Leon E. Pettiway (Ph.D., University of Wisconsin, Milwaukee), the Venerable Lobzang Dorje, is Professor Emeritus at Indiana University, Bloomington. He has conducted research that integrates geographical and criminological theories to explain crime patterns in urban areas. In that regard, he has published articles on the impact of race and ghettoization on patterns of crime participation, the role of environmental and individual factors in arson, the relationship between an individual's drug use and criminal participation in the formation of crime partnerships, and the criminal decision-making process of addicts and nonusers in light of various environmental cues.