment.The arbitration committee shall make an arbitration decision within twenty days after receiving the fact-finding report; nevertheless, with the consent of the parties, the foresaid time limit can be extended by ten days.When the member(s) of arbitration committee conducts the fact-finding or the arbitration committee is convened, the competent authority shall notify the parties, persons or business entities concerned to provide oral or written statements; if necessary, the member(s) may enter into the business entity concerned for interviewing and investigating with the approval of the competent authority.The persons being notified or interviewed as referred to in the preceding Paragraph shall not make false statements, provide false information or refuse to explain without justifiable reasons.
中文原文 勞資爭議處理法第33條
仲裁委員會應指派委員調查事實,除有特殊情形外,調查委員應於指派後十日內,提出調查結果。
仲裁委員會應於收到前項調查結果後二十日內,作成仲裁判斷。
但經勞資爭議雙方當事人同意,得延長十日。
主管機關於仲裁委員調查或仲裁委員會開會時,應通知當事人、相關人員或事業單位以言詞或書面提出說明;仲裁委員為調查之必要,得經主管機關同意後,進入相關事業單位訪查。
前項受通知或受訪查人員,不得為虛偽說明、提供不實資料或無正當理由拒絕說明。

English translation for reference only; the Chinese text prevails. Not legal advice.