## Introduction

A declaration against interest is a hearsay exception that lets a court consider a statement made by someone who is not testifying, if that statement was so damaging to the person’s own financial interests or legal exposure that a reasonable person would not have said it unless it was true. In the federal system, this appears in Federal Rule of Evidence 804(b)(3).

Two big qualifiers shape this exception. First, the declarant must be “unavailable” to testify. Second, in criminal cases, a statement that tends to expose the declarant to criminal liability must be backed by corroborating circumstances that clearly indicate trustworthiness. Courts also parse these statements carefully: only the self-inculpatory parts come in.

This guide explains what the rule requires, how courts apply it, and how to use (or challenge) it with real-world examples and leading U.S. Supreme Court cases.

## What You'll Learn

- What counts as a declaration against interest under FRE 804(b)(3)
- The unavailability requirement and how to show it
- Why only self-inculpatory parts are admissible after Williamson v. United States
- How Chambers v. Mississippi affects due process when reliable statements are excluded
- Practical steps for offering or opposing these statements in court
- How this exception compares with other hearsay rules (801(d)(2), 803(3), 804(b)(2), 807)

## Core Concepts

### Elements Under FRE 804(b)(3)

To use the declaration against interest exception in federal court, be ready to establish:

- Unavailability (FRE 804(a): privilege, refusal despite court order, lack of memory, death or serious illness, or absence when reasonable means can’t secure attendance or testimony).
- Content against interest: a reasonable person in the declarant’s position would have made the statement only if it were true because, at the time, it was so contrary to the declarant’s proprietary or pecuniary interest, had a strong tendency to invalidate the declarant’s claim against someone else, or had a strong tendency to expose the declarant to civil or criminal liability.
- Corroboration in criminal cases: if the statement is offered in a criminal case and tends to expose the declarant to criminal liability, it must be supported by corroborating circumstances that clearly indicate trustworthiness.
- Personal knowledge: the statement should reflect what the declarant personally knew, not speculation or rumor.

This exception can be used by any party—plaintiff, defendant, prosecution, or defense—so long as the rule’s requirements are satisfied.

### Self-Inculpatory Parts Only (Williamson)

The Supreme Court in Williamson v. United States (1994) drew a sharp line: only the parts of a statement that are self-inculpatory qualify under Rule 804(b)(3). A broader narrative that mixes self-blame with blame-shifting does not come in wholesale. Courts must:

- Parse the statement line by line (or clause by clause).
- Admit only portions that genuinely expose the declarant to liability or financial loss.
- Exclude collateral parts that excuse the declarant or point the finger at someone else.

Expect redactions or limiting instructions to keep the jury focused on admissible content.

### Trustworthiness and Corroboration

When a statement against penal interest is offered in a criminal case, judges look for corroborating circumstances that clearly show the statement is trustworthy. Helpful circumstances can include:

- Spontaneity and timing (e.g., a remark made soon after the event, not crafted for investigators).
- Audience (e.g., a candid comment to a friend or family member vs. a statement to police while seeking a deal).
- Detail and consistency (specific facts, made consistently on multiple occasions).
- Independent matches (physical evidence or other witnesses line up with the statement).
- Lack of motive to lie (no obvious benefit from making the statement).

No single factor controls, but the overall picture must show reliability.

### Unavailability in Practice

Unavailability is not a formality. You must show one of the Rule 804(a) grounds with real proof:

- Privilege: a valid claim (e.g., Fifth Amendment) the court upholds.
- Refusal: the declarant refuses to testify despite a court order.
- Memory: the declarant testifies to a lack of memory on the subject.
- Death/illness: documented medical or death evidence.
- Absence: diligent efforts to secure attendance (subpoena, reasonable travel arrangements) or to obtain testimony by deposition where appropriate.

If the declarant is a party-opponent and available, consider Rule 801(d)(2) instead; it often provides a simpler path.

## Key Examples or Case Studies

Legal examples

- Example 1: Liability admission
  - A property owner tells a neighbor, “I knew the stairs were broken and didn’t fix them, even though people could get hurt.” In a later injury suit, the owner is unavailable. This remark admits negligence and potential civil liability. If unavailability is shown, a court may admit the statement under 804(b)(3).
- Example 2: Financial disclosure
  - A businessman tells a friend, “I owe a huge debt to the mafia, and I’ve been hiding profits from my business to avoid paying taxes.” If the businessman is unavailable and the prosecution provides corroboration, parts of this statement that expose him to criminal or civil liability can be admissible. Post-Williamson, any parts that accuse others without also exposing the declarant may be excluded.

