There are two principle types of presumptions in civil law, the Thayer presumptions, and the Morgan presumptions. “Under the Thayer theory, a presumption places the burden of production of evidence on the party against whom it operates but disappears if that party produces contrary evidence.” In re Estate of Langeland,…

The burden of proof has two parts: a burden of production and a burden of persuasion. Fed. Signal Corp. v. Safety Factors, Inc., 125 Wn.2d 413, 433, 886 P.2d 172 (1994). A party with the burden of production on a particular fact in issue must produce sufficient evidence to warrant submitting…