One of the most prominent reasons for the large scale acquittals is found to be the lack of scientific information on investigation of crimes. This book discusses how best a crime may be investigated systematically, methodologically and scientifically. Every step during a crime investigation is meticulously treated and case laws are provided to make the contents very informative. Professionalism in police work is what is highly priced now and the book is all about professional police work during the investigation of crimes. The laws, procedures, criminal liability, police science,' criminal psychology, forensic science-every aspect of crime investigation is dealt with by an expert in criminology and forensic science. Judges, lawyers, investigators, students of criminology and justice administration and even private detectives and laymen will find the book highly useful.