Blackstone's Police Investigators' Workbook 2008 - Blackstone's Police Manuals Author:Paul Connor, David Pinfield, Neil Taylor, Julian Chapman The Blackstone's Police Investigators' Workbook 2008 is the official accompanying study text for the National Investigator's Exam (NIE) which is taken as part of Phase 1 of the Initial Crime Investigators' Development Program. — Based on the content of the Investigator's Manual, the book has been completely revised for 2007-200... more »8. It contains many practical excercises, case studies and multiple choice questions to help students prepare for the NIE.« less