FOI release

Nitrous oxide discovery RTCs post-ban

Case reference FOI2026/00142

Received 6 February 2026

Published 22 April 2026

Request

I am seeking statistical information relating to road traffic collision (RTC) incidents attended by London Fire Brigade following the ban on recreational possession of nitrous oxide (effective 8 November 2023). 1. Please provide the total number of road traffic collision incidents attended by LFB where any mention of the following terms appears in incident logs, notes, hazards sections, or any free-text fields of your Incident Recording System: - "nitrous oxide" - "laughing gas" - "NOS" Please provide separate aggregated totals for each of the following periods: - 2023 (8 November 2023 to 31 December 2023 only) - 2024 (1 January to 31 December 2024) - 2025 (1 January 2025 to present date) 2. For the same stated periods, please also provide the total number of road traffic collision incidents attended by LFB (regardless of nitrous oxide involvement) for statistical context.

Response

Please see response in the Document section below

Documents

• FOIA response for disclosure log - FOI2026_00142.pdf (83.5 KB)

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