The Borstal is an English reformatory system designed for youths between 16 and 21, named after an old prison near Rochester, Kent. The system was introduced in 1902 but developed by Sir Alexander Paterson, who became a prison commissioner in 1922. Each institution consisted of houses containing about 50 young offenders, with a housemaster or housemistress and staff. Training is tough, based on a full day's hard work. There are vocational-training courses, with six hours a week of evening education either in the Borstal or in technical colleges.
The period of trainings, governed by the progress of the inmate through a grade system, averages about 15 months.