The Blackstone's Police Investigators' Workbook 2013 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 Investiga
The only official study text, used alongside the Investigators' Manual 2014, for the National Investigators' Exam (NIE). Based on the bestselling Blackstone's Police Manuals, it provides all legal inf
The Blackstone's Police Investigators' Manual and Workbook 2013 are the only official study texts for the National Investigators' Exam (NIE) which is taken as part of Phase 1 of the Initial Crime Inve
