9-1-1: What's Your Emergency?


9-1-1 Tips

When a Mesa resident has an emergency, the city's computer-aided dispatch program helps 9-1-1 Operators and Dispatchers send help quickly and efficiently.

The Dispatch Process:
  1. A citizen dials 9-1-1 in an emergency situation.
  2. The caller's telephone provider automatically routes the call to the appropriate public safety agency.
  3. A 9-1-1 Operator receives the call. If the call is from a non-cellular phone, the caller's name, address and telephone number appear on a computer screen. The 9-1-1 Operator confirms that information, asks the caller about the emergency and assigns it a priority. While questioning the caller, the Operator sends the information via computer to a police or fire Dispatcher.
  4. The Dispatcher receives the information about the emergency and confirms the priority rating assigned by the 9-1-1 Operator. In Mesa, the highest priority, "E," is for life-threatening situations . The lowest priority, "5," is for report calls.
  5. Police vehicles are equipped with Global Positioning System (GPS) technology. Their locations are transmitted to the dispatch and 9-1-1 computers every 30 seconds.
  6. Location information then is transmitted to laptops in the vehicles. Each unit, represented by an icon, shows on the computer much like a tiny game piece: Police cars, bicycles, helicopters, and K-9 are represented. The icons change color depending on their status.
  7. When police units respond to an emergency, the address of the caller is displayed on a computer map in the communications center. The computer suggests the nearest vehicle. The Dispatcher, who can override the suggestion or go with it, assigns the call with the click of a mouse.
  8. The police unit receiving a call will see the address on a laptop screen. With a touch to the screen, the officer can call up a map showing the most direct route to the caller.
  9. Because house numbers generally are useless from the air, helicopters can use the system to get information such as how many houses from the corner an address is.
  10. When the emergency has been taken care of, the police officer can clear the scene via the laptop. The vehicle icon turns to dark blue on the map, and the unit is available for new calls.


Mesa Police Department
PO Box 1466
Mesa, AZ 85211



Non-Emergency Request an Officer/Report Crime

480-644-2211, option 2

Non-Emergency Main

480-644-2211 (you will hear a menu to choose from)