It's not really valid anywhere in the city when it comes to violent crimes or some crimes in progress. Violent crimes are dispatched typically immediately. An officer is usually already in route even while the 911 call taker is still on the phone with the caller. Its why the 911 call takers always ask for location and reason for calling first, and then ask a bunch of questions afterwards. As soon as they find out what the crime is and the location that info is pushed to the dispatcher, who alerts officers and sends them to the location. Additional info is pushed through as the 911 call taker obtains it. Property crimes and other quality of life type crimes are pushed to the back of the line.