(a) Except as provided in Code Section 9-11-68, evidence of:
(1) Furnishing, offering, or promising to furnish; or
(2) Accepting, offering, or promising to accept
a valuable consideration in compromising or attempting to compromise a claim which was disputed as to either validity or amount shall not be admissible to prove liability for or invalidity of any claim or its
amount.
(b) Evidence of conduct or statements made in compromise negotiations or mediation shall not be admissible.
(c) This Code section shall not require the exclusion of any evidence otherwise discoverable merely because it is presented in the course of compromise negotiations or mediation. This Code section shall not
require exclusion of evidence offered for another purpose, including, but not limited to, proving bias or prejudice of a witness, negating a
contention of undue delay or abuse of process, or proving an effort to
obstruct a criminal investigation or prosecution.