From the "Scope of the Report" section of the document: "The objective of this report is to provide a systematic review and evidence synthesis of the science related to interrogation. It is not intended as a manual or practitioners' guide. The emerging science of interrogation relies on a variety of relevant disciplines and fields of study for its theoretical and scientific foundations, many of which have provided decades of data. For instance, research on interrogations in the criminal justice system has been steadily accumulating for decades, providing data on topics such as effective and ineffective interrogation and interview methods, the conditions under which victim, witness, and suspect memories are most vulnerable, valid cues to deception, and the conditions under which individuals confess to crimes they did not commit. During the same period, there has been an emergence and growth of science on negotiation and social influence, persuasion, resistance, priming and embodied cognition, and cognitive-based cues to deception. To the extent that this research is relevant to an interrogation, it is included in this report. This report provides a comprehensive review of HIG-funded [High-Value Detainee Interrogation Group] research and other science relevant to interrogations: assessing cooperation and countering resistance (Chapter 1), influencing tactics (Chapter 2), interview methods (Chapter 3), and detecting truth and deception (Chapter 4). Based on the comprehensive research and field validation studies detailed in this report, it is concluded that the most effective practices for eliciting accurate information and actionable intelligence are non-coercive, rapportbased, information-gathering interviewing and interrogation methods."