Final answer:
The ability of a Complaints Director to act only on written complaints depends on the legal jurisdiction and specific regulations of the governing professional body. Written complaints help to provide clear and detailed documentation for investigation. Yet, some jurisdictions might allow for action based on other forms of communication.
Step-by-step explanation:
Whether a Complaints Director can only act on a written complaint is contingent on the specific legal jurisdiction and the rules governing professional conduct within that area. In many cases, regulatory bodies overseeing different professionals may have provisions that require complaints to be submitted in writing. This helps to ensure that the complaint is documented, clear, and provides sufficient detail for the Complaints Director to act upon. However, there can also be circumstances or jurisdictions where a complaints director can initiate an investigation based on verbal complaints or other forms of communication. It's thus important to consult the specific regulations of the professional body or jurisdiction in question.