Dr. James Densley is an Associate Professor of Criminal Justice at Metropolitan State University, part of the Minnesota State system (USA). He is also co-founder of The Violence Project LLC. Densley has received global media attention for his work on street gangs, criminal networks, violence, and policing. He is the author of How Gangs Work (Palgrave Macmillan, 2013) and close to 40 peer-reviewed articles and book chapters. In addition to The Conversation, he has written for CNN, The Herald (Scotland), MinnPost, The StarTribune, The Sun (UK), and The Wall Street Journal, with reprints in The Chicago Tribune, LA Times, Salon, and other outlets.