13 Accepted in Part

Quarterly auditing of Rule 40 and Rule 42 use

Brook House Inquiry · The Brook House Inquiry Report · Issued 19 September 2023 · Addressed to: Home Office

Source — verbatim from the inquiry

Inquiry recommendation

The Home Office must regularly (and at least quarterly) audit the use of Rule 40 and Rule 42 across the immigration detention estate, in order to identify trends, any training needs and required improvements. In addition, HM Inspectorate of Prisons and the National Chair and Management Board of Independent Monitoring Boards must review processes to consider how they fulfil their oversight role in respect of Rule 40 and Rule 42, and report on the monitoring of the use of Rules 40 and 42 going forward.

Brook House Inquiry, The Brook House Inquiry Report · 19 Sep 2023 Source PDF →

Published evidence summary

Publicly available evidence relating to this recommendation:

- In March 2024, the Home Office committed to compliance auditing across the detention estate as part of the DSO revision, noting this recommendation was also directed at HMIP and the IMB National Management Board (Government Response to the Brook House Inquiry, Home Office, March 2024).
- DSO 2/2017 v5.0, published November 2025, requires daily multidisciplinary team reviews and documentation of each removal from association via prescribed forms (Detention Services Order 02/2017 v5.0, Home Office, November 2025).
- No independent published audit confirming quarterly estate-wide auditing of Rule 40/42 use has been identified to March 2026.

Response — verbatim from government

Home Office

The DSO revision includes compliance auditing across the detention estate. This recommendation was also directed at HMIP and the IMB Management Board.

Home Office · 19 Mar 2024 Written response →

Evidence trail — what's actually happened since

  • 14 Jan 2025 Angela Eagle, Written PQ 23170 (15 January 2025): 'On track for closure by summer 2025.' Source →
  • 19 Sep 2024 · Brook House Inquiry Chair Inquiry Chair Kate Eves described government response as "inadequate" and called for a "reset" with the new government. Warned abuse "becomes a question of when, not if" it happens again. Insufficient Progress

Each entry above links to a primary source — gov.uk written statement, consultation response document, or inspection report. The Index does not characterise government intent; it tracks what has been published.

How this page is built

Source and Response are verbatim from primary documents. The Evidence trail records published activity since — written statements, consultation outcomes, inspection findings, parliamentary references. The Index does not paraphrase or characterise intent; it tracks what has been published. Where the evidence is the absence of action (a missed deadline, a slipped timetable), that absence is documented from primary sources rather than inferred.

This recommendation's data is verified periodically against primary sources. The Index is monitored for staleness weekly.