Regulations Governing the Sampling and Inspection of Foods Sold in Markets Article 3

When conducting the sampling and inspection of foods sold in markets, the personnel of competent authority shall produce food inspection certificate to food dealers or food retailers, and inform them the subject of verification.
中文原文 市場銷售糧食抽查及檢驗辦法第3條
主管機關執行市場銷售糧食抽查或檢驗之人員,應向糧商或糧食零售業者出示糧食檢查證,並告知查核事由。

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