Gregory Saville is adjunct professor in the National Security Program at the University of New Haven. He is director of Alternation LLC, an international crime prevention and public safety consultancy. He is an urban planner specializing in crime prevention through environmental design (CPTED), and has consulted at the Sydney 2000 Olympics, the Japan National Police, the RCMP, and the international Problem-Oriented Policing conference. He is a former police officer and for 10 years ran his own consulting firm, the first in Canada to specialize in CPTED and problem-oriented policing. He is a founder, and lifetime member, of the International CPTED Association. He is a judge for the Herman Goldstein Award for Excellence in Problem-Oriented Policing. In 2000 he co-created a method of field training to align with problem oriented policing called the Police Training Officer (PTO) model. In 2004 co-created a new program in Instructor Development in Problem Based Learning for the COPS Office. He is currently vice-president of the Police Society for Problem Based Learning.