If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email email@example.com.
Please tell us what format you need. It will help us if you say what assistive technology you use.
Michael Spurr, chief executive of NOMS has written to Frances Crook, chief executive of the Howard League, to highlight inaccuracies in her comments on Newsnight and subsequently on social media.