Public Inquiry

Thirlwall Inquiry

Completed · Chair: Lady Justice Thirlwall · Established October 2023 · Commissioned by Department of Health and Social Care

Statutory inquiry into events at the Countess of Chester Hospital between 2015 and 2018, following the conviction of neonatal nurse Lucy Letby for the murder of seven babies and the attempted murder of others.

More about this inquiry

Statutory inquiry into events at the Countess of Chester Hospital between 2015 and 2018, following the conviction of neonatal nurse Lucy Letby for the murder of seven babies and the attempted murder of others. Ordered as a non-statutory inquiry on 18 August 2023; statutory footing announced 30 August 2023 and confirmed to Parliament 4 September 2023; formally set up 19 October 2023; public hearings opened 10 September 2024 and concluded March 2025. Final report published 15 September 2026 in three volumes with 17 recommendations (Volume III, Part Three, Chapter 45). The Secretary of State for Health and Social Care made an oral statement to the Commons the same day and said the government will set out a full response.

Where it stands

Public hearings were held on 63 days between May 2024 and March 2025.

Thirlwall Inquiry Final Report was published on 15 September 2026.

The most recent government response on the record is Government response to the Thirlwall Inquiry, dated 15 September 2026.

5 of the 17 recommendations tracked here have no government response on the record yet.

Government response (17 recommendations)

Delivery (the addressees’ latest statements)

  • Department of Health and Social Care says in progress 4
  • No statement from NHS Trusts found in the sources searched 3
  • No statement from Department of Health and Social Care found in the sources searched 2
  • NHS England says in progress 2
  • No statement from CQC found in the sources searched 1
  • No statement from Department of Health and Social Care or NHS England found in the sources searched 1
  • No statement from NHS England found in the sources searched 1
  • No statement from NHS England or NHS Trusts found in the sources searched 1
  • No statement from National Audit Office or NI Audit Office found in the sources searched 1
  • No statement from The Parliamentary and Health Service Ombudsman found in the sources searched 1

Record checked against the sources 2 October 2026. Latest activity 22 September 2026.

Latest on the recommendations

All 17 recommendations

Reports

Reports and timeline

Recent milestones

  • Final report published: The Report of the Public Inquiry into events at the Countess of Chester Hospital, 2015 to 201815 September 2026
  • Government response to the Thirlwall Inquiry (oral statement, Secretary of State for Health and Social Care)15 September 2026
  • Closing submissions concluded19 March 2025
Full timeline

Costs

£18,583,000

Total reported cost to March 2026 Costs in detail

Parliament

13

mentions in Parliament Parliamentary activity

Recommendations

4 shown (filtered)
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1: CCTV and monitoring

Accepted · NHS England says in progress

Recommended

All cots and incubators in all neonatal units should be fitted with baby monitors (in-cot cameras with livestreaming video), so that parents can observe their baby remotely at any time. The funding for this should be centrally managed and ring-fenced, to ensure consistency and implementation across all neonatal units at speed. By 31 March 2027, NHS England should set out a roadmap for how this will be implemented.

Since then (summary written by this site)

In September 2026, Duncan Burton, Chief Nursing Officer for England, and Sarah-Jane Marsh, NHS England Chief Operating Officer, stated that the organisation will "develop a national approach to support neonatal units to implement this", drawing on learning from places where monitors are already used (Duncan Burton; Sarah-Jane Marsh, Sep 2026). This followed an oral statement earlier that month by Yvette Cooper, Secretary of State for Health and Social Care, who accepted the recommendation and directed officials to urgently develop plans for cot cameras (Yvette Cooper response, Sep 2026).

Addressed to NHS England · Full record

2: Insulin

Accepted · Department of Health and Social Care says in progress

Recommended

i. Digital devices should be used to restrict access of insulin to authorised people and record access to insulin storage units. I acknowledge that steps are being taken to achieve this. By 31 March 2027, all neonatal units must meet the expected requirements for access control and storage of insulin set out in the NHS England Getting It Right First Time guide, GIRFT Neonatology: Guide to safe insulin use. ii. Until access to insulin requires the provision of biometric data, each Trust should install CCTV cameras focused on storage fridges, cupboards or units. The cameras should store recordings for at least 28 days. iii. The GIRFT Laboratory Handling of Insulin Requests in the Investigation of Hypoglycaemia guidance for the testing and reporting of insulin and C-peptide results, issued in October 2025, must be made mandatory and of national application.

