Captain Dean T. Olson formerly commanded the Criminal Investigation Bureau of an American law enforcement agency, including the agency’s participation in the regional Federal Bureau of Investigation, Joint Terrorism Task Force. He retired in 2008 after 30 years of law enforcement service. He earned a BS in Criminal Justice and a Masters Degree in Public Administration (MPA) from the University of Nebraska at Omaha. He also earned a Master of Arts Degree in Security Studies from the Naval Postgraduate School, Center for Homeland Defense and Security in Monterey, CA. He is a graduate of the 193rd Session of the FBI National Academy and is adjunct professor of Criminal Justice for several Midwestern universities. He has travelled extensively in the Middle East and Muslim lands and he is the author of "Perfect Enemy: The Law Enforcement Manual of Islamist Terrorism," (October 2009) Charles C. Thomas Publishing, Springfield, IL. He is currently completing his second book, "Tactical Counterterrorism: The Law Enforcement Manual of Terrorism Prevention" scheduled for publication October 2011 by Charles C. Thomas Publishing. His areas of expertise include terrorism financing, risk management in suicide/homicide terrorism prevention, agroterrorism, threat assessment of domestic radical groups at risk of escalation to terrorism and Islamist terrorism.