Performance evaluation is one of the most powerful defenses for employers against wrongful termination charges. Supervisors should give candid and truthful performance appraisals in a timely, consistent, and thorough manner—and keep accurate records. Charitable or neutral evaluations that don’t communicate important performance issues with employees can weaken the defense against unfair dismissal claims. For example, if a manager consistently gives a 3 out of 5 rating to an employee who actually has performance problems, then terminates the employee later, the company opens itself up to a wrongful termination charge.