Certain classes of crimes, such as capital cases, are prosecuted and adjudicated in Federal courts. However, the Navajo Nation operates its own divisions of law enforcement via the Navajo Division of Public Safety, commonly referred to as the Navajo Nation Police (formerly Navajo Tribal Police). Law enforcement functions are also delegated to the Navajo Nation Department of Fish and Wildlife: Wildlife Law Enforcement and Animal Control Sections; Navajo Nation Forestry Law Enforcement Officers; and the Navajo Nation EPA Criminal Enforcement Section; and Navajo Nation Resource Enforcement (Navajo Rangers).