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Criminal Major Case Management: Persons of Interest Priority Assessment Tool PDF

258 Pages·2012·3.43 MB·English
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K14316_cover.fhmx 2/7/12 1:37 PM Page 1 C M Y CM MY CY CMY K FORENSICS & CRIMINAL JUSTICE CRIMINAL MAJOR CASE MANAGEMENT Persons of Interest Priority Assessment Tool (POIPAT) In high-profile investigations, when the suspect pool is very large, resources are unduly strained unless the pool can be narrowed down to the most likely offenders. The Persons of Interest Priority Assessment Tool (POIPAT) provides an objective and consistent means of establishing a priority ranking of suspects or persons of interest in any investigation. Created and used correctly, the tool can determine if any suspect/POI should be considered a high, medium, or low investigative priority, saving time and resources and potentially saving additional victims. Criminal Major Case Management: Persons of Interest Priority Assessment Tool (POIPAT) describes how to set up a POIPAT system for any investigation where there are numerous POIs and limited resources. Using the unsolved Jack the Ripper murders as a sample case study, it walks readers through the steps of creating and using the POIPAT system. The book begins by providing an overview of offender profiling and the basic considerations for developing elements for a POIPAT. It explains the Element Weighting Chart (EWC) and discusses how many points each element should be weighted based on its level of importance. The author describes how to determine what point totals constitute a high, medium, or low priority so that detectives can know how best to direct their resources. He also discusses tracking how POIs are eliminated through an elimination coding system, thereby avoiding potential duplication and allowing investigators to home in on the person most likely to have committed the crime. Finally, the book uses the POIPAT system to draw conclusions about some of the best-known suspects who were most likely to have been the real Jack the Ripper. Seeing how the technique is used in a real case, investigators will discover how to effectively create unique POIPATs for their own cases. The included CD-ROM contains a template that can be modified for any type of investigation and a number of additional tools and guides. Includes K14316 Companion CD-ROM 6000 Broken Sound Parkway, NW Suite 300, Boca Raton, FL 33487 711 Third Avenue an informa business New York, NY 10017 w w w. c rc p r e s s . c o m 2 Park Square, Milton Park Abingdon, Oxon OX14 4RN, UK www. c r c p r e s s . c om Composite Wilson CRIMINAL MAJOR CASE MANAGEMENT CRIMINAL MAJOR CASE MANAGEMENT Persons of Interest Priority Assessment Tool (POIPAT) This page intentionally left blank CRIMINAL MAJOR CASE MANAGEMENT Persons of Interest Priority Assessment Tool (POIPAT) Larry Wilson Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Group, an informa business Inspector Larry Wilson of the Royal Canadian Mounted Police. CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 © 2012 Her Majesty the Queen in rights of Canada, 2012, as represented by the Royal Canadian Mounted Police. CRC Press is an imprint of Taylor & Francis Group, an Informa business No claim to original U.S. Government works Version Date: 20120215 International Standard Book Number-13: 978-1-4398-9862-8 (eBook - PDF) This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. The authors and publishers have attempted to trace the copyright holders of all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint. Except as permitted under U.S. Copyright Law, no part of this book may be reprinted, reproduced, transmit- ted, or utilized in any form by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying, microfilming, and recording, or in any information storage or retrieval system, without written permission from the publishers. For permission to photocopy or use material electronically from this work, please access www.copyright. com (http://www.copyright.com/) or contact the Copyright Clearance Center, Inc. (CCC), 222 Rosewood Drive, Danvers, MA 01923, 978-750-8400. CCC is a not-for-profit organization that provides licenses and registration for a variety of users. For organizations that have been granted a photocopy license by the CCC, a separate system of payment has been arranged. Trademark Notice: Product or corporate names may be trademarks or registered trademarks, and are used only for identification and explanation without intent to infringe. Visit the Taylor & Francis Web site at http://www.taylorandfrancis.com and the CRC Press Web site at http://www.crcpress.com Contents CD Contents xi Preface xiii Acknowledgements xv About the Author xvii Section I The POIPAT SySTem: InTrODuCTIOn TO The POIPAT SySTem 1 Introduction 3 Applying the POIPAT to Cold Cases 4 History of POIPAT 5 Te Process 7 New POIs 8 Previously Identifed POIs 9 Investigators 9 POI versus Suspect 10 Exceptions to Use of POIPAT 11 Accuracy/Reliability of POIPAT 11 Who Should Create the POIPAT? 