Referendum Act Article 50
If the number of votes for or against a referendum proposal is misrepresented in a manner that could have affected the results of the referendum, a public prosecutor or the lead proposer of the referendum proposal may, within fifteen days of the date on which the results of the referendum are announced, file a lawsuit with the court with jurisdiction to confirm whether the referendum proposal was passed or rejected, naming the relevant election commission as the defendant.If a court renders a final judgment in a lawsuit to confirm whether a referendum proposal was passed or rejected, and the judgment changes the original results of the referendum, the competent authority shall, within seven days of receiving the judgment, take the actions stipulated in Articles 30 and 31.