Customs Anti-smuggling Act Article 39

Ⅰ.Where an inward or outward passenger carrying dutiable or controlled goods but not applies for inspection or intends to evade inspection, the goods in question shall be confiscated, and that passenger may be penalized pursuant to Paragraph 1, Article 36.Ⅱ.Where a passenger declaring the importation or exportation of the unaccompanied baggage violates this Act or relevant laws, or evades customs duty, a penalty shall be imposed pursuant to the provision of Article 37.
中文原文 海關緝私條例第39條
旅客出入國境,攜帶應稅貨物或管制物品匿不申報或規避檢查者,沒入其貨物,並得依第三十六條第一項論處。
旅客報運不隨身行李進口、出口,如有違法漏稅情事,依第三十七條論處。

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