This paper establishes the value of a social work investigation of good practice with people on Community Treatment Orders in the context of social work s longstanding interest in the ethical challenges of working with involuntary clients. The emancipatory values of social work were used to guide this research, thereby ensuring the participation of consumers and their families or carers. Critical social work theory provided an important theoretical base. A mixed methods approach was undertaken, including a cluster analysis and case studies. Five principles of good social work practice emerged from the qualitative data: (a) use and develop direct practice skills; (b) take a human rights perspective; (c) focus on goals and desired outcomes; (d) aim for quality of service delivery; and, (e) enhance and enable the role of key stakeholders. These principles are briefly presented along with recommendations for practice and service development.