I like the way this board organizes forums into groups, and I have a suggestion for re-grouping a few of them. (In your copious free time.)
How about putting Cozies, Historical Mysteries, Genre Confusion and maybe Private Eyes in a Sub-genre group? Police Procedure, Weaponry, Medical Moments and the like apply to almost any mystery -- the cops get called even when PIs and cozy cats are the primary sleuths, for instance -- but these sub-genres each have their own conventions and challenges.
What do other people think?
Kathy W.