(725 ILCS 5/115-14) (from Ch. 38, par. 115-14)
    Sec. 115-14. Witness Competency. (a) Every person, irrespective of age, is qualified to be a witness and no person is disqualified to testify to any matter, except as provided in subsection (b).
    (b) A person is disqualified to be a witness if he or she is:
    (1) Incapable of expressing himself or herself concerning the matter so as to be understood, either directly or through interpretation by one who can understand him or her; or
    (c) A party may move the court prior to a witness' testimony being received in evidence, requesting that the court make a determination if a witness is competent to testify. The hearing shall be conducted outside the presence of the jury and the burden of proof shall be on the moving party.
(Source: P.A. 85-1190.)