Chief of Patrol - Chief of Patrol Nicholas Mango holds a Master of Science degree in Criminal Justice and is a graduate of the FBI National Academy and the PERF Senior Management Institute for Police. He joined the Suffolk County Police Department in 1973. He has been the Assistant Chief of Detectives, Assistant Chief of Patrol, the Deputy Chief of Internal Affairs, the Deputy Chief of Patrol and Commanding Officer of the 6th Precinct, Marine Bureau, Juvenile and Missing Persons Section, and the Narcotics Enforcement Team.