Great suggestion! Unfortunately, the Town of Oakville is not the owner of this data. Halton Regional Police Service: http://www.haltonpolice.ca/CrimeFiles/CrimeMapping/Pages/default.aspx
Chris Herbert commented
Police incidents are being logged and mapped on this site here: https://www.crimereports.com/agency/Halton
Some police information can be found in the Halton Police Crime Mapping Database although it does not contain information of all police calls. A machine readable feed (xml?) would be a nice improvement.