205 ILCS 5/52
If, in addition to a finding as provided in Section 51, the Commissioner shall be of the opinion and shall find that an emergency exists which may result in the inability of the bank to continue in its operations, meet the demands of its depositors, or pay its obligations in the normal course of business , he may, in his discretion, without having given the notice provided for in Section 51, and whether or not proceedings under Section 51 have been instituted or are then pending, forthwith take possession and control of the bank and its assets for the purpose of examination, reorganization or liquidation through receivership. For purposes of this Section, an emergency includes, but is not limited to, when the bank is in an unsafe or unsound condition that precludes continued operations or when the interests of the bank's depositors are prejudiced.
205 ILCS 5/52