GNN Detective / Professional Investigation and Consultancy Services Private Detective Agency has been established by Gönen KARAKAYA, who spent 17 years of his 27 years of service in the law enforcement agency in Homicide Departments of Izmir and Istanbul, and made investigations on Homicide, Suicide and Unexpected Death Cases, and worked as an Intelligence Officer and Security Expert for the investigation of Murders by Unknown Assailants and Missing Persons on some TV channels after retirement, to provide you the most Reliable service with its staff consisting of experts.