The only thing that can protect employers from discrimination lawsuits is the practicing of equal opportunity. You cant, as an employer, treat one person better or worse than another and not expect to face consequences. Employees talk to each other and they know the everyday happenings at the company. Nothing is hidden. By being partial to some employees, you may be bringing discrimination lawsuits upon yourself. The result is bad publicity for your company and this detracts possible investors.
Employees feel they are facing discrimination in the workplace when an employer or supervisor treats them differently from a fellow worker based on their color, sex, physical attributes, and religion. Equal employment opportunity laws protect employees from discrimination in the workplace. The violation of this law means that an employee has the right to seek back pay, reassignment of their job if they were fired or demoted due to discrimination, financial retribution from the company by filing a law suit against them and a court order blocking any more discriminatory actions from the company.
Something most employers and employees should be aware of is statute of limitations for discrimination claims and sexual harassment claims. Employee has 180 days to file a discrimination claim and 90 days to file a claim for sexual harassment after equal employment opportunity commission issues permission.