A terrible image of a jail, plz feel free to change it.
Jail is a place that lawyers can send you to if your bills exeeced $2,500. You will be teleported to a small, dark cell underground with some undead lawyers and a skeleton spawner. All of your stuff will be taken away, but you can take it back later.
The Great escape In order to get out, you will need to employ a hit and run tactic if you want to get your stuff back. a suggested escape method is this: Take the torch from the room you were teleported to, then run to the skeleton spawner and place it on top of it. This will prevent futher skeletons from spawning. Then run round grabbing your stuff from the chests until you are ready to take on the undead lawyers from hell >=D then go to the iron door blocking your exit. smash the block underneath it to get through, and climb up the stairs till you come to mud. dig through this and you are free! and you will have learnt not to beat up lawyers (proboably.)