Enforcement Rules of the Labor Insurance Act Article 6

Insurer or the central competent authority, when conducting the labor insurance inspections in accordance with Article 28 of the Act, shall present the documents certifying the performance of their duties.For purposes of reviewing insurance benefits, the insurer may entrust medical service institutions, physicians of related disciplines, or professional institutions, groups, or experts to assist with business needs.
中文原文 勞工保險條例施行細則第6條
保險人或中央主管機關依本條例第二十八條規定派員調查有關勞工保險事項時,應出示其執行職務之證明文件。
保險人為審核保險給付,得視業務需要委請醫事服務機構、相關科別之醫師或專業機構、團體、專家協助之。

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