 It concords well with the Alcohol Use Disorders Identification Test (AUDIT) questionnaire but is administered in a fifth of the time.When 40–70% of the patients in an accident and emergency department (AED) are there because of alcohol-related issues, it is useful for the staff of the AED to determine which of them are hazardous drinkers so that they can treat the underlying cause and offer brief advice which may reduce the health impact of alcohol for that patient.In accident and emergency departments it is also important to triage incoming patients as quickly as possible, to reduce staff size and cost.