Facts only the perpetrator could have known? A study of contamination in mock crime interrogations.

Objective: This paper examines contamination in interrogations: the process by which an interrogator divulges privileged information to a suspect.

Hypotheses: In Experiment 1, we predicted that mock investigators would communicate critical crime details when they interview mock suspects about a crime-and that innocent and guilty suspects alike would later produce confessions that contained these details. In Experiment 2, we hypothesized that observers who listened only to the confessions would exhibit a greater guilt bias than those who also had exposure to the eliciting interview.

Look there! The effect of perspective, attention, and instructions on how people understand recorded police encounters.

Now more than ever, body cameras, surveillance footage, dash-cam footage, and bystanders with phones enable people to see for themselves officer and civilian behavior and determine the justifiability of officers' actions. This paper examines whether the camera perspective from which people watch police encounters influences the conclusions that people draw. Consistent with recent findings showing that body camera footage leads people to perceive officers' actions as less intentional (Turner, Caruso, Dilich, & Roese, 2019), our first study demonstrates that participants who watched body-camera footage, compared with people who watched surveillance footage of the same encounter, perceived the officer's behavior as being more justified and made more lenient punishment decisions.