Negotiable Instruments Act Article 17
If a signature or an insertion on a negotiable instrument is cancelled or struck out except by the intentional act of the obligee, the legal force and effect of the signature or insertion on the instrument shall not be affected.
中文原文 票據法第17條
票據上之簽名或記載被塗銷時，非由票據權利人故意為之者，不影響於票據上之效力。