(20 ILCS 1815/42) (from Ch. 129, par. 270)
    Sec. 42. If any member of the Illinois State Guard in the performance of his military duty, or in pursuance thereof, and while acting in his capacity as a member of the Illinois State Guard, shall kill, wound, maim or injure any person, or shall cause, order or direct the killing, wounding, maiming or injuring of any person, or the injury, destruction or confiscation of any property, real or personal, it shall be the duty of the officer commanding the military force of which such member is a part, as soon as possible thereafter, to convene a board of inquiry to consist of not less than two nor more than five commissioned officers of the military force, who shall examine and inquire into the facts in connection with, or in relation to the act or acts to be inquired of, and take in writing the substance of the proof or evidence of the witnesses to, and participants in, such act or acts and transmit the same direct to The Adjutant General.
    The officer commanding the military force may cause the arrest of any member of the Illinois State Guard, so killing, wounding, or injuring any person or persons, or of the officer, or the non-commissioned, or warrant officer directly responsible therefor, by reason of orders given by him in the execution of his military duty, or otherwise, and hold him in arrest until he is surrendered to civil authorities.
(Source: Laws 1951, p. 1999.)