12 Who Should Assess POIs Using the POIPAT? 13 POIPAT Instructional Assessment Guide 13 POIPAT Development Tools 14 Endnote 14 2 Profling and the POIPAT 15 Insp. pIerre nezan Introduction 15 History of Profling 16 Organized versus Disorganized 17 Importance of Fantasy (Ritual) versus MO 21 Conclusion 25 Endnotes 25 v vi Contents 3 POIPAT element Development Basic rules 27 Introduction 27 Conclusions about the Ofender Based on Inferences 27 Sources of POIPAT Elements 28 Number of Elements 29 Objective versus Subjective Elements 30 True or False Elements 31 Salient Elements 32 4 POIPAT element Weighting Guide 33 Introduction 3 Element Weighting Chart (EWC) 33 Textual Importance Scale 34 Unimportant 35 Less Important 35 Important 36 Very Important 37 Salient Elements 37 Other Factors Afecting Element Weighting 38 Availability/Accessibility of Information 38 Frequency/Uniqueness of the Element in the Population 39 Subjectivity of the Information 40 Reliability of Source 40 Endnote 41 5 establishing Priority Levels’ Points ranges 43 Introduction 43 Identify and Score POIs 43 Doing the Calculations 44 Plugging in the Names with POIPAT Scores 45 Identifying Priority Ranges 46 Conclusion 47 6 Standard POIPAT elements Library 49 Introduction 49 Te Heading 49 Geography 50 Ofender’s Residence 51 Ofender’s Comfort Zone(s) 52 Physical Description 54 Contents vii Age 56 Gender 56 Race/Ethnicity/Skin Colour 57 Acent 58 Speech Characteristics 59 Lifestyle 59 Marital Status 60 Employment 61 Education 62 Criminal History 63 Links to Victim(s) 64 Links to Victim(s) in Investigations with Numerous Victims 66 Availability of POI 66 Availability of POI in Investigations with Numerous Victims 68 Vehicle 69 Other Elements 70 Comments Section 71 Te End Section 72 Endnotes 73 7 POI elimination Status Coding System 75 Introduction 75 Process of Elimination 75 Benefts of Elimination Status Coding Systems 76 Revised Elimination Status Coding System 77 A—Conclusive Elimination 77 B—Supported Elimination 78 C—Unsupported Elimination 79 D—Couldn’t Be Eliminated 79 Conclusion 80 Endnote 80 Section II JACk The rIPPer—CASe STuDy 8 Jack the ripper—Investigations 83 Introduction 83 Investigational Overview 84 Mary Ann Nichols 85 Annie Chapman 86 viii Contents Elizabeth Stride, aka ‘Long Liz’ 87 Catherine Eddowes 88 Mary Jane Kelly 90 Endnote 92 9 Jack the ripper—Criminal Profles 93 Introduction 93 Dr. Tomas Bond 93 FBI Supervisory Special Agent (SSA)—John E. Douglas (Retired) 94 Endnote 95 10 Creating the Jack the ripper POIPAT 97 Introduction 97 Te Heading 97 Geography Elements 97 Residence Section 98 Comfort Zone Section 99 Physical Description 99 Lifestyle 102 Marital Status 104 Employment 105 Education 107 Criminal History 107 Links to Victim 108 Availability 109 Weapon 10 Other 10 Comments 12 Te End Section 112 Endnotes 13 11 Jack the ripper POIPAT Instructional Guide 115 Introduction 15 Methodology 15 General Rules 116 POIPAT Element Assessment 116 Residence 17 Comfort Zone 117 Physical Description 117 Contents ix Lifestyle 18 Marital Status 119 Employment Status 119 Criminal History 120 Linked to Victims 120 Availability 121 Weapon 121 Other 12 Comments 12 Te End Section 122 12 Jack the ripper Suspects 125 Introduction 125 Tomas Hayne Cutbush 126 Montague John Druitt 127 Sir William Withey Gull 128 Severin Antoinovich Klosowski, aka George Chapman 130 Aaron Kosminski 133 Michael Ostrog 135 John Pizer, aka Leather Apron 136 Walter Richard Sickert 138 Dr. Roslyn D’Onston Stephenson (Dr. Robert Donston Stephenson) 141 Francis Tumblety 143 Endnote 146 13 Scoring the Jack the ripper Suspects 147 Introduction 147 Tomas Hayne Cutbush 148 Montague John Druitt 151 Sir William Withey Gull 154 Severin Antoinovich Klosowski, aka George Chapman 157 Aaron Kosminski 161 Michael Ostrog 164 John Pizer, aka Leather Apron 167 Walter Richard Sickert 172 Dr. Roslyn D’Onston Stephenson (Dr. Robert Donston Stephenson) 176 Francis Tumblety 179 Conclusion 182

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