From experience with the uk's system You do have to follow the rules of natural justice custom and practice and case law in your country. You have to be told

From experience with the uk's system You do have to follow the rules of natural justice custom and practice and case law in your country. You have to be told what you are being accused of in advance. You have to have a formal hearing with the right to be accompanied by a "friend" to put your case. There has to be an valid appeals process. Fail these and the employer will automatically loose