"The National Defense Authorization Act for Fiscal Year 2016 requires the High-Value Detainee Interrogation Group (HIG) to submit a report on best practices for interrogation. This report, which includes (1) a brief overview of the HIG, (2) the methodology used to select the interrogation best practices contained herein, (3) interrogation best practices, and (4) concluding comments, fulfills the aforementioned requirement. The best practices, which are grounded in science, may be used to inform changes to Army Field Manual 2-22.3. This report does not provide a comprehensive review of the science related to best practices. A report which details the relevant scientific research is currently under review."
Federal Bureau of Investigation: https://www.fbi.gov