Declaration against interest

Evidence
Part of the common law series
Types of evidence
Testimony · Documentary Real (physical) · Digital Exculpatory · Scientific Demonstrative Eyewitness identification Genetic (DNA) · Lies
Relevance
Burden of proof · Laying a foundation Public policy exclusions · Spoliation · Character · Habit · Similar fact
Authentication
Chain of custody Judicial notice · Best evidence rule Self-authenticating document Ancient document
Witnesses
Competence · Privilege Direct examination Cross-examination  · Redirect Impeachment · Recorded recollection Expert witness · Dead Man's Statute
Hearsay and exceptions
in English law · in United States law Confessions · Business records Excited utterance · Dying declaration Party admission · Ancient document Declaration against interest Present sense impression · Res gestae Learned treatise · Implied assertion
Other common law areas
Contract · Tort · Property Wills; trusts and estates Criminal law
v · d · e

Declarations against interest are an exception to the rule on hearsay in which a person's statement may be used, where generally the content of the statement is so prejudicial to the person making it that she would not have made the statement unless she believed the statement was true. The Federal Rules of evidence limit the bases of prejudices to the declarant to tort and criminal liability. Some states, such as California, extend the prejudice to "hatred, ridicule, or social disgrace in the community."

A declaration against interest differs from a party admission because here the declarant does not have to be a party to the case, but must have a basis for knowing that the statement is true. Furthermore, evidence of the statement will only be admissible if the declarant is unavailable to testify.

For example, California's Evidence Code Section 1230 defines "Declarations against interest" as

“

Evidence of a statement by a declarant having sufficient knowledge of the subject is not made inadmissible by the hearsay rule if the declarant is unavailable as a witness and the statement, when made, was so far contrary to the declarant's pecuniary or proprietary interest, or so far subjected him to the risk of civil or criminal liability, or so far tended to render invalid a claim by him against another, or created such a risk of making him an object of hatred, ridicule, or social disgrace in the community, that a reasonable man in his position would not have made the statement unless he believed it to be true.

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