Under the Guardianship and Administration Act 1993 (SA), SACAT can direct the Public Advocate to undertake investigations and give a written report to the Tribunal on the affairs of a person subject to an application before the Tribunal or a person who has had an advance care directive revoked by the Tribunal under the Advance Care Directives Act 2013 [Guardianship and Administration Act 1993 (SA) s 28(1)]. In complex or difficult cases this independent report from the Public Advocate is sometimes necessary in order to ensure that the Tribunal has all relevant information necessary to make the most appropriate decision. In particular such reports should ensure that the wishes and preferences of a person with a mental incapacity are made known to the Tribunal.