Intelligence and Security Informatics (ISI) is a multidisciplinary science encompassing methodologies, models, algorithms, and advanced tools for intelligence analysis, homeland security, terrorism research as well as security-related public policies. EuroISI 2008 is the first European edition of the series of ISI symposiums being held annually in the US since 2003 and more recently in Asia. These meetings gather together people from previously disparate communities to provide a stimulating forum for exchange of ideas and results. We invite to this meeting academic researchers (in information technologies, computer science, public policy, and social and behavioral studies), law enforcement and intelligence experts, as well as information technology companies, industry consultants and practitioners in the fields involved. EuroISI 2008 will be held in Esbjerg, Denmark. The proceedings of EuroISI 2008 will be published by Springer in the Lecture Notes in Computer Science series.