(730 ILCS 5/5-1-5) (from Ch. 38, par. 1005-1-5)
    Sec. 5-1-5. Conviction.
    "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.)