The expression 'mental illness within the meaning of the civil law of the State or Territory' in s 20BQ(1)(a) of the Crimes Act 1914 (Cth) is not limited to the definition of mental illness in civil commitment legislation (such as s 4 of the Mental Health Act 2007 (NSW)), but refers to mental illness as understood in State or Territory civil law generally, as distinguished from criminal law concepts of mental illness.
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