Labor Inspection Act Article 22

(Ⅰ)Upon entering a business entity for inspection, labor inspector shall show his inspector identification card and notify the employer and the union. The business entity may refuse inspection by a labor inspector without the labor inspector identification card.(Ⅱ)Upon completion of an inspection, the labor inspector shall complete the inspection record and notify the business entity the contraventions and provide suggestions based on the requirements of Labor Acts to the employer and his employees.(Ⅲ)The labor inspector identification card prescribed in Paragraph 1 above shall be issued by the Central Competent Authority.
中文原文 勞動檢查法第22條
勞動檢查員進入事業單位進行檢查時,應主動出示勞動檢查證,並告知雇主及工會。
事業單位對未持勞動檢查證者,得拒絕檢查。
勞動檢查員於實施檢查後應作成紀錄,告知事業單位違反法規事項及提供雇主、勞工遵守勞動法令之意見。
第一項之勞動檢查證,由中央主管機關製發之。

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