(concurring specially).
I concur in the opinion, with the following exception.
*685A pre-trial psychiatric examination of a witness in any case should be ordered by the trial court only upon a strong showing of need and justification. See generally, Note, Psychiatric Examinations of Witnesses: Standards, Timing and Use by Indigents, 55 Iowa L.Rev. 1286, 1298-1300 (1970). The trial court here did not abuse its discretion in denying defendant’s motion. I concur in that portion of the opinion on appeal solely on the above grounds.