Since then (summary written by this site)

In September 2026, the Department of Health and Social Care accepted the recommendation, with the Secretary of State, Yvette Cooper, stating that the government agreed to introduce stronger controls on insulin storage while beginning work on safe storage guidance (Yvette Cooper response, Sep 2026; Department of Health and Social Care, Sep 2026). Duncan Burton, Chief Nursing Officer for England, and Sarah-Jane Marsh, NHS England Chief Operating Officer, instructed trusts that same month to urgently install CCTV monitoring insulin storage by 30 November 2026 until biometric access is in place (Duncan Burton; Sarah-Jane Marsh, Sep 2026). Under their directive, all neonatal units must meet required access control and storage standards by 31 March 2027 (Duncan Burton; Sarah-Jane Marsh, Sep 2026).

Addressed to no body recorded · Full record

3: Bereavement care

Accepted · Department of Health and Social Care says in progress

Recommended

The National Bereavement Care Pathway for neonatal death should be implemented nationally and in all Trusts by 31 August 2027.

Since then (summary written by this site)

Yvette Cooper, Secretary of State for Health and Social Care, stated in September 2026 that all NHS trusts are signed up to implement the National Bereavement Care Pathway for neonatal death by 2027, with the department confirming that rollout is in progress (Yvette Cooper response, Sep 2026; Department of Health and Social Care, Sep 2026). In a letter published that month, Duncan Burton, Chief Nursing Officer for England, and Sarah-Jane Marsh, NHS England Chief Operating Officer, found that integrated care boards and providers should take immediate action to improve care of the bereaved (Duncan Burton; Sarah-Jane Marsh, Sep 2026).

Addressed to NHS Trusts · Full record

8: Sudden Unexpected Death in Infancy and Childhood (SUDIC)

Accepted · NHS England says in progress

Recommended

i. NHS England must: a. Immediately inform all Trusts with a neonatal unit that the SUDIC process applies to the sudden and unexpected deaths of babies who have never left hospital. b. Direct all Trusts that they must, within seven days, draw this information to the attention of all relevant staff and the Board. ii. DHSC must complete its review and revision of the SUDIC guidelines and ensure the revised guidelines are distributed to all Trusts by no later than 31 March 2027. The guidelines must include a clear statement that SUDIC applies to sudden and unexpected deaths of babies who have never left hospital. iii. SUDIC forms must be redesigned and shortened to keep bureaucracy to a minimum. The focus should be on what it is essential to know.

Since then (summary written by this site)

In September 2026, Duncan Burton and Sarah-Jane Marsh of NHS England instructed all trusts with a neonatal unit to communicate to relevant staff and their boards by 28 September 2026 that the SUDIC protocol applies to unexpected deaths within those units (Duncan Burton; Sarah-Jane Marsh, Sep 2026). In September 2026, Yvette Cooper confirmed that reviewing and updating the sudden unexpected death in infancy and childhood guidance was "now underway" (Yvette Cooper response, Sep 2026).

Addressed to NHS England; Department of Health and Social Care · Full record

Reports and timeline

Timeline

Lady Justice Thirlwall appointed to chair the Inquiry

Source

Statutory inquiry into the events at the Countess of Chester announced

Source

The Government publishes the Terms of Reference for the Thirlwall Inquiry

Source

Material first provided to the Inquiry by Cheshire Police

Source

Chair invites core participant applications from interested organisations or individuals

Source

First Preliminary Hearing

Source

Opening statements commence

The Inquiry commenced its hearings on 10 September 2024 with opening statements; oral witness evidence began separately on 16 September.

Source

Oral witness evidence begins

The Witness Timetable states that oral evidence from witnesses on Parts A/B/C ran from 16 September 2024 to 17 January 2025. This is distinct from the 10 September opening statements.

