Id Url Resource class Title Description Source https://policing.umhistorylabs.lsa.umich.edu/s/crackdowndetroit/item/4246 Letter from Mahaffey to Chairman Douglas Letter from Councilwoman Mahaffey about Lie Detector Policy, (Jan. 10, 1980), Folder 11, Box 39, Maryann Mahaffey Papers, Burton Historical Collection, Detroit Public Library