The maximum period for which a person sentenced to borstal training after the commencement of this section may be detained in pursuance of section 33(2) of the Prisons (Scotland) Act 1952 shall be two years instead of three years.

The period for which a person sentenced to borstal training after the commencement of this section is to be under supervision under section 33(3) of the said Act after his release from a borstal institution shall, subject to any order of the Secretary of State under that subsection, be a period of one year beginning with the date of his release (instead of a period of three years from the date of sentence or of one year from the date of release, whichever period expires earlier).

Where in pursuance of section 33(4) of the said Act an order is made for the recall of a person sentenced to borstal training after the commencement of this section and subsequently released, the maximum period for which he shall be liable to be detained following recall shall be three months instead of one year.