Criminal Investigation: In Search of the Truth has been written for Police Foundations or Law and Security Administration courses in Ontario colleges.

This text will be enthusiastically welcomed by instructors and students taking courses in Interviewing and Investigation or Investigation and Evidence.

It is an authentic text full of real-life examples, that brings together a plethora of materials in a clear and very readable style with a concise format. 

Lessons are structured in a building-block fashion that allows students to utilize the knowledge learned in previous lessons as they progress throughout the text. The text establishes an introductory framework dealing with the basic investigative function and matters of evidence. The remaining chapters then mirror exactly what occurs during an actual investigation—interviewing victims and witnesses, interrogating suspects,  examining crime scenes, collecting and handling evidence, managing complex issues such as victim and media relations—and culminates in preparing and presenting successful investigations in court. The entire textbook emphasizes the need for a methodical and systematic approach and promotes an ethical and interdisciplinary methodology of investigating criminal and quasi-criminal occurrences.

Written by Bill Van Allen, a retired police officer and detective with 31 years experience in the field - Criminal Investigations Branch, OPP - this book is the most current, authoritative and well-written text available.