The editor wishes to express his gratitude to those individuals and institutions that have made this book possible. I have greatly profited from the constructive atmosphere with the coauthors of this book at the international conference “Spy in the Sky: Regulatory Issues of Drones and Unmanned Aerial Systems” organised at the Faculty of Law of the University of Ljubljana in May 2013 in Ljubljana (Slovenia). This was one of the first, if not the first, conferences worldwide dedicated to regulatory aspects of drones. This was the period of the initial political decisions of governments around the world that drones should be integrated into the civilian space and the time many of us realised that drones are here to stay. I also greatly appreciate what I gained from my coauthors, who were in many ways much more versed in this area, and also from my colleagues at the Institute of Criminology at the Faculty of Law—I owe many ideas to our inspiring and sometimes necessarily turbulent conversations. My greatest thanks go to all my coauthors. I met some of them for the first time at the conference. They have been courageous enough to trust the editing of the book to me. I have known others for a while, and I am happy to be able to work with them on a common book as I admire and appreciate their work and thoughts. I would like to thank the Slovenian Research Agency for awarding a postdoctoral grant that enabled me to research the topic and organise a conference in Ljubljana. My thanks go also to the Institute of Criminology in Ljubljana and its Director, Professor Matja? Jager, who showed full understanding of the book. Finally, I would like to thank the team at the publisher for being very supportive and encouraging the whole process of preparing this book throughout.