Final answer:
Both the investigated person and the Complaints Director generally have the right to appeal the decision of a hearing tribunal in many legal systems. They may seek a review from a higher authority if they are dissatisfied with the outcome.
Step-by-step explanation:
The right to appeal the decision of a hearing tribunal typically varies depending on the specific rules and regulations of the jurisdiction or the administrative body involved. However, in many legal systems, both the investigated person and the Complaints Director have the right to appeal a decision. This means that if either party is dissatisfied with the outcome of the tribunal's decision, they may seek a review or reconsideration from a higher authority or court. It's important to note that the specifics can differ, and it's always advisable to consult the actual rules of the tribunal or the regulatory body that conducted the hearing for precise information.