65 ILCS 5/10-1-29

No person shall, in any room or building occupied for the discharge of official duties by any officer or employee in any municipality which adopts this Division 1, solicit, orally or by written communication, delivered therein, or in any other manner, or receive any contribution of money or other thing of value, for any party or political purpose whatever. No officer, agent, clerk, or employee under the government of such municipality, who may have charge or control of any building, office, or room, occupied for any purpose of such government, shall permit any person to enter the same for the purpose of therein soliciting or delivering written solicitations for receiving or giving notice of any political assessments.