Dempsey, John S.

John S. Dempsey is Professor Emeritus of Criminal Justice at State University of New York (SUNY), Suffolk County Community College. He also teaches criminal justice and public administration courses at SUNY, Empire State College, where he serves as a mentor for ranking members of law enforcement and criminal justice agencies. Mr. Dempsey was a member of the New York City Police Department (NYPD) from 1964 until 1988, serving as a police officer, detective, sergeant, lieutenant and captain. He focused on both patrol and investigations. Mr. Dempsey received seven citations for meritorious and ex...