Ketamine misclassification as Class B drug
Home Office received 2 coroners' reports about this hazard between 5 Nov 2024 and 19 Aug 2025.
They came from 2 different coroners in 2 coroner areas. A similar concern was raised again 1 time after the first warning.
A published response was found for 1 of the 1 earlier reports, stating 1 specific action.
The story, report by report
Spacing grows with the time between reports.
“Maintaining its classification as a Class B drug was likely to encourage others to start to use it or continue to use it under the false impression it is”
Original on judiciary.uk ↗ Home Office responded, stating 1 specific action.Response (PDF) ↗
“I intend to commission the ACMD to conduct an updated harms assessment of ketamine as part of the forthcoming three-year work programme commission cycle.”
Web search (Tavily): No evidence found either way
Ketamine - House of Commons Library ↗- 9 months laterIdentical hazardConfidence 0.96 · higha different coroner
“Ketamine's classification as a class B controlled drug may give an impression that the dangers associated with its use are reduced as compared with class A drugs.”
Original on judiciary.uk ↗ Repeated from the earlier report:classificationclassdrugimpression
Home Office responded.Response (PDF) ↗Response (PDF) ↗Response (PDF) ↗
- All reports to Home Office
Each row is one judged link between an earlier and a later report. Open a row to read both quotes, found word for word in the originals.
2024 → 2025Gemma Weeks9 months after James Boland · different coronerIdentical hazardConfidence 0.96 · high
Identical hazardConfidence 0.96 · highBoth reports highlight that classifying ketamine as a Class B drug creates a false impression that it is less harmful than Class A drugs, encouraging use despite serious health risks.
James Boland · 5 Nov 2024
“Maintaining its classification as a Class B drug was likely to encourage others to start to use it or continue to use it under the false impression it is”
Original on judiciary.uk ↗ Gemma Weeks · 19 Aug 2025
“Ketamine's classification as a class B controlled drug may give an impression that the dangers associated with its use are reduced as compared with class A drugs.”
Original on judiciary.uk ↗ Stated action in the response to the earlier report
“I intend to commission the ACMD to conduct an updated harms assessment of ketamine as part of the forthcoming three-year work programme commission cycle.”
Stated action
“I intend to commission the ACMD to conduct an updated harms assessment of ketamine as part of the forthcoming three-year work programme commission cycle.”
What happened next: No evidence found either way
The ACMD's updated harms assessment for ketamine was published in January 2026, but the promised commissioning of the assessment within the 2025-2028 work programme is not confirmed in the provided sources.
“The ACMD published its updated harms assessment for ketamine in January 2026. Its report includes detailed information about the use and misuse”
“The Advisory Council on the Misuse of Drugs (ACMD) has today (28 January 2026) published its updated harms assessment of ketamine.”
“Drugs (ACMD) is calling for evidence on ketamine use, harms and interventions to inform its recommendations to Government on policy and classification.”
No evidence found does not mean the action did not happen.
No specific action could be extracted with a verified quote.
No specific action could be extracted with a verified quote.
No specific action could be extracted with a verified quote.
- Each report's concerns were extracted by Nemotron 3 Nano on Nebius Token Factory, each with a quote copied from the report.
- Concerns from reports to Home Office at least six months apart were compared by meaning (Qwen3 embeddings) and wording (TF-IDF).
- The closest pairs were judged by Nemotron 3 Super with reasoning on. Only identical or closely related, with confidence of at least 0.70, are shown.
- Every quote was checked by code as an exact substring of the original text. Names of staff and family are redacted, and the deceased are named by report title only.
| Link | Meaning | Wording | Judge | Coroner |
|---|---|---|---|---|
| 2024 → 2025 | 0.89 | 0.30 | Identical · 0.96 | different |
Judge model: nvidia/nemotron-3-super-120b-a12b. How Nemotron did the work · Full methodology.
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This shows that a similar concern was raised again after an earlier report. It does not say why, and it is not a finding about any organisation or person. To report an error, see the corrections route.