(330 ILCS 90/1)
(from Ch. 126 1/2, par. 45)
The State, every political subdivision thereof and the municipal
corporation therein shall permit its police officers, while they are on
duty, and each municipal corporation shall permit its firemen, while they
are on duty, to wear buttons evidencing the fact that they have served in
the military forces of the United States.
(Source: P.A. 79-372.)