Limiting Term
60 As I have already observed, pursuant to s 23(1) of the Mental Health (Criminal Procedure) Act 1990, my task is to determine whether, if the special hearing had been a normal criminal trial and the accused had been fit to be tried, and had been found guilty, the Court would have imposed a sentence of imprisonment, and if so, to nominate a limiting term, being "the best estimate of the sentence that would have been considered appropriate".
61 Clearly the answer to the first of those questions, as appears from the foregoing reasons, is in the affirmative.
62 On any view, the objective circumstances of this brutal and predatory killing were very serious and were such as would inevitably require the imposition of a substantial term of imprisonment had this been a normal trial, even allowing for the intellectual impairment from which the defendant suffers, and for the circumstance that his self-control was probably inhibited, to a degree, by the effects of the alcohol, which he had consumed this night.
63 As to the second question, it was held in R v Mitchell (1999) 108 A Crim R 85 that the limiting term was to be an estimate of the total sentence, rather than of the non parole period or minimum term. The sentencing law that would have applied to a normal trial, in that instance, was that embodied in the Sentencing Act 1989, which called for the Court to firstly set a minimum term, which the prisoner must serve, and an additional term during which the prisoner might be released on parole, being a term which could not exceed one-third of the minimum term, unless special circumstances were found. Section 5 of that Act provided:
"(4) The minimum and additional terms set for an offence together comprise, for the purposes of any law, the term of the sentence of the Court for the offence."
64 As the Court noted (at para 29):
"Whether or not the person is released at the end of the minimum term depends on a consideration of the matters specified by s 17 of the Sentencing Act . Those factors include giving primacy to the public interest, having regard to the prisoners' behaviour during the minimum term and having regard to whether the prisoner, if released, would be able to adapt to normal community life."
65 The Court continued:
"The additional term specifies the period beyond which the person can no longer be detained or otherwise subjected to penal supervision."
66 By contrast it noted that a limiting term under the Mental Health (Criminal Procedure) Act is:
"The period beyond which a person cannot be detained for the offence which was the subject of the special hearing."
67 In rejecting the appellant's submission that the limiting term under s 23 of the Mental Health (Criminal Procedure) Act should be an estimate of the minimum term, and not of the whole sentence comprising the minimum and additional term, the Court said at para 32:
"Section 23 requires a comparative estimate of "the sentence" considered appropriate if the person had been found guilty after a normal trial. " The sentence" is expressly defined in s 5(4) to be the totality of the minimum and additional term. The "minimum term" is, by the terms of s 5(1)(a), a specified part or term of "the sentence" which is imposed under the section. The purpose in the comparative exercise required by section 23 is to ensure that a limiting term under the Act is neither more harsh nor more lenient than a total sentence would have been in a case of a person fit to plead. Thereafter the operation of the two Acts diverge to take account of the different circumstances with which they deal. In the case of the Sentencing Act , the concern is with the person's fitness for parole after having served the minimum term. Under the Act the concern is with the person's mental state from time to time. A person dealt with under the Act is subject to at least six monthly reviews by the Tribunal throughout the course of the limiting term, and may be released prior to the expiry of the limiting term. The fact that a person may be detained for the whole of the limiting period does not involve any unfairness. Rather, the two different schemes give recognition to the differing purposes of the two Acts."
68 As the Court had earlier noted (paras 15 to 17) the fixing of a limiting term under the Mental Health (Criminal Procedure) Act does not mean that the offender must be detained for the entirety of that term. Once a limiting term is fixed, the defendant becomes subject to the review procedure established by the Mental Health Act, and is subject as a forensic patient to the jurisdiction of the Mental Health Review Tribunal. The Tribunal is required to conduct reviews of such patients, at least once every six months, and may make recommendations as to their continued detention, care or treatment, their fitness to be tried and their release (s 82). At the end of the limiting term, their release from custody as a forensic patient is automatic. That is, unless he or she is determined to be mentally ill and such that no care of a less restrictive kind is appropriate and reasonably available. In such case the future detention is as a "continued treatment patient" (s 89). Otherwise, depending upon the Tribunal's finding, a person dealt with under the Act (subject to the provisions of ss 83 to 84) may be released prior to the expiry of the limiting term.
69 The decision in Mitchell also stands as authority for the following propositions: