Solitary confinement is a punishment or special form of imprisonment in which a prisoner is denied contact with any other persons, excluding members of prison staff. It is considered by some as a form of psychological torture. It is usually cited as an additional measure of protection (of society) from the criminal. It is also used as a form of protective custody.
Solitary confinement is colloquially referred to in American English as the ‘hole’, ‘lockdown’, the ‘SHU’ (pronounced ‘shoe’) or the ‘pound’, and in British English as the ‘block’ or the ‘cooler’
This is a kind of imprisonment which secludes the prisoner from any intercourse or sight of, and communication with other prisoners. it may be accompanied with or without labour.
Section 73 of pakistan penal code provides that whenever any person is convicted of an offence for which under the code the court has power to sentence him to rigorous imprisonment , the court may by its sentence , order that the offender shall be kept in solitary confinement for any portion or portions of the imprisonment to which he is sntenced, not exceeding three months in the whole.