20 ILCS 1205/18.1
The rights, powers, duties, and functions vested in the Department of Financial Institutions to administer the Uniform Disposition of Unclaimed Property Act (superseded by the Revised Uniform Unclaimed Property Act) are transferred to the State Treasurer on July 1, 1999 in accordance with Sections 0.02 through 0.06 of the State Treasurer Act; provided, however, that the rights, powers, duties, and functions involving the examination of the records of any person that the State Treasurer has reason to believe has failed to report properly under this Act shall be transferred to the Office of Banks and Real Estate if the person is regulated by the Office of Banks and Real Estate under the Illinois Banking Act, the Corporate Fiduciary Act, the Foreign Banking Office Act, the Illinois Savings and Loan Act of 1985, or the Savings Bank Act and shall be retained by the Department of Financial Institutions if the person is doing business in the State under the supervision of the Department of Financial Institutions, the National Credit Union Administration, the Office of Thrift Supervision, or the Comptroller of the Currency.
20 ILCS 1205/18.1