225 ILCS 740/13
(Text of Section before amendment by P.A. 104-419)
It shall be unlawful for any person to resist or obstruct any officer, employee or agent of the Department in the discharge of his duties under the provisions of this Act.
Violation of this Section shall be a Class A misdemeanor.
(from Ch. 96 1/2, par. 6920)
(Source: P.A. 85-294.)