A muse for crime fiction?

I was wondering about it tonight. If crime fiction writers could invoke a muse and if so, which one? I know I asked the same question about blogging a while ago. But it is more fitting for crime fiction: the genre may be modern in its guise, it is in essence an ancient one: there are elements of crime fiction in many of Shakespeare's tragedies, but in such an early work as Oedipus Rex. I guess it would depend of the specific tone of the story. Calliope, Melpomene (maybe the most obvious choice) heck, even Thalia and Clio could be helpful. What is your idea on it? If such question interests anyone else than me, that is.