Emma Alleyne

Emma Alleyne – studies the psychological characteristics of street gang members.
University of Kent, Canterbury, UK

Jan Dirk de Jong

Jan Dirk de Jong – with interests in group dynamics and gang intervention.
University of Applied Science, Leiden, Netherlands

Finn-Aage Esbensen

Finn-Aage Esbensen – is interested in the causes and correlates of youth violence and the role of youth gangs on adolescents; evaluation of gang prevention efforts.
University of Missouri-St. Louis, USA

Cheryl Maxson

Cheryl Maxson – methods for studying gangs; patterns of gang activity in an international context; efficacy of programs and policies to reduce gang activity.
University of California, Irvine, USA

Chris Melde

Chris Melde – studies the impact of gang membership on adolescent development and the efficacy of gang prevention and intervention programs.
Michigan State University, USA

Elke Van Hellemont

Elke Van Hellemont – with interests in the ethnographic study of gangs and urban youth violence.
University of Leuven, Belgium

Frank Weerman

Frank Weerman – interests include the role of peers in delinquent behavior, social networks, and co-offending
Netherlands Institute for the Study of Crime and Law Enforcement, Netherlands