(1) Placement in a psychiatric hospital with ordinary supervision may be imposed by the court in the case of a mentally ill person who, due to his mental state and the nature of the harmful act committed, requires hospital care and treatment under ordinary supervision.

(2) Placement in a strictly supervised psychiatric hospital may be imposed by the court on a mentally ill person who, due to his mental state and the nature of the harmful act committed, constitutes a special danger to society and requires hospital care and treatment under strict supervision.

(3) Persons committed to psychiatric institutions with strict supervision shall be detained under conditions that exclude the possibility of their committing a new criminal offence.