Unlawful for employer to discharge employee under certain conditions.
Section 21
SEC. 21. Unlawful for employer to discharge employee under certain conditions.—It shall be unlawful for any employer to discharge or to threaten to discharge, or in any other manner discriminate against, any laborer or employee because such person has testified or is about to testify, or because such employer believes that he may testify in any investigation, proceeding or public hearing conducted by the Court or any board of inquiry.