Federal Rules of Evidence – Rule 408 (through March 1, 2020)
Can you ever use compromise negotiation conduct and statements to prove or attack claim validity and value, or to impeach by inconsistency and contradiction?
Only in criminal cases when the negotiations relate to a claim by a public office exercising regulatory or enforcement authority. But you can use compromise negotiation conduct and statements to prove other stuff, like bias or that there was no undue delay.
(a) Prohibited Uses. Evidence of the following is not admissible — on behalf of any party — either to prove or disprove the validity or amount of a disputed claim or to impeach by a prior inconsistent statement or a contradiction:
(1) furnishing, promising, or offering — or accepting, promising to accept, or offering to accept — a valuable consideration in compromising or attempting to compromise the claim; and
(2) conduct or a statement made during compromise negotiations about the claim — except when offered in a criminal case and when the negotiations related to a claim by a public office in the exercise of its regulatory, investigative, or enforcement authority.
(b) Exceptions. The court may admit this evidence for another purpose, such as proving a witness’s bias or prejudice, negating a contention of undue delay, or proving an effort to obstruct a criminal investigation or prosecution.
Selected Committee Notes
As a matter of general agreement, evidence of an offer-to compromise a claim is not receivable in evidence as an admission of, as the case may be, the validity or invalidity of the claim. As with evidence of subsequent remedial measures, dealt with in Rule 407, exclusion may be based on two grounds. (1) The evidence is irrelevant, since the offer may be motivated by a desire for peace rather than from any concession of weakness of position. The validity of this position will vary as the amount of the offer varies in relation to the size of the claim and may also be influenced by other circumstances. (2) a more consistently impressive ground is promotion of the public policy favoring the compromise and settlement of disputes. McCormick §§76, 251. While the rule is ordinarily phrased in terms of offers of compromise, it is apparent that a similar attitude must be taken with respect to completed compromises when offered against a party thereto. This latter situation will not, of course, ordinarily occur except when a party to the present litigation has compromised with a third person.
The same policy underlies the provision of Rule 68 of the Federal Rules of Civil Procedure that evidence of an unaccepted offer of judgment is not admissible except in a proceeding to determine costs.
The practical value of the common law rule has been greatly diminished by its inapplicability to admissions of fact, even though made in the course of compromise negotiations, unless hypothetical, stated to be “without prejudice,” or so connected with the offer as to be inseparable from it. McCormick §251, pp. 540–541. An inevitable effect is to inhibit freedom of communication with respect to compromise, even among lawyers. Another effect is the generation of controversy over whether a given statement falls within or without the protected area. These considerations account for the expansion of the rule herewith to include evidence of conduct or statements made in compromise negotiations, as well as the offer or completed compromise itself. For similar provisions see California Evidence Code §§1152, 1154.
The policy considerations which underlie the rule do not come into play when the effort is to induce a creditor to settle an admittedly due amount for a lessor sum. McCormick §251, p. 540. Hence the rule requires that the claim be disputed as to either validity or amount.
The final sentence of the rule serves to point out some limitations upon its applicability. Since the rule excludes only when the purpose is proving the validity or invalidity of the claim or its amount, an offer for another purpose is not within the rule. The illustrative situations mentioned in the rule are supported by the authorities. As to proving bias or prejudice of a witness, see Annot., 161 A.L.R. 395, contra, Fenberg v. Rosenthal, 348 Ill. App. 510, 109 N.E.2d 402 (1952), and negativing a contention of lack of due diligence in presenting a claim, 4 Wigmore §1061. An effort to “buy off” the prosecution or a prosecuting witness in a criminal case is not within the policy of the rule of exclusion. McCormick §251, p. 542.
For other rules of similar import, see Uniform Rules 52 and 53; California Evidence Code §1152, 1154; Kansas Code of Civil Procedure §§60–452, 60–453; New Jersey Evidence Rules 52 and 53.