Question to the Ministry of Justice:

To ask the Secretary of State for Justice, how much has been spent on incarcerating the perpetrators of (a) acid attacks, (b) knife attacks and (c) violent crimes; in each year since 2010.

Her Majesty’s Prisons and Probation Service (HMPPS), formerly known as the National Offender Management Service, does not calculate separately the costs of incarcerating perpetrators of acid attacks, knife attacks and violent crimes. The information recorded on the HMPPS central accounting system does not allow the identification of such costs.

An average cost per prisoner, costs per prison place and overall prison unit costs for each private and public sector prison in England and Wales are routinely published by HMPPS. This information is produced on an annual basis and is published after the end of each financial year.

Information on prison expenditure can be accessed in the Prison and Probation Performance Statistics pages for each financial year on the www.gov.uk website. Prison unit costs can be found within the Excel document Costs per prison place and cost per prisoner by individual prison establishment in the ‘Cost by Establishment’ tab.

The most recent published figures for financial year 2016-17 can be accessed on the www.gov.uk website from the following link:

https://www.gov.uk/government/statistic s/prison-performance-statistics-2016-to-2017