This article discusses the emergence, structure, and purpose of the mental health court. It details the therapeutic aspects of the mental health court and its function as a specialized-treatment court serving persons with serious mental illnesses in the criminal justice system. Guiding themes, such as the criminalization of mental illness, therapeutic jurisprudence, and drug-treatment courts are described. It also identifies key legislation that contributed to the funding and proliferation of mental health courts. The effectiveness of mental health court, along with current criticisms regarding its impact on participants’ mental health and recidivism outcomes, are also covered. Last, social work values and the various roles of social workers in the mental health court are highlighted to demonstrate the relevance of mental health court to contemporary social work practice and intervention.