Of cops and robbers and more

I've read four very different police novels this week, and their differences convince me that categories really wouldn't have helped me know if I'd enjoy them or not. They're all about cops. Two might be called police procedurals (but they're still radically different from each other). One's a romantic suspense (two genres in one already), and one's pretty close to horror. But one's a contemporary drama too, and all four look at relationships, and... well, you get the picture.

Anyway, here are...