Crime Data

Tabled: 5 September 2018

Appendix C. Methodology

There are two main ways that crime is reported—through members of the public reporting an incident in person at police stations or by calling Triple Zero, or through police members detecting an incident while on duty.

We tested completeness and timeliness by tracing a randomly selected sample of 380 records from Triple Zero calls sent to divisional vans in July, August and September 2017, and then from ePDRs into the LEAP system.

To search LEAP, we needed ePDRs to contain identifying names and places, but this was complicated due to:

  • members receiving scant information from callers to Triple Zero
  • members recording insufficient details on the ePDR.

One test focused on completeness, determining whether the incidents recorded in the ePDRs are also recorded in LEAP. We reviewed the ePDRs and identified 358 jobs that indicated that an offence had been detected or which, based on our understanding of the Victoria Police standards, we judged as needing to be recorded in LEAP. Using data analytics and assistance from Victoria Police, we then conducted a search of the LEAP data to locate corresponding dates, times and details for the records.

A second test used 48 jobs selected from shifts in August 2017 to measure the timeliness of LEAP recording based on the period elapsed between a job being generated in the ePDR and the corresponding LEAP record's 'create date'. Victoria Police does not have a specific target for how quickly members should complete reports after they become aware of a reportable incident, but it is expected that members complete required reports by the end of their shifts in most circumstances. We assessed that a record was completed in a timely fashion if it was created in LEAP within 24 hours of the ePDR job. This reflects the standards for timeliness.

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