July 2017 – tool for coming persecution

Article By: The Vancouver Police Department

The Vancouver Police Department is adopting a new crime prediction model that allows the VPD to forecast the location of property crime & take proactive measures to prevent it. The VPD will become the 1st police agency in Canada to use this type of predictive technology for operational purposes.

“We are always looking for new & innovative ways to help combat property crime in the city,” says Chief Constable Adam Palmer, Vancouver Police Department. “This new predictive technology gives our front line officers 1 more tool to use to supplement our traditional policing methods.”

The new model is being implemented after the VPD ran a 6-month pilot study in 2016 that contributed to a substantial decrease in residential break-&-enters.

The pilot ran from April 1 to September 30, 2016. The number of residential break & enters during the test period was compared to the monthly average over the same period for the previous 4 years (2012 to 2015). The highest drop in property crime – 27% – was measured in June.

The new model provides data in 2-hour intervals for locations where residential & commercial break-&-enters are anticipated. The information is for 100-metre & 500-metre zones. Police resources can be dispatched to that area on foot or in patrol cars, to provide a visible presence to deter thieves.

The VPD’s new predictive policing model is built on GEODASH – an advanced machine-learning technology that was implemented by the VPD in 2015. A public version of GEODASH was introduced in December 2015 & is publicly available on It retroactively plots the location of crimes on a map to provide a general idea of crime trends to the public.

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