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Data First Prisoner Custodial Journey Dataset (PRIS)

Population Size

Not reported
Population Size statistic card

Years

2011 - 2021

Years statistic card

Associated BioSamples

None/not available

Associated BioSamples statistic card

Geographic coverage

United Kingdom

Wales

Geographic coverage statistic card

Lead time

2-6 months

Lead time statistic card

Summary

This dataset contains the data for Individuals serving custodial sentences in England & Wales who appear within records from the prison data source, p-NOMIS.

Documentation

The prisoner dataset extracts from the Prison National Offender Management Information System (p-NOMIS) and the Offender Assessment System (OASys), operational databases used in prisons for the management of offenders.

Tables: NOMIS - One record per prisoner per custodial journey (i.e. each separate instance that a person was in prison during the period, but combining connected spells in custody, remand and recalls) providing details around their personal characteristics, main offence, sentence length, and release information.

OASys - One record per prisoner per assessment (prisoners may have more than one assessment per custodial journey). The OASys data only includes OASys records that have been linked to an offender in the NOMIS dataset.

Safety in Custody - One record per prisoner per incident

Dataset type

Health and disease

Dataset sub-type

Not applicable

Associated media

https://popdatasci.swan.ac.uk/centres-of-excellence/sail/https://www.youtube.com/watch?v=ZK9-Jw3uVkwhttps://saildatabank.com/https://saildatabank.com/about-us/https://www.gov.uk/guidance/ministry-of-justice-data-first#moj-cross-justice-system-datasets

Keywords

Observations

Observed Node

Disambiguating Description

Measured Value

Measured Property

Observation Date

Events

Activities, Cases, and People

3000000

Count

29 Sep 2021

Provenance

Source of data extraction

Other

Collection source setting

Other

Patient pathway description

The person identifiers in the original data (offender_id and offender_id_display) are known to be unreliable and do not consistently and comprehensively allow the same offender (person) to be identified across distinct prison terms. While prison staff make an attempt to connect records to previous incarcerations at reception, many links are missed,

and sometimes records are connected erroneously.

The estimated_offender_id has been assigned by Data First using a statistical model and the open source splink software. This allows data users to see which individuals have re-entered prisons on multiple occasions. Identifiable personal information used to derive estimated_offender_id is not shared and hashes are created for other IDs that appear outside of this dataset.

Young Offenders are included if resident at prisons or Young Offender Institutes (YOIs) that use p-NOMIS.

Image contrast

Not stated

Biological sample availability

None/not available

Structural Metadata

Details

Publishing frequency

Irregular

Version

5.0.0

Modified

08/10/2024

Distribution release date

01/01/2022

Citation Requirements

Ministry of Justice

Coverage

Start date

01/01/2011

End date

29/09/2021

Time lag

Variable

Geographic coverage

United Kingdom, Wales, England

Maximum age range

120

Follow-up

Other

Accessibility

Language

en

Controlled vocabulary

LOCAL

Format

SQL Database Table

Data Access Request

Dataset pipeline status

Available

Access rights

https://saildatabank.com/data/apply-to-work-with-the-data/

Time to dataset access

2-6 months

Access request cost

Data provision is free from SAIL. Overall project costing depends on the number of people that require access to the SAIL Gateway, the activities that SAIL needs to complete (e.g. loading non-standard datasets), data refreshes, analytical work required, disclosure control process, and special case technological requirements.

Access method category

TRE/SDE

Access service description

The SAIL Databank is powered by the UK Secure e-Research Platform (UKSeRP). Following approval through safeguard processes, access to project-specific data within the secure environment is permitted using two-factor authentication.

Access for approved purposes and projects is to accredited researchers through the ONS Secure Research Service (SRS). The application form is available on gov.uk and governed by MoJ and HMCTS. Please see the application form guidance and the Data First user guide for more information on the process.

Jurisdiction

GB-WLS

Data use limitation

General research use

Data use requirements

Project-specific restrictions,Time limit on use,User-specific restriction

Data Controller

SAIL Databank

Data Processor

SAIL Databank

Dataset Types: Health and disease

Collection Sources: Other

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