Wash. Rev. Code § 82.32.310
When recovery is had in any suit or proceeding against an officer, agent, or employee of the department of revenue for any act done by him or her or for the recovery of any money exacted by or paid to him or her and by him or her paid over to the department, in the performance of his or her official duty, and the court certifies that there was probable cause for the act done by such officer, agent, or employee, or that he or she acted under the direction of the department or an officer thereof, no execution shall issue against such officer, agent, or employee, but the amount so recovered shall, upon final judgment, be paid by the department as an expense of operation.
RCW 82.32.310
Construction-Severability-1975 1st ex.s. c 278: See notes following RCW 11.08.160.