Courts won’t hear it: Don’t try piling on after-the-fact reasons for termination

Sometimes, after an employee has been discharged, a supervisor will discover that the employee broke additional rules. But even if what you discover would be enough to have justified discharge on its own, chances are a court won’t let you use the information in your defense. After-acquired evidence isn’t admissible to show you would have fired the employee for reasons other than the one you used.