Labor Standards Act Article 74

(Ⅰ)A worker, upon discovery of any violation by the business entity of the Act and other labor laws or administrative regulations, may file a complaint to the employer, competent authorities or inspection agencies.(Ⅱ)An employer may not terminate, transfer, reduce the wages of, or harm the rights and benefits in accordance with the law, contract or norm of such a worker nor take any unfavorable measures against the worker who files a complaint in accordance with the preceding Paragraph.(Ⅲ)If the employer commits any of the actions mentioned in the preceding Paragraph, that action shall be null and void.(Ⅳ)Upon receipt of a complaint of the type from the first paragraph, the competent authority or the inspection agency shall conduct the necessary investigations and notify the worker in writing of its handling within sixty days.(V)The competent authority or the inspection agency shall keep the identity of the complainant confidential and shall not disclose any information which might reveal the identity of the complainant.(VI)For those who violate the provisions of the preceding Paragraph, in addition to civil servants being held liable to criminal laws and administratively responsible, shall be liable for damages to the worker.(VII)The central competent authority shall establish the rules and regulations for competent authorities regarding the confidentiality of accepting reported complaints and other matters that must be complied with.
中文原文 勞動基準法第74條
勞工發現事業單位違反本法及其他勞工法令規定時,得向雇主、主管機關或檢查機構申訴。
雇主不得因勞工為前項申訴,而予以解僱、降調、減薪、損害其依法令、契約或習慣上所應享有之權益,或其他不利之處分。
雇主為前項行為之一者,無效。
主管機關或檢查機構於接獲第一項申訴後,應為必要之調查,並於六十日內將處理情形,以書面通知勞工。
主管機關或檢查機構應對申訴人身分資料嚴守秘密,不得洩漏足以識別其身分之資訊。
違反前項規定者,除公務員應依法追究刑事與行政責任外,對因此受有損害之勞工,應負損害賠償責任。
主管機關受理檢舉案件之保密及其他應遵行事項之辦法,由中央主管機關定之。

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