Plant Protection and Quarantine Act Article 19-1

Plants or plant products in transit that are suspected of being infested by pests or possibly spreading pests may be subject to appropriate quarantine or other safety measures determined by the plant quarantine authority.
中文原文 植物防疫檢疫法第19-1條
過境植物或植物產品有感染或散布有害生物之虞者,植物檢疫機關得施行檢疫,並採行其他安全措施。

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