| Department of Prisons | |
| Native Name A: | Sinhala; Sinhalese: බන්ධනාගාර දෙපාර්තමේන්තුව |
| Seal: | File:Department of Prisons SL seal.png |
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| Jurisdiction: | Government of Sri Lanka |
| Headquarters: | Prison Headquarters, 150 Baseline road, Colombo 9 |
| Coordinates: | 6.9215°N 79.8781°W |
| Motto: | Custody, Care, Corrections |
| Employees: | 6126 (2016)[1] |
| Budget: | Rs 8.6 billion (2016) |
| Minister1 Name: | Lohan Ratwatte |
| Minister1 Pfo: | Minister of Prison Reforms, Rehabilitation |
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| Deputyminister8 Name: | --> |
| Chief1 Name: | Thushara Upuldeniya |
| Chief1 Position: | Commissioner-General of Prisons |
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| Parent Department: | Ministry of Prison Reforms, Rehabilitation, Resettlement and Hindu Religious Affairs |
| Child25 Agency: | --> |
| Keydocument1: | Prisons Ordinance, No. 16 of 1877 |
The Department of Prisons (Sinhala: බන්ධනාගාර දෙපාර්තමේන්තුව Bandhanagara Departhamenthuwa) is a department of the Government of Sri Lanka responsible for the incarceration and rehabilitation of convicted criminal offenders and terror suspects, coming under the purview of the Minister of Prison Reforms, Rehabilitation, Resettlement and Hindu Religious Affairs. The Commissioner-General of Prisons reports to the Subject Minister, who is in turn responsible to the Parliament of Sri Lanka.
The current Commissioner-General of Prisons is Thushara Upuldeniya.
The new prisons system that evolved in Britain was introduced to the British colonies during 1844. The Department of Prisons came into existence first affiliated to the Police Dept. under the then Inspector General of Police Sir George William Robert Campbell under the Act no.18 of 1844. The supervision and control of all prisons in the Island were vested in Inspector General of Prisons. From its inceptions the office of Inspector General of Prisons was held by the Inspector General of Police until 1905 when they separated. Major Albert De Wilton who till then held both offices was appointed Inspector General of Prisons and he was also appointed to be the Superintendent of the Prisons at Welikada, Mutwal and Hultsdorf. In 1922 the penal colony of the Andaman Islands were closed down and 62 life convicts sent back to Ceylon. In 1944 a probation system was introduced as a branch of the Prison Department. In 2022, the Sri Lanka Prisons Emergency Action and Tactical Force was formed under the Prison Department to provide specialist security and riot control within the prison system.
The Department of Prisons is tasked with ensuring that custodial sentences (imprisonment) and non-custodial sentences and orders (home detention, supervision, community work and release on conditions) imposed by Sri Lankan Courts are administered in a safe, secure, humane and effective way. The Department aims to contribute to the maintenance of a safe and just society by reducing the level of re-offending through the delivery of targeted and appropriate programmes to help offender's rehabilitation and reintegration to society.The Department is also responsible for the transportation of prisoners within the country with the assistance of the Sri Lanka Police.
Department of prisons officers, jailers, sergeant and guards wear a khaki uniform similar to that of police officers with the exception of their use of a khaki peak cap.