The Weights and Measures Act Article 57
The personnel who is assigned to perform an investigation, inspection, check and sampling tests shall show his credential(s) which may justify his status to perform such duties.
中文原文 度量衡法第57條
執行調查、檢查、稽查及抽測事務之人員依法執行公務時，應出示有關執行職務之證明文件。