PFD report

Mark Samuel CULVERHOUSE · Prevention of Future Deaths report

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Issued 2 Jun 2021•Milton Keynes

Report record

Published report and response evidence

This page connects the concerns raised in this report with statements found in recipients’ published responses. A link shows a clear evidence connection; it does not assign responsibility.

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Concerns
1

Raised in this report

Recipients
1

Named on the report

Responses found
1

Of 1 recipient

Stated actions
3

Described in responses

Recipients and published responses

Source document

Full report text

This is the full text from the original published report.

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Concerns and recipient responses

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Report evidence summary

Concerns raised1

  1. Failure to calculate prisoners’ release dates before recall decisions
    Part of recurring concern: Inaccurate calculation of prisoners’ release and sentence dates
Responses linked to these concerns

Each statement is shown once, even when linked to more than one concern.

Actions described in response An action is something a recipient says it has done, is doing, or plans to do in response to a concern raised.3

  1. Action

    Add a NOMIS alert flag to identify prisoners whose unspent remand time may shorten custody or result in immediate release.

    Stated by HM Prison and Probation ServiceStated completedThe respondent said that this action was complete when they made their response on 4 June 2021.
  2. Action

    Issue further communication to all staff on using NOMIS alerts and confirming recalled prisoners’ release dates as soon as possible.

    Stated by HM Prison and Probation ServiceStated plannedThe respondent said that this action was planned when they made their response on 4 June 2021.
  3. Action

    Prioritize sentence calculation when NOMIS identifies unspent remand time that may affect custody duration or immediate release.

    Stated by HM Prison and Probation ServiceStated completedThe respondent said that this action was complete when they made their response on 4 June 2021.

Respondent positions A position is what a recipient says about a concern when it does not describe a specific action.2

  1. Position

    Accurate release dates cannot be calculated before recall because the sentence balance and applicable recall type remain unresolved.

    Stated by HM Prison and Probation ServiceUnable to actThe respondent said that a constraint prevented them from taking the relevant action.

Source evidence

How this individual concern was interpreted

PFD Monitor created a concise, searchable interpretation from the report wording shown below. Response links show a clear evidence connection; they do not assign responsibility.

PFD Monitor interpretation

Failure to calculate prisoners’ release dates before recall decisions

Wider context from the report

“During the course of the inquest into the death of Mark Culverhouse it became apparent, and indeed was accepted that his detention at HMP Woodhill from the 18th of April 2019 until the 23rd of April 2019 was unlawful. He had been recalled under the terms of his license having been released from Peterborough prison on the 12th of April 2019. The calculation of his release date was not conducted by the offender management unit at the prison until the 23rd of April 2019, after the extended Easter bank holiday. I was told that there was no process in place whereby a prisoner’s release is calculated until such time as they come back into custody. The prison and probation ombudsman brought this matter to the attention of the prison service recommending that the release date calculation should take place within one working day of the prisoner arriving in prison. I cannot see how that can be acceptable particularly where, in Mr Culverhouse’s case, it would have made no difference because of the bank holiday. I consider that there was a clear link between his unlawful detention and his eventual death on the 24th of April 2019 and, in order to prevent similar deaths in the future, I believe an urgent review is required and the system changed to ensure that the calculation of the release date is made prior to the decision to recall being taken. This will avoid the possibility of anyone being unlawfully imprisoned in this country under similar circumstances. ”

Is this part of a recurring concern?

Yes — Inaccurate calculation of prisoners’ release and sentence dates.

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Source evidence

How this respondent action was interpreted

PFD Monitor created a concise, searchable interpretation from the published response wording shown below.

PFD Monitor interpretation

Add a NOMIS alert flag to identify prisoners whose unspent remand time may shorten custody or result in immediate release.

Verbatim wording from the response

“In this particular case, following the recommendation made by the Prisons and Probation Ombudsman (PPO), work was carried out to add an alert flag to the National Offender Management Information System (NOMIS) to warn staff when there is unspent remand time on a prisoner’s record which may cause a reduction in the time a prisoner should spend in custody or which may give rise to an immediate release. Sentence calculation is carried out as a priority in these circumstances.”

Source location

2021-0189-Response-from-HMPPS_Published
Page 2 · response
Published 4 June 2021

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Source evidence

How this respondent action was interpreted

PFD Monitor created a concise, searchable interpretation from the published response wording shown below.

PFD Monitor interpretation

Issue further communication to all staff on using NOMIS alerts and confirming recalled prisoners’ release dates as soon as possible.

Verbatim wording from the response

“In response to your concerns, the sentence calculation policy team will be issuing further communication to all staff about the importance of using the alerts on NOMIS to flag prisoners with unspent remand time in order to reduce the risk of prisoners being detained longer than required and to confirm release dates to recalled prisoners as soon as possible.”

Source location

2021-0189-Response-from-HMPPS_Published
Page 2 · response
Published 4 June 2021

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Source evidence

How this respondent action was interpreted

PFD Monitor created a concise, searchable interpretation from the published response wording shown below.

PFD Monitor interpretation

Prioritize sentence calculation when NOMIS identifies unspent remand time that may affect custody duration or immediate release.

Verbatim wording from the response

“In this particular case, following the recommendation made by the Prisons and Probation Ombudsman (PPO), work was carried out to add an alert flag to the National Offender Management Information System (NOMIS) to warn staff when there is unspent remand time on a prisoner’s record which may cause a reduction in the time a prisoner should spend in custody or which may give rise to an immediate release. Sentence calculation is carried out as a priority in these circumstances.”

Source location

2021-0189-Response-from-HMPPS_Published
Page 2 · response
Published 4 June 2021

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Source evidence

How this respondent position was interpreted

PFD Monitor created a concise, searchable interpretation from the published response wording shown below.

PFD Monitor interpretation

Accurate release dates cannot be calculated before recall because the sentence balance and applicable recall type remain unresolved.

Verbatim wording from the response

“After careful consideration, we must advise that we do not consider it possible to comply with the recommendation for the following reasons:”

Source location

2021-0189-Response-from-HMPPS_Published
Page 1 · response
Published 4 June 2021

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Source evidence

How this respondent position was interpreted

PFD Monitor created a concise, searchable interpretation from the published response wording shown below.

PFD Monitor interpretation

Pre-recall release-date calculations cannot be undertaken by untrained staff because only trained staff calculate sentences during office hours.

Verbatim wording from the response

“After careful consideration, we must advise that we do not consider it possible to comply with the recommendation for the following reasons:”

Source location

2021-0189-Response-from-HMPPS_Published
Page 1 · response
Published 4 June 2021

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Information checked against the published report and official responses · Data reviewed 7 Sep 2026 · About data quality and limitations

Official responses located
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Data last updated 7 September 2026