Blackstone's Police Investigators' Manual and Workbook 2026 are comprehensive study and reference guides for the National Investigators' Exam (NIE), which is taken as part of Phase 1 of the Initial Crime Investigators' Development Programme. It is the most comprehensive and effective package for studying for the NIE, providing the complete 2026 syllabus, and practical exercises and multiple-choice questions to test your knowledge.

Based on the bestselling Blackstone's Police Manuals, Blackstone's Police Investigators' Manual 2026 provides all the legal information which is relevant to your...