55 ILCS 5/3-14016
All applicants for offices or places in said classified service, except those mentioned in Section 3-14022 shall be subjected to examination, which shall be public, competitive and open to all citizens of the United States who possess the prerequisites necessary to the performance of the duties of the position, with specified limitations as to residence, age, health, habits and moral character, as stated in the notice of the examination. Such examinations shall be practical in their character and shall relate to those matters which will fairly test the relative capacity of the persons examined to discharge the duties of the positions to which they seek to be appointed, and shall include tests of physical qualifications and health, and when appropriate, of manual skill. No questions in any examination shall relate to political or religious opinion or affiliations. The commission shall control all examinations and may, when an examination is to take place, designate a suitable number of persons, either in or not in the official service of said county, to be examiners; and it shall be the duty of such examiners, and, if in the official service, it shall be a part of their official duty, without extra compensation, to conduct such examination as the commission may direct, and make return or report to said commission; and the commission may at any time, act as such examiners, and without appointing examiners. The examiners at any examination shall not all be members of the same political party.
Every applicant who desires to take any civil service examination provided for by this Division, shall, at the time of making application, pay to the County a fee, as hereinafter provided, to defray the expenses of such examination. Such fee shall be deposited in the general fund of the County. Fees to be paid shall be determined from the minimum announced salary for the positions to be filled, and shall be as follows: Minimum salary of less than $1200 annually $0.50 Minimum salary of $1200 or over and less than $2000 annually 1.00 Minimum salary of $2000 or over and less than $3000 annually 2.00 Minimum salary of $3000 or more annually 3.00 which do not carry monetary compensations shall be fixed by action of the Commission at the time such examinations are called.
55 ILCS 5/3-14016