Department of Psychology, Iowa State University, Ames, IA, 50010, USA.
Evocavi, LLC, Oro Valley, USA.
Sci Rep. 2023 Apr 15;13(1):6135. doi: 10.1038/s41598-023-32975-w.
Investigative interviews (e.g., interrogations) are a critical component of criminal, military, and civil investigations. However, how levels of alertness (vs. sleepiness) of the interviewer impact outcomes of actual interviews is unknown. To this end, the current study tracked daily fluctuations in alertness among professional criminal investigators to predict their daily experiences with actual field interviews. Fifty law-enforcement investigators wore a sleep-activity tracker for two weeks while keeping a daily-diary of investigative interviews conducted in the field. For each interview, the investigators indicated how well they established rapport with the subject, how much resistance they encountered, how well they maintained their own focus and composure, and the overall utility of intelligence obtained. Daily alertness was biomathematically modeled from actigraphic sleep duration and continuity estimates and used to predict interview characteristics. Investigators consistently reported more difficulties maintaining their focus and composure as well as encountering more subject resistance during interviews on days with lower alertness. Better interview outcomes were also reported on days with subjectively better sleep, while findings were generally robust to inclusion of covariates. The findings implicate adequate sleep as a modifiable fitness factor for collectors of human intelligence.
调查性访谈（例如审讯）是刑事、军事和民事调查的重要组成部分。然而，访谈者的警觉水平（相对于困倦程度）如何影响实际访谈的结果尚不清楚。为此，本研究跟踪了专业刑事调查员的日常警觉水平波动，以预测他们在实际现场访谈中的日常体验。五十名执法调查员佩戴睡眠活动追踪器两周，同时记录他们在现场进行的日常调查访谈日记。对于每次访谈，调查员都表示他们与受访者建立关系的程度、遇到的阻力大小、他们保持自身专注和镇静的程度以及获得的情报的整体效用。从活动记录仪估计的睡眠时间和连续性中进行生物数学建模，以预测访谈特征。调查员一致报告说，在警觉性较低的日子里，他们在访谈中更难以保持专注和镇静，并且遇到更多的受访者阻力。在主观上睡眠质量更好的日子里，访谈结果也更好，而这些发现通常不受纳入协变量的影响。这些发现暗示充足的睡眠是收集人类情报人员的可改变的适应因素。
