Referendum Act Article 51
If a voter discovers any fact that would render the referendum or the results thereof invalid, he/she may, within seven days of the date on which the results of the referendum are announced, submit evidence to a public prosecutor for prosecution.
中文原文 公民投票法第51條
投票權人發覺有構成公民投票投票無效、公民投票案通過或不通過無效之情事時，得於投票結果公告之日起七日內，檢具事證，向檢察官舉發之。