144 12. Findings Relevant to Disparate Impacts of Crime and Crime-Control In his volume entitled Rlack Baltimore: A New Theory of Community; Dr. Harold A. McDougall pointed out that until 1817, blacks convicted of petty crimes could be sold as slaves outside the state, "sold South" as it were. He also pointed out that the criminal justice system and the penitentiary system continued as a means of repressing blacks, free or otherwise. In fact, following the 1831 Nat Turner rebellion in Virginia, free blacks were perceived by many Maryland plantation owners as an especial threat and as abuses against them mounted, "white only" testimony laws prevented many of these Marylanders from seeking redress against their abusers in court. As from the 1840s until the Civil War, slave traders, encouraged by these developments sold many blacks "South" (including free blacks who had been imprisoned or simply abducted), it can hardly be doubted that African American distrust of the so-called "criminal justice" system increased. Significantly, many of these African American waiting to be sold "South" were incarcerated in slave jails of which Baltimore had a number. In The Sun of June 20, 1999, Scott Shane wrote as follows: