Cybercourt is a free web simulator in which you get to play as a role in a criminal court case. There are no different paths at the moment (everyone wins), and the only kind of court case you can play is criminal, but hopefully that will change soon! Look at the links below for information on courts:

people of the court: http://http://www.courts.ca.gov/documents/cab0609.pdf 

courtroom set up: http://i.infopls.com/images/ap178i1.gif

court vocabulary: http://www.uscourts.gov/glossary

civil vs criminal: http://criminal.findlaw.com/criminal-law-basics/the-differences-between-a-criminal-case-and-a-civil-case.html

happy cyber-judging!!!