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Prisoner security categories in the United Kingdom

classification system for prisoners in the United Kingdom

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionDec 12, 2025
Entity authorityQ7245832
Source-derived summary

In the United Kingdom, prisoners are divided into four categories of security. Each adult is assigned to a category according to their crime, sentence, the risk of escape, and violent tendencies. The categories are designated with the letters A to D, with A being the highest level of security, and D the lowest.

There are three different prison services in the United Kingdom, and separate services for the three Crown Dependencies, i.e., the Channel Islands jointly and the Isle of Man. His Majesty's Prison Service manages prisons in England and Wales, and also serves as the National Offender Management Service for England and Wales. Prisons in Scotland are managed by the Scottish Prison Service and prisons in Northern Ireland are managed by the Northern Ireland Prison Service.

Prisoner categories in England and Wales

Prisons in England and Wales are classified based on the age, gender, and security needs of the prisoners they hold.

Male adult prisoners

Male adult prisoners (those aged 18 or over) are given a security categorisation soon after they enter prison. These categories are based on a combination of the type of crime committed, the length of sentence, the likelihood of escape, and the danger to the public if they were to escape. The four categories are:

Category A, B and C prisons are called closed prisons, whereas category D prisons are called open prisons.

Editorial summary

Begin with the source’s own compact description: “Prisoner security categories in the United Kingdom” is classification system for prisoners in the United Kingdom. The dossier treats that line as a proposition to test through Prisoner, security and categories, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current 228-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. For this dossier, Prisoner, security and categories is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “classification system for prisoners in the United Kingdom” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Dec 12, 2025. The linked authority identifier is Q7245832. None of the 0 selected statements returned an explicit reference.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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  • Subject orientation
  • Search vocabulary
  • Locating named sources
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The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Prisoner security categories in the United Kingdom”, its source revision and the description used here.
  2. Expand the search: follow Prisoner security categories in the United Kingdom primary sources, Prisoner security categories in the United Kingdom archive and Prisoner research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from Prisoner security categories in the United Kingdom” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.