No. Shut up.
But the Thieves Guild could benifit greatly for some more Oceans Eleven style missions where we have to smooth talk people to let us past or blend in with the crowd.
OBJECTION!!!!!!You don't -touch- my thieves guild missions, kid! I've been robbing jewelry stores and alchemists since before you were in diapers! If there's one thing I know... it's that... erm...
... what was I saying again?
I voted yes.
I think it would be interesting to have a legal system in Skyrim. Even if that -was- just a local Lord with a couple judiciaries standing up on a pillar hearing your case. It's not at all outside of the lore, as was previously mentioned the Imperial Court operated in a similar enough way (even though you barely ever got to see it).
Meh.
It could be fun. It won't happen... but if someone made a mod. I'd get it.