10 ILCS 5/6-46
The circuit court of the county in which such city, village or incorporated town shall be located, shall, on Friday and Saturday of the week prior to the week in which such election is to be held, especially sit to hear such applications as shall be made to it to be placed upon the registry in any particular precinct: Provided, however, that the circuit court of any county in which a municipality is located having a population of over 200,000 and having a board of election commissioners, and in cities, villages and incorporated towns within the jurisdiction of such board, shall especially sit to hear such applications on Monday and Tuesday of the first week prior to the week in which such election is to be held. Such application shall be sworn to, and shall state that the party making the same has applied to the precinct registration officers, or to the board of election commissioners, and that said precinct registration officers, or board of election commissioners, as the case may be, refused to place his name upon such registry or to complete his registration or has stricken his name from such registry. Application shall be made on or before the opening of the court on Friday or Monday last aforesaid, as the case may be, and the court shall cause a docket of such applications to be made out, arranged by wards and precincts, and the same shall be heard, summarily and evidence may be introduced for and against such application. Each case shall be decided at once on hearings and the clerk of the court shall make a minute of the disposition of each application; a copy of such minute shall at once be given to the board of election commissioners which shall forthwith cause such name to be placed upon the original and duplicate registration records if the court has so ordered, and indicate that it was entered by order of court. After the entry of the order to be restored, or to be registered or to complete registration, no further change shall be permitted in the original and duplicate registration records by the board of election commissioners, and such records shall constitute the official registration for the election to be held on the first Tuesday after the first Monday in November, 1936. No person admitted to the register by order of such court shall be protected by such order from a criminal prosecution for any violation of the provisions of this Act.
10 ILCS 5/6-46