The City of Rialto Police Department is committed to serve and protect! CitySourced is a real time mobile application available to Rialto citizens for downloading onto their mobile devices. CitySourced is a simple application to operate, yet intuitive, empowering Rialto residents to collaborate with law enforcement by identifying and reporting public safety issues in real time for a swift resolution. Mapping API provided by ArcGIS Runtime SDK for Windows Phone. Map Data Copyright: © 2012 Microsoft Corporation and its data suppliers.