A determination that an individual is dead or a determination that he has been detained by a hostile force or person may be made on the basis of evidence that he has disappeared under circumstances such as to make such death or detention appear probable.
(Dec. 2, 1942, ch. 668, title II, § 206, 56 Stat. 1034; Pub. L. 85–608, title I, § 104, Aug. 8, 1958, 72 Stat. 537.)