Blackstone's Police Investigators' Q&a 2025, Paperback by Connor, Paul, ISBN 0198928505, ISBN-13 9780198928508, Brand New, Free shipping in the US Designed to test trainee investigators studying for the National Investigators' Examination (NIE), this book presents over 1,000 multiple-choice questions, following the same style as the exam questions. All answers provide explanations and references to the Blackstone's Police Investigators' Manual 2025 for further study and clarification.
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