Source

Show all 14 milestones

Last day of Parts A/B/C oral evidence (per Witness Timetable)

Source

Further evidential hearing

The Inquiry held a further evidential hearing on 24 February 2025 for Dr Susan Gilby; this was after the 59 sitting days/133 witnesses stated for the Parts A/B/C hearing period ending 17 January.

Source

Thirlwall Inquiry Closing Submissions begin

Source

Closing submissions concluded

The Inquiry stated that Lady Justice Thirlwall drew all evidence and submissions to a close on 19 March 2025

Source

Government response to the Thirlwall Inquiry (oral statement, Secretary of State for Health and Social Care)

Oral statement to the House of Commons by the Rt Hon Yvette Cooper MP, Secretary of State for Health and Social Care, delivered 15 September 2026. Verbatim opening: 'Madam Deputy Speaker, with permission, I would like to make a statement on the report of the three-year public inquiry into events at the Countess of Chester Hospital, between 2015 and 2018, led by Lady Justice Thirlwall, published today.'

Source

Final report published: The Report of the Public Inquiry into events at the Countess of Chester Hospital, 2015 to 2018

Source

RCPCH 2016 neonatal service review

Earlier neonatal service review by RCPCH, October 2016, published as inquiry evidence.

Costs

Total reported cost: £18,583,000
Period Total Inquiry legal CP legal Source
Mar 2026 £2,651,000 £1,024,000 £4,000

Inquiry-published FY2025/26 expenditure, full year; not a final inquiry total

Source and qualifications
Mar 2026 (cum.) £18,583,000 Not reported Not reported

Derived sum of three published FY costs to Mar 2026; not official cumulative/final

Source and qualifications
Sep 2025 £1,345,000 £503,000 £2,000

6M 2025-26 (Apr - Sep 2025)

Source and qualifications

Accounting period: 1 Apr 2025 to 30 Sep 2025.

Report writing period. No hearings. Report publication expected after Easter 2026. All figures rounded to nearest £000, exclude VAT.

6M 2025-26 (Apr - Sep 2025)

Sep 2025 (cum.) £17,277,000 £8,599,000 £3,107,000

Cumulative expenditure Sep 2023 - Sep 2025

Source and qualifications

Accounting period: 4 Sep 2023 to 30 Sep 2025.

Statutory inquiry into events at the Countess of Chester Hospital following conviction of Lucy Letby. Established 19 Oct 2023. Chaired by Lady Justice Thirlwall. Funded by DHSC. Hearings Sep 2024 - Jan 2025. Report expected after Easter 2026. Inquiry Legal = Counsel + Solicitor/paralegals + Experts. CP Legal = Family legal fees + non-CP legal assisting. Staff = Secretariat + Chair. Hearings = venue + AV + other. Technology = IT + Media + Office accommodation. Other = Emotional support + Publication + Admin/travel. All figures rounded to nearest £000, exclude VAT.

Cumulative expenditure Sep 2023 - Sep 2025

Mar 2025 £13,098,000 £5,745,000 £2,877,000

FY2024/25 figures re-published in FY2025/26 Inquiry report; category mapping corrected

Source and qualifications

Accounting period: 1 Apr 2024 to 31 Mar 2025.

The Inquiry FY25/26 report reproduces FY2024/25 total £13,098k. Mapped visible £000 components: secretariat 749 to staff; chair 452 to panel; counsel 1,983 plus solicitor 3,762 to inquiry legal 5,745; family legal fees 2,877 to core-participant legal; office 153 plus hearing venue 245 to accommodation 398; IT 601 plus hearing AV 1,274 to technology 1,875; experts 211, non-core-participant legal 12, emotional support 194, media 226, hearing other 344 and administration 15 to other 1,002. Safeguarding stays NULL: the source does not identify support beneficiaries for this schema. The mapped categories sum to the published £13,098k. Values are rounded to nearest £000, exclude VAT, and are not accountant-compiled accounts. Only category/source/notes fields are corrected; original period and £13,098,000 total remain.

