A partly enclosed coastal body of water in which river water is mixed with seawater is called an estuary. An estuary is thus defined by salinity rather than geography. Many coastal features designated by other names are in fact estuaries (for instance, Chesapeake Bay). Some of the oldest continuous civilizations have flourished in estuarine environments (for example, the Tigris and Euphrates rivers, the Nile delta, and the Ganges delta).
âFederal crimesâ refer specifically to offenses that violate U.S. federal laws. They are investigated by federal law enforcement and prosecuted by United States attorneys in federal courts with federal judges.
Federal Bureau of Prisons. Federal Inmates. Our inmate population consists of people awaiting trial for violating federal laws or those who have already been convicted of committing a federal crime. Due to a law passed in 1997, we also confine offenders who have been convicted of a felony in the District of Columbia. Under certain agreements and special circumstances, we may also house state inmates.