The Ombudsman adopts a variety of methods to handle complaints. The basic form is inquiry, referring to the practice that requires the organisation to offer a response for examination and giving suggestion thereafter. When serious or further problems were observed, a full investigation follows. It applies when the complaint involves issues of principle, systemic flaws or serious maladministration. An full investigation will be conducted with prior notice to the head of the department concerned. In cases of minor maladministration, with the consent of the complainant and the organisation concerned, investigators trained in mediation will serve as impartial mediators to settle the conflict.