books.google.com - Real crime scene investigation is vastly more complicated, arduous, bizarre, and fascinating than TV's streamlined versions. Most people who work actual investigations will tell you that the science never lies -- but people can. They may also contaminate evidence, or not know what to look for...http://books.google.com/books/about/Every_Contact_Leaves_a_Trace.html?id=XgScsbrXH_wC&utm_source=gb-gplus-shareEvery Contact Leaves a Trace
