(730 ILCS 5/5-1-5)
(from Ch. 38, par. 1005-1-5)
"Conviction" means a judgment of conviction or sentence entered upon a
plea of guilty or upon a verdict or finding of guilty of an offense,
rendered by a legally constituted jury or by a court of competent
jurisdiction authorized to try the case without a jury.
(Source: P.A. 77-2097.)