Tracy Harpster has served the Moraine Police Division in Ohio since 1984. He has worked as street officer, undercover narcotics officer, Sergeant, Detective Sergeant, Lieutenant and Deputy Chief. In 2006, Deputy Chief Harpster achieved a Graduate degree from the University of Cincinnati where his Master’s Thesis examined the indicators of innocence and guilt of 9-1-1 homicide callers reporting the offense. The study defined and analyzed the indicators in order to assist homicide detectives gain insight into the offense, suggest offender probability, and explore pertinent issues during the interview and interrogation phases of the investigation.

Deputy Chief Harpster is a member of the Vidocq Society and has shared his research at homicide conferences across the country and used his research to investigate over 2500 homicides.