Steve Frosdick
is Principal Lecturer at the Institute of Criminal Justice Studies at the University of Portsmouth, where he teaches courses on safety and security at sports grounds. A former police officer, he has been Director of IWI Associates since 1996, and is a founder member of the Football Safety Officers' Association.
Peter Marsh is a director of the Social Issues Research Centre and MCM Research, and has studied football hooliganism since the 1970s. He was previously co-director of the Contemporary Violence Research Centre at the University of Oxford, and lectured in psychology at Oxford Brookes University.