105 ILCS 5/7-2.5
If no objection to the dissolution or detachment of territory prayed for in a petition under Section 7-2.4 of this Code is filed with the special charter school district or with the regional board of school trustees within 30 days after the filing of such petition , the dissolution or detachment of territory takes effect, subject to Section 7-9 of this Code . However, if an objection to the proposed dissolution or detachment of territory is filed with either the special charter district or the regional board of school trustees, the regional board of school trustees, within 15 days after receiving the objection, shall appoint 2 legal resident voters from the district or districts under its jurisdiction and involved in the proposed dissolution or detachment of territory, subject to the approval of the boards of education of the districts involved in the proposed dissolution or detachment of territory , and the board or governing body of the special charter district shall appoint 2 legal resident voters from the special charter district. Those 4 appointees shall meet within 20 days of their appointment and by a majority vote select 3 persons who reside outside the jurisdiction of the districts involved in the proposed dissolution or detachment of territory and who have a demonstrated interest and background in education. If a majority of the original 4 appointees cannot agree on the selection of the 3 additional members within 20 days of their appointment, the State Board of Education shall select the 3 additional persons, subject to the same criteria as required when selection is by the 4 appointees. The 4 appointees and the 3 additional persons selected under this Section constitute the Hearing Board and 4 members shall constitute a quorum.
Within 10 days after the Hearing Board has been selected the regional superintendent of schools of the region in which the special charter district is located shall call an organization meeting of said Hearing Board.
105 ILCS 5/7-2.5