Glyn Thomas

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Independent investigation into
the death of Mr Glyn Thomas,
a prisoner at HMP Holme House,
on 23 November 2025
A report by the Prisons and Probation Ombudsman
Third Floor, 10 South Colonnade Email: mail@ppo.gov.uk T l 020 7633 4100
Canary Wharf, London E14 4PU Web: www.ppo.gov.uk
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OFFICIAL - FOR PUBLIC RELEASE
© Crown copyright, 2026
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1. The Prisons and Probation Ombudsman aims to make a significant contribution to
safer, fairer custody and community supervision. One of the most important ways in
which we work towards that aim is by carrying out independent investigations into
deaths, due to any cause, of prisoners, young people in detention, residents of
approved premises and detainees in immigration centres.
2. If my office is to best assist His Majesty’s Prison and Probation Service (HMPPS) in
ensuring the standard of care received by those within service remit is appropriate,
our recommendations should be focused, evidenced and viable. This is especially
the case if there is evidence of systemic failure.
3. In October 2017, Mr Glyn Thomas was sentenced to 19 years imprisonment for
sexual offences. He died of pneumonia on 23 November 2025, at HMP Holme
House. He was 76 years old. We offer our condolences to Mr Thomas’s family and
friends.
4. The Ombudsman’s office wrote to Mr Thomas’s next of kin to explain the
investigation and to ask if they had any matters they wanted us to consider. They
did not respond.
5. NHS England commissioned an independent clinical reviewer to review Mr
Thomas’s clinical care at HMP Holme House.
6. The clinical reviewer concluded that the clinical care Mr Thomas received at Holme
House was of a good standard and equivalent to that which he could have expected
to receive in the community. She made no recommendations.
7. The PPO investigator investigated the non-clinical issues relating to Mr Thomas’s
care.
8. We did not find any non-clinical issues of concern. We make no recommendations.
9. We shared our initial report with HMPPS and the prison’s healthcare provider,
Spectrum Community Health CIC. They found no factual inaccuracies.
10. At the inquest, held on 9 December 2025, the Coroner concluded that Mr Thomas
died from natural causes.
Adrian Usher April 2026
Prisons and Probation Ombudsman
Prisons and Probation Ombudsman 1
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Third Floor, 10 South Colonnade Email: mail@ppo.gov.uk T l 020 7633 4100
Canary Wharf, London E14 4PU Web: www.ppo.gov.uk
OFFICIAL - FOR PUBLIC RELEASE