With its clear explanations, this 400 page entertaining book is intended as an introductory guide and reference to forensic techniques for Mystery fans, arm chair sleuths, front-line police officers, criminal attorneys, journalists, and crime authors. This encyclopedic book is a must read for any true crime aficionado.   Parker and Dr. Vronsky provides real cold case examples where forensic science was key in, not only identifying the guilty, but also in clearing the innocent and freeing the wrongly convicted. Forensic Facts and Cold Cases - thanks to DNA analysis and new techniques, many cases once thought hopeless are being resolved.   "A first-class introduction and secular guide to the complexities and history of forensic science." -- BOOKLIST