(225 ILCS 705/31.32) (from Ch. 96 1/2, par. 3132)

Sec. 31.32. No person shall obstruct or cause any obstruction in any air current, or leave open any door or other means provided to control the air current, or perform any act that will interfere with the air current of the mine, without permission from the Mine Manager.

(Source: Laws 1953, p. 701.)