The groups to be assessed are communities, families, adults and children. workers are a special group which needs assessment and help (see Section 7). Other secondary victims, such as family members outside the disaster area, nearby communities, media reporters, body handlers, hospitals to which the injured are transferred, should be remembered and assessed. Social system levels merge and overlap and assessments within particular social groups use information from other social groups. For instance, individuals and families give information about communities and vice versa and adults give information about children and vice versa. Although these guidelines refer only to the Australian context, the same principles of preparedness and response apply when helping in disasters internationally.