•These are a self-report measure that involve individuals volunteering details of the number and types of crimes they have committed over a specific time period.•They tend to target groups of likely offenders based on ‘risk’ factors e.g. previous connections, age, social background etc.•They also look at indicators of repeat offending, trends in the prevalence of offending, drug and alcohol use, the role of co-offenders and the relationship between perpetrators and victims.