Question: Fagin and the gang want Oliver back out of fear that he might tell about them. But there are some things I don't understand. 1. How long Oliver had been with Brownlow is unknown (Bill says it had been three days since he saw him during the "Who Will Buy" song), but since no police had arrived at the hideout during that time, surely they'd think Oliver hadn't said anything by now. 2. And even if they did think the above, why would they still think Oliver might say something later on?