The events of September 11,2001, brought about revolutionary changes in law enforcement and intelligence sharing, which has been heralded as an indispensable weapon in the current war against terrorism.

Despite these rapid and radical developments in the field, there has been scant scholarly analysis of the consequences of conjoining two traditionally divergent sectors, which were previously distinguished by function, degree of transparency, and adherence to law.

The authors, whose backgrounds run the gamut from law enforcement to defense, explore this enigmatic subject from a variety of perspectives, both academic and practical. For example, how does the sharing of information between intelligence agencies and law enforcement organizations affect its usage as criminal evidence ? Is such evidence admissible if it is obtained extraterritorially, even if by illegal means ? What of the use of classified evidence ? How does law enforcement and intelligence cooperation affect privacy concerns and data protection ? How is this phenomenon being addressed in the European Union ? How is such cooperation affecting traditional mutual legal assistance methods ? Does this new development represent a fundamental shift from a citizen-oriented to an enemy-oriented criminal law ? Can intelligence activities really be regulated on an international level ? How have individual nations incorporated information-sharing into their domestic legislation ? What role do extraordinary renditions play in this dynamic ?

Through this volume, the authors aim to address in depth these and other facets of this rapidly developing trend in both domestic and international criminal law with the hope that this ground-breaking study will lead to additional scholarly investigation and public awareness of a phenomenon that will, for good or evil, forever alter the landscape of criminal law and personal privacy as we know it.