Based on title 18, U.S.C., 1940 ed., § 877 (May 13, 1930, ch. 254, § 7, 46 Stat. 272).

Minor change was made in phraseology.

1984—Pub. L. 98–473 amended section generally, substituting “Determination of the existence of insanity at the time of the offense” for “Retransfer upon recovery” in section catchline, and substituting provisions relating to motion for pretrial psychiatric or psychological examination, and special verdict, for provisions relating to retransfer to a penal or correctional institution upon recovery of an inmate of the United States hospital for defective delinquents.