During Mike's trial, the prosecution calls Donna as a witness. When done questioning her the prosecutor dismisses her and she leaves the stand. After direct examination the defense attorney, Harvey in this case, must be given the opportunity to cross examine the witness or must state that they have no questions for this witness.
All witnesses scheduled to testify must wait outside or in a room designated for this purpose, and yet Donna is sitting in the audience watching the proceedings until it is her time to testify.