Prisons & Jails - 6-14-12
(Jails) "Jails, which are also primarily local in nature, detain not only persons arrested for local offenses, but also virtually all persons charged and awaiting trial under State law. Local jails may also house Federal detainees and State 'prison-ready' inmates — convicted and sentenced persons whose transfer to State prison is delayed by overcrowding or other reasons. In most such cases, State or Federal governments pay fees to the local communities that house these prisoners."
"Use and Management of Criminal History Record Information: A Comprehensive Report, Bureau of Justice Statistics (Washington, DC: U.S. Department of Justice, December 2001), p. 8.