Constitutional Court Procedure Act Article 21

(Time and Conditions for Petition Withdrawal)A petitioner may, prior to the announcement or publication of the decision, withdraw the petition in whole or in part; provided that such a withdrawal is subject to the permission of the Constitutional Court where the petition concerns principles of constitutional significance.If the oral argument session has been held in a case where a respondent exists, the withdrawal referred in the preceding Paragraph requires the consent of the respondent.The withdrawal of a petition must be made in writing. Notwithstanding, it may be made orally at the oral argument session and recorded in the transcript.In the case that the withdrawal is made orally in accordance with the preceding Paragraph, the transcript shall be served on the respondent if she or he fails to appear at the oral argument session.The respondent is deemed to have agreed to the withdrawal if she or he does not enter a demurrer within ten days, from the date of the oral argument session where the respondent appeared but failed to express their agreement or disagreement, or, from the date of the service of the transcripts where the respondent fails to appear at the oral argument session, or, from the date of the withdrawal pleadings where the withdrawal is made in writing.The petitioner may not re-lodge a petition which has been withdrawn.