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Practical Handbook for Professional Investigators is written by Rory J. McMahon CLI and published by CRC Press. It's available with International Standard Book Number or ISBN identification 1420006401 (ISBN 10) and 9781420006407 (ISBN 13).
Since the publication of the first edition of this volume, many new certification programs have begun in private and community colleges, including a course designed by the author for Boston University and a specialty certification by the U.S. Association for Professional Investigators. Reflecting the surge in interest into the investigative fi