Illinois Compiled Statutes

735 ILCS 5/8-101 (2026)

Interested witness

✓ current as of May 2026
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(735 ILCS 5/8-101) (from Ch. 110, par. 8-101)
    Sec. 8-101. Interested witness. No person shall be disqualified as a witness in any action or proceeding, except as hereinafter stated, by reason of his or her interest in the event thereof, as a party or otherwise, or by reason of his or her conviction of any crime; but such interest or conviction may be shown for the purpose of affecting the credibility of such witness; and the fact of such conviction may be proven like any fact not of record, either by the witness himself or herself (who shall be compelled to testify thereto) or by any other witness cognizant of such conviction, as impeaching testimony, or by any other competent evidence.
(Source: P.A. 82-280.)


 
    (735 ILCS 5/Art. VIII Pt. 2 heading)
Part 2. Dead-Man's Act.

    
Notes of Decisions
Cited in 5 cases (1 in the last 5 years), 2001–2021 · leading case: People v. Naylor, 893 N.E.2d 653 (Ill. 2008).
People v. Naylor, 893 N.E.2d 653 (Ill. 2008). · cites it 2× “In Illinois, this harsh rule is abrogated in civil cases by section 8-101 of the Code of Civil Procedure (735 ILCS 5/8-101 (West 2006) (originally enacted at 1867 Ill.”
People v. Coe, 2021 IL App (4th) 200233 (Ill. App. Ct. 2021). “When we add to the implausibility and inconsistencies defendant’s two felony drug convictions (one in 2006 and the other in 2000) and his bias in his own favor, we are unable to characterize as manifestly erroneous the circuit court’s finding that he was not credible in his…”
Holtkamp Trucking Co. v. David J. Fletcher, M.D., L.L.C., 932 N.E.2d 34 (Ill. App. Ct. 2010). “Here, the administrative regulations have adopted the common-law rules of evidence and the Illinois evidence act (735 ILCS 5/8-101 through 8-2701 (West 2008) (article VIII of the Code of Civil Procedure)) to the extent they do not conflict with the Workers' Compensation Act or…”
Stein v. Chicago Park Dist. (Ill. App. Ct. 2001). “See 735 ILCS 5/8-101 (West 1998). Further, said testimony was not prejudicial to plaintiff's case.”
Holtkamp Trucking Co. v. Fletcher (Ill. App. Ct. 2010). “Here, the administrative regulations have adopted the common-law rules of evidence and the Illinois evidence act (735 ILCS 5/8-101 through 8-2701 (West 2008) (article VIII of the Code of Civil Procedure) to the extent they do not conflict with the Workers' Compensation Act or…”
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