Cases involving declarations against interest

- Chambers v. Mississippi, 410 U.S. 284 (1973)
  - What happened: The defendant sought to introduce multiple confessions by a third party who said he committed the murder. State rules at the time kept those statements out.
  - The Court held: Excluding those reliable, self-inculpatory statements violated the defendant’s right to a fair trial. Chambers does not rewrite Rule 804(b)(3), but it reminds courts that reliable third-party confessions—especially repeated, spontaneous, and corroborated—should not be kept from the jury when due process is at stake.
  - Takeaway: Even if a technical hearsay barrier exists, due process can require admission when reliability is strong and the statement is central to the defense.
- Williamson v. United States, 512 U.S. 594 (1994)
  - What happened: A suspect made a confession that mixed self-inculpatory remarks with blame of others.
  - The Court held: Only the self-inculpatory parts qualify under 804(b)(3). Courts must separate the statement into parts and admit only what truly exposes the declarant to liability.
  - Takeaway: Expect line-by-line scrutiny. Plan for redactions and be ready to justify each portion you want admitted.

## Practical Applications

- Start with unavailability
  - Identify the Rule 804(a) ground and gather proof (e.g., death certificate, medical records, sworn testimony about failed attempts to secure attendance).
- Map the statement
  - Transcribe the statement and mark each clause as self-inculpatory, neutral, or blame-shifting. Only the self-inculpatory parts are eligible under Williamson.
- Build corroboration (criminal cases)
  - Assemble independent support: physical evidence, phone records, surveillance, texts, consistent prior statements, or witness testimony. Explain why the setting of the statement points to honesty rather than convenience.
- Prepare for Confrontation Clause issues
  - If the prosecution offers a testimonial statement (e.g., to police during interrogation) and the declarant is unavailable, the Sixth Amendment may bar its use against a criminal defendant unless there was prior cross-examination. Non-testimonial remarks to friends or family are less likely to raise this issue.
- Consider alternatives if 804(b)(3) is tight
  - Party-opponent statements (FRE 801(d)(2)) if the declarant is the opposing party.
  - Then-existing mental, emotional, or physical condition (FRE 803(3)).
  - Dying declaration (FRE 804(b)(2)).
  - Residual exception (FRE 807) when other routes fail and reliability is strong.
- Handle hearsay within hearsay
  - If the statement contains another person’s out-of-court statement, each layer must fit a hearsay exception (FRE 805).
- Use redactions and limiting instructions
  - Offer a clean version with inadmissible parts removed. Propose an instruction that confines the jury to proper use.
- Anticipate Rule 403 balancing
  - Be ready to explain why the probative value outweighs any unfair prejudice or confusion.
- For opponents
  - Challenge unavailability (e.g., more could have been done to secure the witness).
  - Argue that key lines are not truly against interest or are blame-shifting.
  - Attack trustworthiness (e.g., motive to curry favor, inconsistent details, lack of independent support).
  - Raise Confrontation Clause concerns when applicable.

## Summary Checklist

- Confirm the declarant is unavailable under FRE 804(a).
- Identify the exact self-inculpatory parts; remove blame-shifting portions.
- Show why a reasonable person would not have made the statement unless it was true.
- In criminal cases, provide corroborating circumstances that clearly show trustworthiness.
- Address hearsay within hearsay (FRE 805) and propose redactions.
- Consider 801(d)(2), 803(3), 804(b)(2), or 807 if 804(b)(3) does not fit.
- Prepare for Confrontation Clause and Rule 403 arguments.
- Cite Williamson for parsing and Chambers for due process concerns.

## Quick Reference

| Concept                         | Authority                | Key Point                                                                 |
| ------------------------------- | ------------------------ | ------------------------------------------------------------------------- |
| Unavailability                  | FRE 804(a)               | Privilege, refusal, memory loss, death/illness, or absence with diligence |
| Statement against interest      | FRE 804(b)(3)(A)         | Must be so adverse a reasonable person wouldn’t say it unless true        |
| Corroboration in criminal cases | FRE 804(b)(3)(B)         | Requires circumstances that clearly show trustworthiness                  |
| Self-inculpatory portions only  | Williamson, 512 U.S. 594 | Admit only parts that truly expose the declarant                          |
| Due process safety valve        | Chambers, 410 U.S. 284   | Reliable third-party confessions may need admission for fairness          |

Declaration Against Interest: Rule 804(b)(3) Explained with Cases and Examples