Question to the Ministry of Justice:

To ask the Secretary of State for Justice, how many prison cells housing the (a) general prison population and (b) segregation population do not allow direct access to (i) artificial lighting sufficient for reading and (ii) natural light.

The Certified Prisoner Accommodation framework outlines the minimum requirements for prison accommodation, including that electric lighting must be installed and functional, and there must be natural light.

All accommodation in the prison estate is required to be certified by a senior operational manager as meeting this standard before it can be used to hold prisoners overnight.