SDCL § 60-12-21: Employer prohibited from threatening employee to prevent enforcement of discrimination provisions.

No employer may, for the purpose of dissuading an employee from preferring charges or giving information against the employer or testifying against the employer in an action brought under § 60-12-18, threaten termination of the employ of the employee or other retaliatory action, or terminate the employ of the employee or take other retaliatory action.