Is it true that department trial is usually on instituted when the misconduct of the employee is serious enough to warrant such a trial ?

Yes, it is generally true that a departmental trial is usually instituted when the misconduct of an employee is serious enough to warrant such a trial. Departmental trials are typically reserved for cases of serious misconduct, such as violations of company policies or procedures, unethical behavior, or criminal activity. These trials are conducted to determine the facts of the case, assess the employee's actions, and determine appropriate disciplinary action.