John Tarr, based in Helena, Montana, United States, is currently a Security Director at Montana Lottery, bringing experience from previous roles at Pearson Vue, State of Montana State Auditor and Us Army. John Tarr holds a 1983 - 1985 Master of Arts in Public Administration @ Central Michigan University. With a robust skill set that includes Private Investigations, Investigation, Enforcement, Criminal Investigations, Criminal Justice and more, John Tarr contributes valuable insights to the industry. John Tarr has 1 email on RocketReach.