Public Inquiry
Manchester Arena Inquiry
Status: Completed
Chair: Sir John Saunders
Established: Sep 2020
Report: Mar 2023
Commissioned by: Home Office
Public inquiry into the terrorist attack at Manchester Arena on 22 May 2017, which killed 22 people and injured over 1,000 others.
Response breakdown
Evidence & impact
The Manchester Arena Inquiry was established following the terrorist attack at Manchester Arena on 22 May 2017 that killed 22 people. Sir John Saunders published the final report on 2 March 2023, making 169 recommendations across emergency response, security arrangements, and public safety.
The government accepted 164 recommendations (97%) and accepted 5 in principle (3%). Home Secretary Suella Braverman stated in Parliament on 6 March 2023 that the government would 'carefully consider the report's findings and recommendations in full' and committed to ensuring lessons were learned. A recommendations tracking dashboard was subsequently published.
Progress updates from February 2026 indicate that 78 recommendations (46%) are recorded as completed and 91 (54%) remain in progress. Key developments documented include the publication of Joint Operating Principles Version 3 for responding to terrorist attacks, establishment of a new multi-agency radio control system, and introduction of the Ten Second Triage system for major incidents.
Several working groups and programmes have been established, including the Clinical Response to Major Incidents group and the Stronger Local Resilience Forum trailblazer programme. The Security Industry Authority has worked with the Health and Safety Executive to develop enhanced first aid training incorporating the inquiry's recommendations.
However, multiple recommendations show limited documented progress nearly three years after publication. Several relating to legislative changes, including extending Security Industry Authority licensing and reforms to the Inquiries Act 2005, remain under consideration. The development of a healthcare standard for events, while noted as progressing with research projects complete, is not due for publication until 2026. The Clinical Response to Major Incidents group has revised its timeline to 2027 due to resource constraints.
The Ministry of Justice has stated there are no current plans to increase maximum sentences under the Inquiries Act, despite this being recommended. Various guidance documents and approved professional practices are noted as being developed but have not yet been published according to the available evidence.
The government accepted 164 recommendations (97%) and accepted 5 in principle (3%). Home Secretary Suella Braverman stated in Parliament on 6 March 2023 that the government would 'carefully consider the report's findings and recommendations in full' and committed to ensuring lessons were learned. A recommendations tracking dashboard was subsequently published.
Progress updates from February 2026 indicate that 78 recommendations (46%) are recorded as completed and 91 (54%) remain in progress. Key developments documented include the publication of Joint Operating Principles Version 3 for responding to terrorist attacks, establishment of a new multi-agency radio control system, and introduction of the Ten Second Triage system for major incidents.
Several working groups and programmes have been established, including the Clinical Response to Major Incidents group and the Stronger Local Resilience Forum trailblazer programme. The Security Industry Authority has worked with the Health and Safety Executive to develop enhanced first aid training incorporating the inquiry's recommendations.
However, multiple recommendations show limited documented progress nearly three years after publication. Several relating to legislative changes, including extending Security Industry Authority licensing and reforms to the Inquiries Act 2005, remain under consideration. The development of a healthcare standard for events, while noted as progressing with research projects complete, is not due for publication until 2026. The Clinical Response to Major Incidents group has revised its timeline to 2027 due to resource constraints.
The Ministry of Justice has stated there are no current plans to increase maximum sentences under the Inquiries Act, despite this being recommended. Various guidance documents and approved professional practices are noted as being developed but have not yet been published according to the available evidence.
Reports & milestones
Reports
17 Jun 2021
7 tracked recs
Manchester Arena Inquiry: Volume 1: Security for the Arena
· Tracked recommendations
· PDF
03 Nov 2022
157 tracked recs
Manchester Arena Inquiry: Volume 2: Emergency Response
· Tracked recommendations
· PDF
02 Mar 2023
5 tracked recs
Manchester Arena Inquiry: Volume 3: Radicalisation and Preventability
· Tracked recommendations
· PDF
Timeline
22 May 2017
Manchester Arena …
Terrorist attack at Manchester Arena killed 22 people.
22 Oct 2019
Chair Appointed
Sir John Saunders appointed as Chair.
07 Sep 2020
Hearings Begin
Public hearings commenced.
Recommendations
| Code | Recommendation | Addressed to | Response | |
|---|---|---|---|---|
| MAI-1 |
A clean start should be possible when a student moves from school to college or higher education, such that it would not …
|
Department for Education | Accepted | View → |
| MAI-52 |
In 2021, the Commission for Countering Extremism published a report entitled Operating with Impunity. Hateful Extremism: The Need for a Legal Framework. …
|
Home Office | Accepted | View → |
| MAI-54 |
It is recommended that the Department for Education consider whether schools should include notes of any significant behavioural problems on the Common …
|
Department for Education | Accepted | View → |
| MAI-55 |
It is recommended that the Home Office consider introducing a system based on a robust assessment of the risk a prisoner poses …
|
Home Office | Accepted | View → |
| MAI-60 |
It is recommended to all educational establishments and the Department for Education that images of school pupils or college students handling firearms, …
|
Department for Education | Accepted | View → |
Parliamentary activity
2 debates
28 questions
16 statements
13 Mar 2026
Written Question
Health Professions: Culture and Sports
Dame Caroline Dinenage (Conservative)
Dame Caroline Dinenage (Conservative)
Costs
| Period | Total | Inquiry legal | CP legal | Source |
|---|---|---|---|---|
| Aug 2023 | £433,226 | £161,032 | £50,193 | link |
| Aug 2023 (cum.) | £36,323,455 | £12,933,544 | £12,025,040 | link |
| Mar 2023 | £2,900,968 | £1,518,494 | £169,977 | link |
| Mar 2022 | £13,359,502 | £4,525,677 | £4,421,346 | link |
| Mar 2021 | £15,871,460 | £4,700,572 | £6,326,137 | link |
| Mar 2020 | £3,758,299 | £2,027,769 | £1,057,387 | link |