Enforcement Rules of Employment Service Law Article 12

The term "certificates" as referred to in Paragraph 1of Article 62 of the Act is defined as the service certificates, labor inspection certificates, or any other identification documents, official documents or letters made and issued by the competent authorities, competent authorities in charge of the entry and exit administrative authority, police offices, coastal patrol and defense agencies, or other judicial police authorities in order to conduct inspections.After having evaluated the surrounding circumstances, the competent authorities, competent authorities in charge of the entry and exit of border, police offices, police offices, coastal patrol and defense agencies, or other judicial police authorities may assign officers, accompanied by the local heads of the district subdivisions in a county/city and/or of the basic community unit thereof, with the certificates referred to preceding paragraph of this article, to conduct inspections in places where foreigners work or the places suspected of illegal work therein.
中文原文 就業服務法施行細則第12條
本法第六十二條第一項所稱證明文件,指主管機關、入出國管理機關、警察機關、海岸巡防機關或其他司法警察機關所製發之服務證件、勞動檢查證或其他足以表明其身分之文件及實施檢查之公文函件。
主管機關、入出國管理機關、警察機關、海岸巡防機關或其他司法警察機關得視實際情形,會同當地里、鄰長,並持前項規定之證明文件,至外國人工作之場所或可疑有外國人違法工作之場所,實施檢查。

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