This paper describes an agent system to demonstrate the practically of the INCA (Intelligent Community Support for the Elderly) architecture. This architecture is intended to integrate a number of autonomous systems; home monitoring, community alarms, care management systems and emergency systems command and control systems using agent technology to build effective coordinated care systems. A range of different autonomous bodies provides such care, many of which have their own management information systems already in place. Since these systems do not only contain information relevant to community care, but also all the other activities of the agent, that it would be unwilling to make available to other parties, the actual management of community care has remained primarily outside the role of current systems. The current demonstrator has been built using ZEUS agent-building toolkit (Nwana et al (1999)) as the basis for the development of a 'bench-top' demonstrator to show that the INCA architecture is both scalable to realistic activity levels and integrates fully and effectively with existing computer systems in the various agencies involved, without loss of autonomy and security.