(70 ILCS 1215/26) (from Ch. 24 1/2, par. 139)
    Sec. 26. No person who holds any public office, or who has been nominated for, or who seeks a nomination or appointment to any public office, shall corruptly use or promise to use, either directly or indirectly, any official authority or influence in or to secure or aid any person in securing for himself or for another, any office or public employment or any nomination, confirmation, promotion or increase of salary as a reward for political influence or service. No person appointed, or about to be appointed, to the position of member of the Civil Service Board, or to a position in the classified service, shall execute or sign a resignation in advance, dated or undated, for the purpose or with the result of permitting the appointing officer to create at his will a vacancy in the office of member of the Civil Service Board or in a position in the classified service.
(Source: Laws 1939, p. 418.)