Even though Farlow had reassured him that he wouldn't be arrested, Jason wasn't a fool, and he knew that there were other members of the council with more power than even Farlow. If those members decided that Jason needed to be arrested, then Farlow might be overpowered. No, Jason needed to secure an escape route in case things went south. Jason trusted some members of the council, but he still couldn't trust the council itself until he was sure he had at least half the council on his side, no matter what.
