Court-ordered treatment for serious offenders with mental illness.

The insanity defence was elaborated upon through case authority which paralleled the development of phenomenology and treatment of serious mental illnesses, particularly psychotic disorders. In 1843, the rules in McNaughton's Case established a clear formulation for determining whether a person with a mental illness may be held to have been not criminally responsible at the time of an offence. The current legislative scheme in Queensland incorporates the most modern application of the defence of insanity and diminished responsibility and provides the most efficient mechanism by which mentally ill offenders are diverted into care and treatment.