Consumer Protection Act Article 7-1

Trader shall bear the burden of proof where he claims that the goods or services provided meet and comply with the contemporary technical and professional standards of reasonably expected safety requirements when placing the goods into the stream of commerce, or at the time rendering services.Goods or services cannot be considered non-compliance with the safety requirements described in the previous paragraph for the sole reason that safer goods or services are subsequently available.
中文原文 消費者保護法第7-1條
企業經營者主張其商品於流通進入市場,或其服務於提供時,符合當時科技或專業水準可合理期待之安全性者,就其主張之事實負舉證責任。
商品或服務不得僅因其後有較佳之商品或服務,而被視為不符合前條第一項之安全性。

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