Wash. Rev. Code § 7.07.050
(1) There is no privilege under RCW 7.07.030 for a mediation communication that is:
(2) There is no privilege under RCW 7.07.030 if a court finds, after a hearing in camera, that the party seeking discovery or the proponent of the evidence has shown that the evidence is not otherwise available, that there is a need for the evidence that substantially outweighs the interest in protecting confidentiality, and that the mediation communication is sought or offered in:
[ 2006 c 209 s 1; 2005 c 172 s 6.]