(20 ILCS 1807/49)
    Sec. 49. Article 49. Depositions.
    (a) At any time after charges have been signed as provided in Article 30 of this Code, any party may take oral or written depositions unless the military judge hearing the case or, if the case is not being heard, an authority competent to convene a court-martial for the trial of those charges forbids it for good cause.
    (b) The party at whose instance a deposition is to be taken shall give to every other party reasonable written notice of the time and place for taking the deposition.
    (c) Depositions may be taken before and authenticated by any military or civil officer authorized by the laws of this State or by the laws of the place where the deposition is taken to administer oaths.
    (d) A duly authenticated deposition taken upon reasonable notice to the other parties, so far as otherwise admissible under the rules of evidence, may be read in evidence or, in the case of audiotape, videotape, digital image or file, or similar material, may be played in evidence before any military court, if it appears:
        (1) that the witness resides or is beyond the state in which the court is ordered to
    
sit, or beyond 100 miles from the place of trial or hearing;
        (2) that the witness by reason of death, age, sickness, bodily infirmity,
    
imprisonment, military necessity, non-amenability to process, or other reasonable cause, is unable or refuses to appear and testify in person at the place of trial or hearing; or
        (3) that the present whereabouts of the witness is unknown.
(Source: P.A. 99-796, eff. 1-1-17.)