Indicator:

Number of offences by selected offence type and age group

Data source:

Compiled by UWA and Telethon Kids Institute based on WA Police Force - Incident Management System data

Numerator:

Number of offences by selected offence type and age group

Denominator:

Total ERP for selected age group

Unit of measure:

Per 10,000 population

Geography:

SA2, SA3, LGA, HR, RDC

Data confidentiality:

Counting rules have been applied to certain reporting categories (typically those known to have been prone to over-recording of offences historically) in order to provide a more accurate picture of crime volumes and trends. Counting rules are applied historically to ensure comparability.

Notes:

Distinct counts of selected offences involve an offender, where the offence occurred between 01 January 2005 and 31 December 2018 inclusive, in the associated Local Government Area, SA3 Area and SA2 Area. As such, a single offence involving multiple offenders will be counted once against the relevant categories

Location data is recorded for all offences. However, if the location is unable to be identified using WA Police Force geographical mapping tables, the offence will not appear in these figures. This is approximately 0.0004% of offences.

Indicator:

Number of distinct offenders by selected offence type and age group

Data source:

Compiled by UWA and Telethon Kids Institute based on WA Police Force - Incident Management System data

Numerator:

Number of distinct offenders by selected offence type and age group

Denominator:

Total ERP for selected age group

Unit of measure:

Per 10,000 population

Geography:

SA2, SA3, LGA, HR, RDC

Data confidentiality:

Counting rules have been applied to certain reporting categories (typically those known to have been prone to over-recording of offences historically) in order to provide a more accurate picture of crime volumes and trends. Counting rules are applied historically to ensure comparability.

Notes:

Distinct counts of offenders, where the offence occurred between 01 January 2005 and 31 December 2018 inclusive, in the associated Local Government Area, SA3 Area and SA2 Area. As such, an offender could commit multiple offences (of the same category) within an LGA, SA3 or SA2 for any given year and be counted only once. An offender committing multiple offences across LGAs, SA3 areas, SA2 areas, offence categories or years would be counted against each relevant field.

An offender is identified in Western Australia Police Force's Incident Management System as an individual bearing responsibility for an offence. Offenders can be processed by varied means and have not necessarily been convicted by a court.