Every crime leaves traces. The job of a forensic scientist is to find and solve them, and to do so, professionals have tools and techniques at their disposal that help expose even the most cunning, cruel, and devious criminals. This book offers a step-by-step examination of 50 'perfect' crimes, widely covered in the international press and solved solely thanks to the experience, skill, and talent of forensic scientists. You'll learn fascinating details about fingerprints, tool marks, and various traces, DNA, blood spatter, ballistics, poisons and drugs, as well as handwriting and voice analysis. Each chapter examines various types of evidence and the methods used to discover and analyze clues. The authors describe the typical workday of forensic science officers. 'Hands on or Hands on' is more than just an introduction to forensic science: it reads like a gripping detective story, and numerous documentary illustrations enhance the vivid and comprehensive understanding of the information.