United Kingdom, England and Wales
Crown Prosecution Service
Correspondence Drafting Tool (generative AI), supplied by NTT Data UK (supplier); Microsoft Azure OpenAI GPT-4
TrialOfficial publicationPAI-E2CD57BD
- Body
- Crown Prosecution Service
- Country
- United Kingdom
- Area
- England and Wales
- Technology
- Correspondence Drafting Tool (generative AI)
- Supplier
- NTT Data UK (supplier); Microsoft Azure OpenAI GPT-4
- Status
- Trial
Being tested in live conditions under a time-limited pilot or trial. - Stage
- In use now
- Since
- 2025
- Legal basis
- Not stated in the source
- Oversight
- Human review and approval of every draft under CPS guidelines; approved data protection impact assessment and AI ethics and security assessment (as stated in the record)
- Evidence
- Official publication
Police force, government department or public body publication - Source
- GOV.UK algorithmic transparency record, CPS, 28 August 2025
- Last checked
- Record code
PAI-E2CD57BD
Notes
The Crown Prosecution Service published a record on the government's algorithmic transparency register on 28 August 2025 for a Correspondence Drafting Tool. The record describes the tool as in a beta or pilot phase with about 30 users, with numbers expected to grow as it is rolled out, and gives no start date. It helps CPS staff draft external letters and emails from CPS templates, pre-filling content from case management data and simplifying legal language, using Microsoft OpenAI GPT-family models deployed in the UK South region, with rule-based logic mapping templates and prompts. The record names GPT-4 (version 0125) as the model but lists "gpt-4o" in its usage data. The supplier is named as NTT Data UK Limited, a CPS digital delivery partner. The record says the tool "does not make decisions in the prosecution process", that staff review and finalise every draft through a review and approval process, and that a data protection impact assessment and an AI ethics and security assessment were approved.
Correspondence Drafting Tool (generative AI) elsewhere in United Kingdom
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|---|---|---|---|---|---|
| Hertfordshire ConstabularyADA (Anathem Digital Assistant) AI witness statement drafting | United KingdomHertfordshire | Anathem | — | Paused | |
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| Sussex PoliceAI speech-to-text transcription pilot | United KingdomSussex | — | — | Trial | |
| Warwickshire PoliceAI agents auditing investigation quality (Great Wave AI) | United KingdomWarwickshire | Great Wave AI (initial development) | — | Operational | |
| Metropolitan PoliceAI-assisted evidence translation | United KingdomLondon | — | — | Operational | |
| Metropolitan PoliceAI drafting of witness statements from video interviews | United KingdomLondon | — | — | Paused | |
| Police Service of Northern IrelandAI voice-to-text transcription of interviews | United KingdomNorthern Ireland | — | — | Operational | |
| HM Prison and Probation ServiceJustice Transcribe (AI transcription for probation meetings) | United KingdomEngland and Wales | — | 2025 | Operational | |
| HM Courts and Tribunals ServiceJustice Transcribe court transcript study (Crown Court) | United KingdomEngland and Wales | — | — | Proposed |