Building Act Article 62

The inspectors assigned by the competent authority of construction shall submit their identity certificates prior to inspection. The proprietor, constructor or supervisor may refuse those who do not have the identity certificates to perform inspection.
中文原文 建築法第62條
主管建築機關派員勘驗時,勘驗人員應出示其身分證明文件;其未出示身分證明文件者,起造人、承造人或監造人得拒絕勘驗。

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