CASUS AMISSIONIS

casus amissionis (kay-s[schwa]s [schwa]-mis[h]-ee-oh-nis). [Latin “the occasion of the loss”] Hist. The circumstances under which a document is lost or destroyed. • In an action to prove the contents of a lost instrument, the circumstances under which a document was lost was required evidence. Lost documents are now covered by Federal Rule of Evidence 1004(1).