From John Hewitt’s writing blog:
It occurred to me today that having a person use writing techniques to solve crimes would be a fun show. Of course, many shows have had “mystery writers” who also solve crimes, such as Murder She Wrote, but none of them actually use literary techniques to solve the crimes. The writer would identify moments of foreshadowing and plot points. They would also be sure to remind people when it is too soon to solve the crime. That can only be done in the last ten minutes.
Yes.
It’d be damn hard to write for that show, but the end result would be awesome.