Securities Investor and Futures Trader Protection Act Article 29
In the event that securities investors or futures traders withdraw the empowerment to institute an action or to submit matters to arbitration pursuant to Article 28, paragraph 1, that portion of the action or arbitration proceedings shall ipso facto be interrupted, and the securities investors or futures traders shall thereupon declare their intention of assuming the action or arbitration. The court or arbitral tribunal may also order ex officio, those securities investors or futures traders to assume the proceedings.When the protection institution has instituted an action or submitted a matter to arbitration in accordance with Article 28 and a portion of the securities investors or futures traders withdraw their empowerment for the same, with the result that the remaining portion numbers fewer than 20, the protection institution may nevertheless continue the arbitration or action with regard to the remaining portion.