Missouri Revised Statutes Title XVIII. Labor and Industrial Relations § 290.609. Prohibited employer acts--rights of employees

1. It shall be unlawful for an employer or any other person to interfere with, restrain, or deny the exercise of, or the attempt to exercise, any right protected under sections 290.600 through 290.642.

2. An employer shall not take retaliatory personnel action or discriminate against an employee or former employee because the individual has exercised rights protected under sections 290.600 through 290.642. Such rights include, but are not limited to, the right to request or use earned paid sick time pursuant to sections 290.600 through 290.642; the right to file a complaint or inform any person about any employer's alleged violation of sections 290.600 through 290.642; the right to participate in any investigation, hearing, or proceeding or cooperate with or assist the Department in any investigations of alleged violations of sections 290.600 through 290.642; and the right to inform any person of his or her potential rights under sections 290.600 through 290.642.

3. It shall be unlawful for an employer's absence control policy to count earned paid sick time taken under sections 290.600 through 290.642 as an absence that may lead to or result in discipline, discharge, demotion, suspension, or any other adverse action.

4. Protections of this section shall apply to any individual who mistakenly but in good faith alleges violations of sections 290.600 through 290.642.