delivered the opinion of the court:
The question in this appeal is whether a defendant acquitted by reason of insanity and thereafter committed to the Department of Mental Hеalth and Developmental Disabilities (the Department) under an indeterminate sentence is entitled to deduction of compensatory good-time credits under administrative regulations, in addition to statutory good time, in determining the maximum term for which the defendant may be committed. The circuit court of Kankakee County and the appellate court held that Shirley Tanzy, the defendant here, was not entitled to the additional award оf compensatory good-time credit (
On November 15, 1977, the State’s Attоrney of Kankakee County filed an information charging Shirley Tanzy with attempted murder (Ill. Rev. Stat. 1977, ch. 38, pars. 8 — 4(a), 9 — 1(a)(1)) and cruelty to a child (Ill. Rev. Stat. 1977, ch. 23, pаr. 2368). Following a bench trial on March 8, 1978, the circuit court found the defendant not guilty by reason of insanity. She was committed to the Department pursuant tо statute for an initial period not to exceed 12 months. Ill. Rev. Stat. 1977, ch. 38, par. 1005-2-4.
On September 2, 1981, a hearing was conducted to determine the maximum рeriod for which the defendant could be committed. (See People v. Thiem (1980),
The appellate court conсluded that the maximum period of commitment could not exceed 15 years under either election. This was determined by calculating the amount of statutory good time to which the defendant was entitled. The appellate court, however, held that compensatory good-time crеdit under the administrative regulations could not be credited, stating that compensatory good-time credit is to be administered only by the Departmеnt of Corrections and is to be based upon an inmate’s conduct while in a prison. The court held that in the case of a commitment for insanity the committed person would not be entitled to compensatory good-time credit.
Too, the appellate court held that the errоr of the trial court in determining that the defendant’s maximum term of commitment was for life was not prejudicial. When statutory good time is calculated, thе court noted, the life term could have been reduced to 15 years also.
The appellate court erred in holding that the defendant could not be eligible for compensatory good-time credits because she was not committed to a prison.
The court stated:
“The fact that a defendant sentenced to prison may be eligible for compensatory good-time credits to further reduce a sentence is a factor which a trial judge cannot take into consideration in this type of insanity commitment. Compensatory good time is administered by the Department of Corrеctions and is based on the inmate’s conduct while in prison. If a prisoner performs meritorious service while in prison, reduction in prison time cаn accrue; otherwise, no reduction is possible. Consequently, the proper calculation of such credits, if any, is left to the Department of Corrections. In the case of an insanity commitment, we do not believe the defendant is entitled to such credits. Mrs. Tanzy is not imprisoned.”108 Ill. App. 3d 59 , 62.
The cоurt, however, did not consider Hampton v. Rowe (1980),
That holding was followed by the court in In re Commitment of Coppersmith (1982),
The legislature has provided that, in the case оf a defendant acquitted of a felony by reason of insanity, the commitment shall not exceed the maximum length of time the defendant would have been required to serve, less credit for good behavior. To hold that only imprisoned persons would be eligible for compensatory good-time credit would penalize insane persons of this class and unreasonably favor those who had been convicted.
For the reasons given, thаt portion of the judgment of the appellate court reversing the judgment of the circuit court is affirmed; the portion of the judgment fixing the term of thе defendant’s commitment is vacated. The judgment of the circuit court of Kankakee County is reversed, and the cause is remanded to that court for further proceedings consistent with this opinion.
Appellate court affirmed in part and vacated in part; circuit court reversed; cause remanded.
