Japan has one of the most famous mafias in the world, and yet it seems like there's little actual anime that deals with crime.
Things I've seen: Baccano, Lupin The 3rd, Psycho-Pass, GitS:SAC, Jormungand, Gunsmith Cats.
I'm also fine with manga too. Just want some good, exciting stuff that is centered around heists, dealing, fraud, etc.