I think you underestimate the type of "spin" (for lack of better term) that goes on in the street? At least here in the Bronx, some of these people find ingenious arguments to get out of situations. Who is going to be better than understanding argument and the law, than someone who personally went through the process?

These people find ingenious short-term "quick-fix" arguments, a lot of that advantage can go away in the long term.