FY2024/25 figures re-published in FY2025/26 Inquiry report; category mapping corrected

Mar 2024 £2,834,000 £2,139,000 £216,000

FY2023/24 figures re-published in FY2025/26 Inquiry report; category mapping corrected

Source and qualifications

Accounting period: 4 Sep 2023 to 31 Mar 2024.

The Inquiry FY25/26 report reproduces the FY2023/24 table: total £2,834k for 4 September 2023–31 March 2024. Mapped visible components in £000: secretariat 168 to staff, chair 133 to panel, counsel 742 plus solicitor 1,397 to inquiry legal 2,139, family legal fees 216 to core-participant legal, IT 133 to technology, and emotional support 27 plus media 16 plus administration 2 to other 45. Office accommodation is a dash, so the field is NULL; safeguarding remains NULL because beneficiaries of emotional support are not specified. The rounded outer Legal costs subtotal 2,356 differs by £1k from its rounded components 742+1,397+216=2,355; component-based categories and published total are retained without inventing £1k. Source values are rounded to nearest £000, exclude VAT, and are not accountant-compiled accounts. Only category/source/notes fields are corrected; original period and £2,834,000 total remain.

FY2023/24 figures re-published in FY2025/26 Inquiry report; category mapping corrected

4 Sep 2023 – 31 Mar 2026 · Derived sum of three published FY costs to Mar 2026; not official cumulative/final

Derived sum of three published FY costs to Mar 2026; not official cumulative/final

Source and qualifications
Detailed cost breakdown · to Mar 2026
Inquiry legal costs
£1,024,000
Core participant legal costs
£4,000
Panel remuneration
£474,000
Staff
£752,000
Accommodation
£148,000
Technology
£205,000
Other
£44,000

Parliamentary activity

13 mentions since Oct 2023
2 debates 5 questions 6 statements

Thirlwall Inquiry

Written Question House of Commons Damian Hinds · Conservative

Asked: To ask the Secretary of State for Health and Social Care, with reference to her statement of 15 September on the Thirlwall Inquiry and the “recommendation hub to properly track our implementation progress internally, not just for this inquiry but for othe

Public Inquiries: Costs

Written Question House of Lords Lord McCrea of Magherafelt and Cookstown · Democratic Unionist Party

Asked: To ask His Majesty's Government what the costs are of the (1) Hamill Inquiry, and (2) Letby Inquiry.

Answered by Cabinet Office: The Robert Hamill Inquiry opened in 2005. The previous chair of the Inquiry reported that the Terms of Reference were fulfilled in 2011. However, due to legal proceedings, the Inquiry report was only published on 14 September 2026. The total amount paid for inquiry expenses since its establishment, including expenditure since 2011, will be published by the Secretary of State …

Maternity Services: Mental Health

Written Question House of Commons Kim Johnson · Labour

Asked: To ask the Secretary of State for Health and Social Care, what steps her Department are taking to improve data collection into inequalities in maternal mental health outcomes for Black women and birthing people.

Answered by Department of Health and Social Care: It is a priority for the Government to ensure that all women and babies receive the high-quality care they deserve, regardless of their background, location or ethnicity. The Department has funded the PRiSMM programme through the National Institute for Health and Care Research. It will report England-wide data on severe maternal morbidity and evaluate the Maternal Care bundle, including an …

Thirlwall Inquiry: Costs

Written Question House of Commons Mike Wood · Conservative

Asked: To ask the Secretary of State for Health and Social Care, what has been the total cost to date of the Thirlwall Inquiry.

Answered by Department of Health and Social Care: The total cost of the Thirlwall Inquiry from its commencement in September 2023 to the end of March 2026 is £18,718,000.00. This includes March 2026 forecasted amounts.

Consultation response on proposals to regulate NHS managers

Written Ministerial Statement House of Commons Karin Smyth · Labour

Statement: Ensuring strong and accountable NHS leadership will be critical to delivering our plan for change and building an NHS fit for the future.We know the important role that high quality leadership plays in fostering a compassionate and transparent culture within the NHS and we want …

View all 13 mentions →

Key facts

Duration: 2 years, 11 months Total reported cost: £18.6m