When recovery is had in any suit or proceeding against an officer, agent, or employee of the department for any act done by that person or for the recovery of any money exacted by or paid to that person and by that person paid over to the department, in the performance of the person's 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.
[ 1986 c 9 § 23.]