term:

Dead Man's Statute

dead man's statute n

: a law barring the testimony of a person with an interest in an estate regarding any conversation with or any event taking place in the presence of the decedent called also dead man act dead man's act

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.