DVSA topic · Updated 2026-07-23

Incidents, Accidents & Emergencies

What to do at the scene of an incident, breakdowns, first aid basics and warning devices.

Quick answer

Breakdowns, crash scenes, first aid basics and warning devices — what this topic tests and the Highway Code rules behind it.

What does this topic cover?

What to do when things go wrong: breakdown procedure on ordinary roads and motorways, warning triangles and hazard lights, your legal duties after a collision, scene safety, and DR ABC first-aid basics until help arrives.

Which Highway Code rules should I revise?

Rules 116 (hazard warning lights), 274–287 (breakdowns, obstructions and incident scenes, including the 45-metre warning triangle rule), and Annexe 7 (first aid: airway, breathing, bleeding, burns and shock).

Test yourself on Incidents, Accidents & Emergencies

Free Incidents, Accidents & Emergencies practice questions in the official four-option format, with explained answers and Highway Code references.

Start the Incidents, Accidents & Emergencies practice test

Frequently asked questions

What must you do if you're involved in a collision?

Stop. If there's injury or damage and you don't exchange details at the scene, report it to the police as soon as practicable — at most within 24 hours.

Should you remove an injured motorcyclist's helmet?

Not unless it's essential to restore breathing — removing it can make head and neck injuries worse.

Revise the rest of the syllabus in the 14 DVSA topics directory, or sit the full free mock theory test.