(1) A person entitled to file a petition for trial under Article 139 (1) may intervene in the trial before the closing of hearings.
(2) An intervenor under paragraph (1) may continue trial proceedings even after the party in whose favor the intervenor enters the proceedings voluntarily withdraws his or her petition for the trial.
(3) A person who has an interest in the result of a trial may intervene in the trial proceedings to assist either party before the closing of hearings.
(4) An intervenor under paragraph (3) may take part in all trial proceedings.
(5) If an intervenor under paragraph (1) or (3) has a ground to suspend or discontinue trial proceedings, such suspension or discontinuance shall be effective also in relation to the party in whose favor the intervenor entered the proceedings.[This Article Wholly Amended on Jun. 11, 2014]