230 ILCS 40/79
Investigators appointed by the Board pursuant to the powers conferred upon the Board by paragraph (20.6) of subsection (c) of Section 5 of the Illinois Gambling Act and Section 80 of this Act shall have authority to conduct investigations, searches, seizures, arrests, and other duties imposed under this Act and the Illinois Gambling Act, as deemed necessary by the Board. These investigators have and may exercise all of the rights and powers of peace officers, provided that these powers shall be (1) limited to offenses or violations occurring or committed in connection with conduct subject to this Act, including, but not limited to, the manufacture, distribution, supply, operation, placement, service, maintenance, or play of video gaming terminals and the distribution of profits and collection of revenues resulting from such play, and (2) exercised, to the fullest extent practicable, in cooperation with the local police department of the applicable municipality or, if these powers are exercised outside the boundaries of an incorporated municipality or within a municipality that does not have its own police department, in cooperation with the police department whose jurisdiction encompasses the applicable locality.
230 ILCS 40/79