This item, a follow-on to an entry in yesterday's report, offers more information on the WSU Police Department's new dispatch equipment. The department has transferred computer-assisted dispatch operations from an existing WSU computer to the city of Detroit 's new CAD system. The Detroit system is used cooperatively by the city's police, fire and EMS services. Wayne State police patrol about four square miles of midtown Detroit , on campus and nearby areas, where they respond to 911 emergencies and enforce traffic laws.