Version: 1.0.0 | Published: 26 Jun 2025 | Updated: 164 days ago
Data First Cross-Justice System Linking Dataset (CJSL)
Dataset
Documentation
Description:
This linking dataset allows users to join up information in other Data First justice datasets. It does not itself contain information about people or their justice system interactions but acts as a lookup to identify which records in separate datasets refer to the same people.
The MOJ Data First datasets currently covered are:
- magistrates' courts defendant (MACO)
- Crown Court defendant (CRCO)
- prisoner custodial journey (PRIS)
- probation (PROB)
- family court (FACO)
- civil court
- offender assessments
It contains two tables: one acts as a lookup to group records together by person across all the datasets (xjs_link table), and the second acts as a lookup to link court cases between the Crown Court and the magistrates’ courts (mags_crown_journey table).
XJS Link file -
This linking dataset allows users to join up information about people in Data First cross-justice system datasets. It acts as a lookup to identify which records in separate datasets refer to the same people.
Mags Crown Journey file -
This linking dataset allows users to join up information about people in Data First cross-justice system datasets. It acts as a lookup to identify which records in separate datasets refer to the same people.
This linking dataset allows users to join up information about cases in Data First magistrates' courts and Crown Court datasets. It acts as a lookup to identify which records refer to the same criminal case appearing in the two courts.
More information can be found at: https://www.gov.uk/guidance/ministry-of-justice-data-first#moj-cross-justice-system-datasets
Coverage
Spatial:
England and Wales
Follow Up:
Other
Pathway:
Ministry of Justice
Provenance
Origin
Purposes:
Administrative
Sources:
- EPR
- Other
Collection Situations:
- National government
- Other
Temporal
Accrual Periodicity:
Static
Start Date:
01 January 2011
End Date:
31 March 2023
Time Lag:
2-6 months
Accessibility
Access
Access Service:
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 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.
Delivery Lead Time:
2-6 months
Jurisdictions:
- UK
- GB
Data Controller:
Ministry of Justice
Data Processor:
SAIL Databank
Usage
Data Use Limitations:
General research use
Data Use Requirements:
- Project-specific restrictions
- Time limit on use
- User-specific restriction
Resource Creators:
Ministry of Justice
Format and Standards
Vocabulary Encoding Schemes:
LOCAL
Conforms To:
- LOCAL
- OTHER
Languages:
en
Formats:
SQL database table
Observations
Statistical Population
Population Description
Population Size
Measured Property
Observation Date
Events
3000000
Count
31 January 2023