This extensively revised second edition covers the basic concepts and principles underlying the logic of proof; the uses and dangers of story-telling; probabilities and proof; the chart method and other methods of analyzing and ordering evidence. They are utilized in fact-investigation, preparing for trial, and in connection with other important decisions in legal processes and criminal investigation and intelligence analysis. Most of the chapters in the new edition have been rewritten; the treatment of fact investigation, probabilities and narrative has been extended; and new examples and exercises have been added.