Abstract
Acknowledgements
I am grateful to Richard Jackson and Anne Harris for their comments on an earlier version of this introduction. I also thank Vincent Keating for his assistance in editing the papers.
Notes
1. For further details of the conference and a rapporteur's report, see http://www.aber.ac.uk/interpol/en/research/DDMI/research_trust_building_workshops.html/.
2. I am grateful to Roderick Kramer for suggesting this formulation.