Id Url Resource class Title Description Source https://policing.umhistorylabs.lsa.umich.edu/s/crackdowndetroit/item/6189 Ronald Martin Excerpt from 1973 Congressional Hearing Ronald H. Martin Testimony, “Street Crime in America: The Police Response,” April 12, 1973, Hearings before the Select Committee on Crime, House of Representatives (Washington: GPO, 1973)