L. Thomas Winfree, Jr., received his Ph.D. degree (sociology) from the University of Montana in 1976. Besides his current position as Professor of Criminal Justice at New Mexico State University, he has held academic appointments at the University of New Mexico, East Texas State University (now Texas A and M University, Commerce), and Louisiana State University. Winfree has authored or co-authored over 70 refereed journal articles, 20-plus book chapters, and numerous reports. He is co-author, with Howard Abadinsky, of UNDERSTANDING CRIME, Second Edition (Wadsworth, 2003). Included among Winfree's research interests are youth gangs, police socialization, and contemporary justice system responses to drug and alcohol problems.