In this short scene, we learn that the police have captured both Roulet and Darnay, and that they plan to seize both of them as well. Roulet's head has been shot, and he's been taken to the police station, where he'll be tortured and tried for his part in the murder of Darnay. He's going to rot in jail, the police say, because he was a member of the mob that wanted to kill Darnay