What?! Jail and prison are synonyms. There is no real difference.
http://www.oxforddictionaries.com/definition/english/prison - A building to which people are legally committed as a punishment for a crime or while awaiting trial.
http://www.oxforddictionaries.com/definition/english/jail - A place for the confinement of people accused or convicted of a crime.
Both refer to being detained both before and after conviction.
Jails are also usually less well funded, older, and generally less pleasant (oh yeah) than are prisons.
A concise summary:
http://sheriff.org/faqs/displayfaq.cfm?id=4f892698-5c5d-40f8...
What?! Jail and prison are synonyms. There is no real difference.
http://www.oxforddictionaries.com/definition/english/prison - A building to which people are legally committed as a punishment for a crime or while awaiting trial.
http://www.oxforddictionaries.com/definition/english/jail - A place for the confinement of people accused or convicted of a crime.
Both refer to being detained both before and after conviction.