Blue Rose Cases are the designation or code word for some FBI cases under Gordon Cole's leadership. Gordon Cole always sends his top Special Agents, such as Chester Desmond and Dale Cooper, to inspect and attempt to solve such cases. The Blue Rose is referenced as Gordon Cole's 'Cousin Lil' is wearing one when briefing Special Agents Chester Desmond and Sam Stanley immediately prior to their trip to Deer Meadow, Oregon to investigate Teresa Banks' murder. Although Chet Desmond and Dale Cooper had the chance to explain the Blue Rose to Sam Stanley, it is never explained.