1. 1. An employer shall not discharge, demote, suspend, threaten, harass, or otherwise discriminate against an employee in the terms and conditions of employment because the employee initiates, assists in, or participates in a proceeding or court action under sections 191.900 to 191.910. Such prohibition shall not apply to an employment action against an employee who:

   1. (1) The court finds brought a frivolous or clearly vexatious claim;
   2. (2) The court finds to have planned, initiated, or participated in the conduct upon which the action is brought; or
   3. (3) Is convicted of criminal conduct arising from a violation of sections 191.900 to 191.910.

2. 2. An employer who violates this section is liable to the employee for all of the following:

   1. (1) Reinstatement to the employee's position without loss of seniority;
   2. (2) Two times the amount of lost back pay;
   3. (3) Interest on the back pay at the rate of one percent over the prime rate.

(L. 2007 S.B. 577)