When a mentally disordered person is lost, the first thing to consider is to call the police and think about the patient’s likely route of movement and search by asking neighbouring residents and looking for cameras. In addition, family members should consider putting the patient’s information and family contact details on a card or slip of paper in the patient’s coat pocket to make it easier for the finder to contact the family, and there is also smart hardware available to allow family members to locate the patient. It is also important that family members accompany the patient when he or she goes out.