Association of Prenatal and Childhood Blood Lead Concentrations with Criminal Arrests in Early Adulthood. John Paul Wright, Kim N. Dietrich, M. Douglas Ris, Richard W. Hornung, Stephanie D. Wessel, Bruce P. Lanphear, Mona Ho, Mary N. Rae. PLoS Med 5(5). May 27, 2008.  Conclusions: Prenatal and postnatal blood lead concentrations are associated with higher rates of total arrests and/or arrests for offenses involving violence. This is the first prospective study to demonstrate an association between developmental exposure to lead and adult criminal behavior. Full text free.