An alleged offender incident is an incident involving one or more offences where an individual, business or organisation has been recorded as an alleged offender. An alleged offender incident represents one alleged offender but may involve multiple victims and offences. One incident may involve offences that occur over a period of time but if processed by Victoria Police as one incident, it will have a count of one in the data presented in this section.
There may be multiple incidents within the reference period that involve the same individual, business or organisation as an offender, where this occurs they will be counted for each incident. If there are multiple alleged offenders related to a criminal event, each will have their alleged offender incident counted once in the figures.
Where there were multiple offences recorded within the one incident, the incident is assigned an offence category of the most serious offence in the incident, referred to as the principal offence.
Key movements in the number and rate of alleged offender incidents
Alleged offender incidents, 10 year trend
In the last 12 months there was an increase in the number of alleged offender incidents (7,548 incidents) and a 47.6% increase (56,939 incidents) from 119,520 alleged offender incidents recorded in the year ending December 2009. The number of alleged offender incidents are the highest in CSA data holdings, which go back to July 2004. The rate per 100,000 population also increased, by 2.1% in the last 12 months.
Number of alleged offender incidents by principal offence category
In order to best represent the type of offence associated with an incident involving multiple offences, the most serious offence within the incident is determined and this becomes the principal offence to represent the incident.
The number of alleged offender incidents with a principal offence of Crimes against the person has increased in the past 5 years, up 20.2% (8,163 incidents) from 40,367 alleged offender incidents. Crimes against the person increased 5.4% (2,486 incidents) to 48,530 incidents in the last 12 months and made up 27.5% of all alleged offender incidents.
By principal offence, the category that made up the largest proportion of alleged offender incidents was Property and deception offences (36.9% or 65,142 incidents), this category increased 2.0% (1,246 incidents) from previous year.
Alleged offender incidents by principal offence, 5 year trend
Alleged offender incidents with a principal offence of Drug offences have increased 9.5% (1,295 incidents) in the past year, comprising 14,857 alleged offender incidents. This offence division made up 8.4% of all alleged offender incidents in the year ending December 2018.
In the past 12 months alleged offender incidents with a principal offence Justice procedures offences increased by 8.7% (2,157 incidents) to 27,086 incidents. Since the year ending December 2014 this category has increased 20.9% (4,691 incidents) up from 22,395 alleged offender incidents.
Sex and age of alleged offenders
Of the 176,459 alleged offender incidents recorded in the last 12 months, 176,439 incidents were person alleged offenders while the remainder were a business or organisation. Of the person alleged offender incidents 79.0% were a male offender and 21.0% were a female offender. The remaining alleged offenders had an unknown sex.
Overall person alleged offender incidents increased in the year ending December 2018, up 4.5% (7,541). The number of male alleged offender incidents increased by 3.6% (4,845 incidents) from the previous year, while female alleged offender incidents increased by 7.8% (2,686 incidents) from the previous year.
Alleged offender incidents by sex and age, year ending December 2018
In the last 12 months alleged offenders aged between 10–19 years decreased 4.5% from 29,634 to 28,299 incidents. The proportion of alleged offenders aged between 10–19 years has decreased from 19.7% in December 2014 to 16.0% of the total alleged offender incidents in the last 12 months.
While male alleged offenders aged 10–19 years decreased 7.0%, from 23,484 to 21,838 in the last year, female alleged offenders aged 10–19 years increased by 5.1% from 6,149 to 6,460. For female alleged offenders in this age group the 10–14 year age group decreased by 1.1% or 18 incidents in the last 12 months while those aged 15–19 years increased 7.3% from 4,493 to 4,822 incidents.
There were two in five alleged offender incidents (39.3% or 69,325) recorded in the past 12 months resulted in an Arrest, while 45,839 (26.0%) resulted in a Summons and 37,880 (21.5%) in an Intent to Summons being recorded. There were 10,106 (5.7%) alleged offender incidents where a Caution or Official warning was issued.
An Intent to Summons is an interim investigation status and is not necessarily the final outcome of an incident. As the data is captured at a point in time, the investigation status of each incident is subject to change.
Alleged offender incidents by outcome, year ending December 2018
Other includes: Penalty infringement notice, not authorised, warrant issued, notice to appear, presentment and other statuses.
Key movements in the number of alleged offender incidents by Aboriginal or Torres Strait Islander status
Aboriginal or Torres Strait Islander status for alleged offender incidents are based on the most frequent recording of the Indigenous status for each offender. Under this counting rule, a person has either a yes or no response to the Standard Indigenous Question on their record, then the most frequent recorded response is taken as correct. If the person only has one meaningful response, then that response stands across all records. If a person appears in the dataset two different times with a ‘yes’ and a ‘no’ in the records, a ‘yes’ response is taken over a ‘no’ response. For more information on how this counting rule operates see the Explanatory Notes . There has been a decline in the quality of recording of Indigenous status, with the number of offender incidents with an Unknown Indigenous status increasing by 64.3% in the last five years. This decline in quality may impact on trend analysis.
Alleged offender incidents by Indigenous status, 5 year trend
Alleged offender incidents by Indigenous status and age, year ending December 2018
The age distribution for Aboriginal or Torres Strait Islander people varies in comparison to non-Indigenous people in Australia. On average, Aboriginal or Torres Strait Islander people tend to be younger than non-Indigenous people. For these statistics, the CSA has not controlled for these differing age populations.
 Excludes alleged offenders where their Indigenous status is unknown.