Graham Farrell is Professor at the Centre for Criminal Justice Studies, School of Law, University of Leeds. He has published many studies relating to Crime Science. He has been fortunate, both professionally and personally, to know and learn from Nick Tilley for 25 years, including the last decade or so researching the international crime drop together. Aiden Sidebottom is Senior Lecturer at the Jill Dando Institute of Security and Crime Science, University College London. His main research interests are situational crime prevention, problem-oriented policing and programme evaluation. He recently co-edited the Handbook of Crime Prevention and Community Safety (2nd edition, with Nick Tilley).

• 1. Nick Tilley: The Wizard of Whitby, Aiden Sidebottom and Graham Farrell, Part I: On Realist Evaluation. 2. Nick Tilley: An Academic Life in Six Scenes, Ray Pawson, 3. Realist Evaluation and Bayesian Statistics: A Marriage Made in Heaven?, Ken Pease and Gloria Laycock, 4. The Fit between Realistic Evaluation and Situational Crime Prevention, Ronald V. Clarke, 5. From threat to debt… or, there is mechanism in my madness, Paul Ekblom, Part II: On Research and Evidence. 6. The Virtues of Rubbish Research: Measuring the Impact of Interventions in Public Spaces, Troy Allard, Anna Stewart and Marni Manning, 7. Challenges for EMMIE as a Realist Evaluation Framework, Kate Bowers, Paul Gill, Ruth Morgan and Sarah Meiklejohn and Shane D. Johnson, 8. Second Science? The Future of Historical Science in Criminology, Paul Knepper, Part III: On Policing and Crime Prevention. 9. Did Violence Fall after Property Crime?, Graham Farrell, Andromachi Tseloni and Natacha Chenevoy, 10. A Nick Tilley Perspective on Preventing Opportunistic Insurance Fraud, Martin Gill, 11. Disrupting Organised Crime, Stuart Kirby, 12. Policing and Preventing Crime in Partnership, Karen Bullock, 13. Units of Work and Units of Analysis, John E. Eck

Graham Farrell is Professor at the Centre for Criminal Justice Studies, School of Law, University of Leeds. He has published many studies relating to Crime Science. He has been fortunate, both professionally and personally, to know and learn from Nick Tilley for 25 years, including the last decade or so researching the international crime drop together. Aiden Sidebottom is Senior Lecturer at the Jill Dando Institute of Security and Crime Science, University College London. His main research interests are situational crime prevention, problem-oriented policing and programme evaluation. He recently co-edited the Handbook of Crime Prevention and Community Safety (2nd edition, with Nick Tilley).

• 1. Nick Tilley: The Wizard of Whitby, Aiden Sidebottom and Graham Farrell, Part I: On Realist Evaluation. 2. Nick Tilley: An Academic Life in Six Scenes, Ray Pawson, 3. Realist Evaluation and Bayesian Statistics: A Marriage Made in Heaven?, Ken Pease and Gloria Laycock, 4. The Fit between Realistic Evaluation and Situational Crime Prevention, Ronald V. Clarke, 5. From threat to debt… or, there is mechanism in my madness, Paul Ekblom, Part II: On Research and Evidence. 6. The Virtues of Rubbish Research: Measuring the Impact of Interventions in Public Spaces, Troy Allard, Anna Stewart and Marni Manning, 7. Challenges for EMMIE as a Realist Evaluation Framework, Kate Bowers, Paul Gill, Ruth Morgan and Sarah Meiklejohn and Shane D. Johnson, 8. Second Science? The Future of Historical Science in Criminology, Paul Knepper, Part III: On Policing and Crime Prevention. 9. Did Violence Fall after Property Crime?, Graham Farrell, Andromachi Tseloni and Natacha Chenevoy, 10. A Nick Tilley Perspective on Preventing Opportunistic Insurance Fraud, Martin Gill, 11. Disrupting Organised Crime, Stuart Kirby, 12. Policing and Preventing Crime in Partnership, Karen Bullock, 13. Units of Work and Units of Analysis, John E. Eck

Graham Farrell is Professor at the Centre for Criminal Justice Studies, School of Law, University of Leeds. He has published many studies relating to Crime Science. He has been fortunate, both professionally and personally, to know and learn from Nick Tilley for 25 years, including the last decade or so researching the international crime drop together. Aiden Sidebottom is Senior Lecturer at the Jill Dando Institute of Security and Crime Science, University College London. His main research interests are situational crime prevention, problem-oriented policing and programme evaluation. He recently co-edited the Handbook of Crime Prevention and Community Safety (2nd edition, with Nick Tilley).

• 1. Nick Tilley: The Wizard of Whitby, Aiden Sidebottom and Graham Farrell, Part I: On Realist Evaluation. 2. Nick Tilley: An Academic Life in Six Scenes, Ray Pawson, 3. Realist Evaluation and Bayesian Statistics: A Marriage Made in Heaven?, Ken Pease and Gloria Laycock, 4. The Fit between Realistic Evaluation and Situational Crime Prevention, Ronald V. Clarke, 5. From threat to debt… or, there is mechanism in my madness, Paul Ekblom, Part II: On Research and Evidence. 6. The Virtues of Rubbish Research: Measuring the Impact of Interventions in Public Spaces, Troy Allard, Anna Stewart and Marni Manning, 7. Challenges for EMMIE as a Realist Evaluation Framework, Kate Bowers, Paul Gill, Ruth Morgan and Sarah Meiklejohn and Shane D. Johnson, 8. Second Science? The Future of Historical Science in Criminology, Paul Knepper, Part III: On Policing and Crime Prevention. 9. Did Violence Fall after Property Crime?, Graham Farrell, Andromachi Tseloni and Natacha Chenevoy, 10. A Nick Tilley Perspective on Preventing Opportunistic Insurance Fraud, Martin Gill, 11. Disrupting Organised Crime, Stuart Kirby, 12. Policing and Preventing Crime in Partnership, Karen Bullock, 13. Units of Work and Units of Analysis, John E. Eck