Id Url Resource class Title Description Source https://policing.umhistorylabs.lsa.umich.edu/s/detroitunderfire/item/985 Gun confiscations 1971-1972 A graph depicting the data on gun confiscations in 1970, 1971, and 1972, reported by DPD Data from: Detroit Police Department, "Statistics on crime under STRESS," 1972, S.T.R.E.S.S., Box 71, Detroit Urban League, Bentley Historical Library, University of Michigan