Question to the Ministry of Justice:

To ask the Secretary of State for Justice, how many incidents of (a) violence and (b) disturbance there has been in each prison since the implementation of the smoking ban.

The information requested in 149636 could only be obtained at disproportionate cost as the implementation of smoke-free prisons was rolled out at different times.

An analysis was carried out earlier this year on the impact of the tobacco ban on Prison Safety and Security. There is no conclusive evidence of an increase in violence in prisons attributable to the tobacco ban. No additional security measures have been implemented in any prison following the implementation of the tobacco ban.