You must prove your termination was illegal. You may have additional rights against termination or retaliation under a collective bargaining agreement, in your employer's policies, or under federal law.If you believe you've experienced wrongful termination, consider filing a claim with the Equal Employment Opportunity Commission (EEOC). Learn if you've been fired illegally, whether you're protected under Washington and federal labor laws, and what you can do about it. In this guide, we'll discuss how to file a lawsuit for termination, the critical stages involved, and what to anticipate during the legal process. Most federal employees are not atwill employees. See 5 USC § 1201-1222 for ways to protest termination of federal employees. To start a lawsuit in federal court, you must file a paper with the Court called a complaint.