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This book provides the first empirical analysis of lone-actor terrorist behaviour. Based upon a unique dataset of 111 lone actors that catalogues the life span of the individual's development, the book contains important insights into what an analysis of their behaviours might imply for practical interventions aimed at disrupting or even preventing attacks. It adopts insights and methodologies from criminology and forensic psychology to provide a holistic analysis of the behavioural underpinnings of lone-actor terrorism. By focusing upon the behavioural aspects of each offender and by analysing.

Abstract
Regulatory impact assessment (RIA) is an appraisal tool to bring evidence to bear on regulatory decisions. A key property of RIA is that is corrects errors in reasoning by pushing regulators towards deliberative thinking to override intuitive judgments. However, the steps for regulatory analysis suggested by international organisations and governmental handbooks do not handle two sources of bias and barriers that are well documented in the literature on behavioural insights. First, bias enters the process via knowledge production during the analytical process of assessment. Second, bias affects knowledge utilisation when regulators "read" or utilise the results of RIA. We explore these two pathways by focusing on drivers of behaviour rather than lists of biases. The conclusions reflect on the limitations of current practice and its possible improvement, making suggestions for an RIA architecture that is fully informed by behavioural analysis.

It is argued on the basis of ideas from personal construct psychology that people feel attached, or desire strongly to become attached, to particular consumption pathways because they judge that to do otherwise would carry "implications" of a predominantly negative kind with respect to their abilities to make sense of the complex and uncertain world around them. It is noted that information‐processing problems may make it impossible for consumers to compute the overall implications of alternative strategies when market conditions change. Hence they may use simplifying decision procedures which may conflict with the principle of substitution.

This article is a survey of behavioural analysis of criminal law. Behavioural analysis of criminal law exploits social science methodologies (behavioural economics, psychology and even sociology) to explore the effects of criminal law norms and enforcement policy on criminals, judges, juries, lawyers and other decision-makers, to determine the optimal type and size of criminal sanctions, to identify the optimal design of the enforcement system and the rules of evidence. Unlike traditional economic analysis, the behavioural perspective is eclectic rather than unitary; it is composed of various psychological and sociological findings including cognitive biases and their effects, prospect theory, the effects of social norms, findings concerning the ways preferences and beliefs are being shaped and even studies concerning happiness. Behavioural theorists call for the understanding and at times exploitation of various cognitive misperceptions, biases and heuristics to increase the deterrent effect of criminal law prohibitions and sanctions and/or increase their effectiveness. This survey compares this approach to traditional retributive approach and to economic analysis of law. It also provides several examples in which behavioural insights were used and, last it evaluates the prospects that the behavioural approach will influence policy and legislation.