Professor Laurence Alisonis Co-director of the Centre for Critical Incident Research, University of Liverpool where he also holds a Chair in forensic psychology. He is a Chartered Forensic Psychologist, conducts research on investigative decision-making and leadership and has contributed to a number of major police enquiries as well as national police training programmes. His recent publications include (as editor) The Forensic Psychologist's Casebook (Willan Publishing, 2005).

• Preface: A Conversation that Mattered. Foreword: Understanding Critical Event Learning and Leadership Using Hydra/10kVImmersive Learning and Debriefing and Other Tools 1. Introduction 2. The Journey 3. Electronic Debriefs and Simulations as Descriptive Methods for Defining the Critical Incident Landscape 4. The Current State of Police Leadership Research 5. Command, Control and Support in Critical Incidents 6. Leading Co-operation and Context in Hydra Syndicates 7. Towards a Taxonomy of Police Decision Making in Murder Enquiries 8. Heuristics and Biases in Decision Making 9. Emotions in Policing: The Emotional Legacy of Homicide Investigations 10. Decision Inertia: The Impact of Organisations on Critical Incident Decision Making 11. Conclusions

Professor Laurence Alisonis Co-director of the Centre for Critical Incident Research, University of Liverpool where he also holds a Chair in forensic psychology. He is a Chartered Forensic Psychologist, conducts research on investigative decision-making and leadership and has contributed to a number of major police enquiries as well as national police training programmes. His recent publications include (as editor) The Forensic Psychologist's Casebook (Willan Publishing, 2005).

• Preface: A Conversation that Mattered. Foreword: Understanding Critical Event Learning and Leadership Using Hydra/10kVImmersive Learning and Debriefing and Other Tools 1. Introduction 2. The Journey 3. Electronic Debriefs and Simulations as Descriptive Methods for Defining the Critical Incident Landscape 4. The Current State of Police Leadership Research 5. Command, Control and Support in Critical Incidents 6. Leading Co-operation and Context in Hydra Syndicates 7. Towards a Taxonomy of Police Decision Making in Murder Enquiries 8. Heuristics and Biases in Decision Making 9. Emotions in Policing: The Emotional Legacy of Homicide Investigations 10. Decision Inertia: The Impact of Organisations on Critical Incident Decision Making 11. Conclusions

Professor Laurence Alisonis Co-director of the Centre for Critical Incident Research, University of Liverpool where he also holds a Chair in forensic psychology. He is a Chartered Forensic Psychologist, conducts research on investigative decision-making and leadership and has contributed to a number of major police enquiries as well as national police training programmes. His recent publications include (as editor) The Forensic Psychologist's Casebook (Willan Publishing, 2005).

• Preface: A Conversation that Mattered. Foreword: Understanding Critical Event Learning and Leadership Using Hydra/10kVImmersive Learning and Debriefing and Other Tools 1. Introduction 2. The Journey 3. Electronic Debriefs and Simulations as Descriptive Methods for Defining the Critical Incident Landscape 4. The Current State of Police Leadership Research 5. Command, Control and Support in Critical Incidents 6. Leading Co-operation and Context in Hydra Syndicates 7. Towards a Taxonomy of Police Decision Making in Murder Enquiries 8. Heuristics and Biases in Decision Making 9. Emotions in Policing: The Emotional Legacy of Homicide Investigations 10. Decision Inertia: The Impact of Organisations on Critical Incident Decision Making 11. Conclusions