Chris Callaway is a Special Agent in the Major Crimes Unit of the Iowa Division of Criminal Investigation. Since 2004, Chris has investigated homicides, cold cases, sexual assaults, bank robberies and other felony level crimes. A graduate of the University of Iowa and a twelve-year veteran of the Iowa State Patrol, Chris has blended his criminal and drug interdiction experience into the Cognitive Interviewing component of The CTK Group’s Fundamental and Advanced Courses. He provides patrol officers and investigators with a legally-sound, research-based game plan for interviewing victims, witnesses, and suspects.
After graduating from the University of Iowa College of Law, Jon Turbett began his law enforcement career as a Special Agent with the Iowa Division of Criminal Investigation assigned to the Gaming Unit. After five years, he was reassigned to the Major Crimes Unit, where he has worked since 2005. Jon currently investigates a significant number of felony level offenses, including homicides, human trafficking, fraud, and sex crimes. He has presented at the International Law Enforcement Educators and Trainers Association Conference, the Midwest Gang Investigators Conference, and the Conference on Crimes against Women. Jon oversees the legal component of The CTK Group’s Interview and Interrogation courses.
Mike Krapfl is a Special Agent in Charge in the Major Crimes Unit with the Iowa Division of Criminal Investigation, where he oversees agents working homicides, robberies, officer-involved shootings, and other felony offenses. Mike served as an Agent in the Major Crimes Unit for 14 years and previously worked as a patrol officer and investigator for eight years with a municipal police department. Mike holds a Master’s Degree in Public Policy and a BA in Criminology from the University of Northern Iowa and instructed for 12 years as a member of the Criminal Justice faculty at the University of Dubuque. Mike is a member of the International Law Enforcement Educators and Trainers Association and presents at state and national law enforcement conferences.