DR. MARK TOTTEN's research focuses on gangs, sexual exploitation and trafficking, crime prevention, mental health, child maltreatment and family violence, bullying and harassment, corrections and policing, and gender identity. He has worked on eight major studies in this area during the past fifteen years, in research funded by public agencies like the Department of Justice Canada and the National Crime Prevention Centre. Many of his projects involve partnerships with Aboriginal and ethno-racial communities.

In 2011-2012, he is collaborating with groups in Ontario and Western Canada in the development and evaluation of multi-year gang prevention, intervention, and suppression strategies.

Mark Totten is past Director of Research at the Youth Services Bureau of Ottawa (1987-2007) and has worked with high-risk children, youth, adults, and families for over thirty years. A well-known expert witness for both Crown and Defence Counsel on gangs and criminal subculture, he has written many books, academic articles, and government reports, including Guys, Gangs and Girlfriend Abuse (2000), When Children Kill: A Social-Psychological Study on Youth Homicide (2002), and Promising Practices for Addressing Youth Involvement in Gangs (2008).