How to get them? Easily.
Run the game as long as you desire and watch the bathroom. Bribe whoever you see. When you have bribed enough (two each round in this case) councillors in your town, reload the savegame you came from, they will appear just there, and play it through until the verdict.
Important: After each verdict, your account on bribes disappears and they behave like they've never seen you! If multiple verdicts are made on a day, you're screwed. And you don't bribe two at once but one for the one verdict and one for the other, you got to do this twice.