Because no corporate investigation has to meet the same standard as a court of law. You can fire someone if you think they did something wrong. But when you mak

Because no corporate investigation has to meet the same standard as a court of law. You can fire someone if you think they did something wrong. But when you make statements, it's possible the employee will claim it is libel and you will suddenly need to prove their misconduct at a higher standard in a court of law. IANAL, but basically it's not worth it. The company already has what they want: Not working with that employee. Anything past that is unnecessary risk.