19 Del. C. § 726: Retaliation prohibited.

It shall be an unlawful employment practice for any employer to discharge, refuse to hire or otherwise discriminate against any person or applicant for employment, or any employment agency to discriminate against any person or any labor organization to discriminate against any member or applicant for membership because such person has opposed any practice prohibited by this subchapter or because such person has testified, assisted or participated in any manner in proceedings to enforce the provisions of this subchapter.