Rule 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.

(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.