Patrick Crough Retired Investigator SergeantRetired investigator sergeant Patrick Crough served thirty years with the Monroe County Sheriff 's Office. After serving in the Marine Unit and on the Road Patrol, he worked assignments in the Violent Warrant Squad and the Vice and Narcotics Unit as n undercover officer. When assigned to the Major Crimes Unit, he investigated some of the most heinous crimes committed in the Greater Rochester area for over two decades. He also served as a hostage negotiator on the Monroe County Sheriff 's Hostage Rescue Team. In May 2009, Patrick Crough authored and published The Serpents among Us: How to Protect Your Children from Sexual Predators; A Police Investigator's Perspective, to educate parents about the manipulative techniques child predators utilize to gain access to a child they are targeting. When Patrick Crough retired from the Monroe County Sheriff 's Office in April 2010, he held the rank of investigator sergeant, in charge of the Major Crimes Unit and commander of the Hostage Rescue Team. He currently teaches basic and advanced interrogation techniques to other police officers and detectives for BowMac Law Enforcement Consultants and serves as president of Millstone Justice Children's Advocacy Organization, a nonprofit corporation that is dedicated to teaching parents how to keep their children safe from child predators. Read More Read Less