Prisoners who have committed serious violations of prison discipline.

In this he urged that prison discipline should be made reformatory as well as penal.

Here he wrote a report strongly critical of the state of prison discipline.

The rules governing prison discipline had became very severe of late.

He became a reformer regarding education, the arts, prison discipline, world peace, and anti-slavery.

It is used principally as a means of prison discipline.

Its job is to leave Yomonul free to carry out his military duties, but otherwise to impose prison discipline on him.

Still, there are some highly dangerous and violent prisoners who pose a serious challenge to prison discipline and safety.

H. then went on to cite an 1847 New York law which limited prison discipline to individual confinement "upon a short allowance."

In 1871-72 he organized in London the first international congress on prison discipline.