Ideal for policymakers, journalists, academics, and researchers, this review of European practices in the evaluation of safety and crime-prevention policies--ranging from mere incantation to highly sophisticated techniques--offers a methodological discussion of the uses of evaluative research in criminology and sociology. Estimating policy impact and revealing the controversial conditions required for evaluation, the volume examines the different legislation and crime policies, both good and bad, in Belgium, France, the Netherlands, England, and Wales. With a complete summary of its findings, the book also provides a final conclusion for all of Europe.