Gregory Yee Mark, D. Crim. is a Professor in the Department of Ethnic Studies at California State University, Sacramento.  He received his Doctorate in Criminology from the University of California, Berkeley.  Dr. Mark is the Co-Principal Investigator and Director of the Centers for Disease Control (CDC) funded Asian/Pacific Islander Youth Violence Prevention Center at the University of Hawai’i at Manoa and Principal Investigator/Director of the National Coordinating Center for the Academic Centers for Excellence on Youth Violence Prevention.  Dr. Mark’s research interests are community mobilization, youth gangs, youth violence prevention, Chinese American communities, and United States drug legislation.