The Commodity Inspection Act Article 51

Personnel appointed to execute the inspection, investigation, or testing in accordance with the preceding two Articles shall present their relevant credentials before carrying out their duties.Parties subject to the inspection, investigation, testing, or sealing of the suspected commodity under the preceding two Articles shall not evade, impede, or refuse such procedures without justifiable reasons.
中文原文 商品檢驗法第51條
依前二條規定執行檢查、調查或檢驗之人員,應出示有關證件。
依前二條規定受檢查、調查、檢驗或封存者,無正當理由,不得規避、妨礙或拒絕。

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