My friend's girlfriend is a public defender and has dealt with many of them.
If anyone here has not heard of them or knows very little, I would suggest doing some investigating. I don't have respect for them (mainly because the overwhelming majority don't have a clue of the legal system and obligations they have as a citizen yet argue obscure laws), but it will provide some entertainment and a very strange but interesting perspective.
Check out youtube for some interesting court room footage, such as this man who apparently controls the court room because a judge left.