What to check in your case
Identify why and how long the signal was used, the emergency and other road users. For a professional response, include the dispatch record with irrelevant third-party details redacted.
Documents for your defence
Full notice or decision, front and back, and evidence of the date of service.
- Dispatch record or description of the danger prompting the warning
Legislation and official sources
Information checked on 7 November 2026.