Id Url Resource class Title Description Source https://policing.umhistorylabs.lsa.umich.edu/s/crackdowndetroit/item/2981 dctype:Image Detroit 911 Operator Police Dept. Emergency Center. 911 operators "Police Dept. Emergency Center. 911 operators," 1977, Detroit News Photographic Collection, Walter P. Reuther Library, Archives of Labor and Urban Affairs, https://digital.library.wayne.edu/item/wayne:vmc45299