Looking for book on Post-WWII Germany

I'm sure there are thousands of them, but I'm specifically looking for one that deals with keeping the law and order in Germany during the allied occupation. Basically I want to know who did you turn to if you had to report a crime and similar problems during this chaotic period.

This review seems to be the sort of thing: http://www.wsws.org/articles/2001/dec2001/bka-d08.shtml

This article by Dulles is also of interest: http://tinyurl.com/reou

Do you want a fictional or a non-fictional book?

A Woman in Berlin by (Anonymous) might be something in that direction. It takes place in the months surrounding the Red Army's occupation of Berlin, and what happens when society crumbles completely... very chaotic, very stark, very chilling.