Fed. R. Evid. 408

Compromise Offers and Negotiations

(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.

( Pub. L. 93–595, § 1 , Jan. 2, 1975 , 88 Stat. 1933 ; Apr. 12, 2006 , eff. Dec. 1, 2006 ; Apr. 26, 2011 , eff. Dec. 1, 2011 .)