Wrongful termination laws are those, which determine whether a particular employee was laid off or fired for legally valid reasons. While there are no federal "wrongful termination" laws, violation of any number of existing laws might nonetheless constitute "wrongful termination." For instance, if a company, in terminating employee/employees discriminates, violates an employment contract, is in breach of the covenant of good faith and fair dealing, or otherwise infringes upon a workers' civil liberties, a former employee might win a wrongful termination lawsuit. For this reason, legal experts urge both companies and employees to keep documented records of their times of employment, and any possible violation of rights. This is typically done through employee evaluations, and potential harassment claims filed by workers. Employers are likewise advised to consult with their human resources department to ensure that the reasons for a particular firing or lay-off are well documented, and thus not susceptible to a lawsuit.