The book assesses the adoption of counterterrorism measures in the Netherlands and the United States, which facilitate criminal investigations with a preventive focus (anticipative criminal investigations), from the perspective of rule of law principles. Anticipative criminal investigation has emerged in the legal systems of the Netherlands and the United States as a consequence of counterterrorism approaches where the objective of realizing terrorism prevention is combined with the objective to eventually prosecute and punish terrorists. This book has addressed this new preventive function...