William O'Donohue

William O'Donohu e is a licensed clinical psychologist and professor of clinical psychology at the University of Nevada, Reno. For the past 29 years, he has directed a free psychological treatment center for sexual assault victims. His publications include over 90 books, 300 peer-reviewed papers, and book chapters. He has served on the American Psychiatric Association's advisory committee to revise the diagnosis of pedophilia for the DSM5. According to Google Scholar, his citation number is over 16,000.

Ray Bull is professor of Criminal Investigation at the University of Derby in the UK. He has published several books and over 250 peer-reviewed papers and book chapters. He is a "Distinguished Member" of the American Psychology-Law Society. He has served as president of the European Association of Psychology and Law. In 2012 he was awarded the first Honorary Life-time Membership of the International Investigative Interviewing Research Group, and is an Honorary Fellow of the British Psychological Society.