Dr. Brown has worked in the criminal justice field since 1990. He began his career in corporate security with an emphasis on embezzlement investigation and later moved into a focus of corporate security design, campus security assessment and design, security training, interrogation, and private investigation. Dr. Brown serves law enforcement nationally as a cold case consultant, with a primary focus on homicide investigation and missing persons cases. He has held numerous supervisory and administrative positions in his academic career, working with undergraduates as well as graduate students. He founded the Criminal Justice Assessment Board and also founded the International Journal of Justice Studies. Dr. Brown is a veteran of the U.S. Air Force.