The Police Commissioner on the island, Patterson was responsible for assigning Poole to the island on a long-term basis, but has often demonstrated greater concern with political appearances rather than solving crimes, such as ordering Poole to disregard a man from the investigation despite him being the most obvious suspect, although he frequently accepts Poole's findings when Poole can provide conclusive evidence. He is also willing to be manipulative; deliberately waiting until the last minute to inform Poole that he could return to London and then subtly interfering with Poole's efforts to do so, as he wishes to keep Poole (and his high crime investigation success rate) on the Island.