You don't have to switch to the legal side for a better roleplay you know. You could do good roleplay being a criminal as well!
These days criminals have, unfortunately, become something like local thugs.
The title 'criminal' is for those kind of people, those deadly people who you dare not mess with. Those people, whose words make you feel uneasy! And that unfortunately is not achieved by just killing. Watch The Dark Knight. Joker deserves to be called a criminal. His words, his actions.
I would really love to see an actually roleplaying criminals. I mean the kind of guy, who would be standing at LSPD, with SWAT surrounding him, and aiming him, as he had planted 10 bombs all over the state. Yet when the Captain comes forward to talk to him, he points to his cigar and tells him to wait till he finishes it.
