This study examined whether showing jurors a video of the witness's initial attempts to describe and identify the perpetrator would facilitate jurors' ability to discriminate between accurate and inaccurate witnesses. Mock jurors observed a simulated trial in which the key witness testified under direct examination and cross-examination. The jurors saw either the witness's testimony or the witness's testimony plus videotape footage of the earlier police interviews in which the witness described and attempted to identify the perpetrator. Results support the hypothesis: Jurors in the examination-plus-video condition discriminated between accurate and inaccurate witnesses better than jurors in the examination-only condition. We discuss various mechanisms to explain the advantage provided by the video. It is recommended that police officers videotape the line-up procedure and that jurors be shown this video at trial.

When finding unconstitutional the execution of defendants who were mentally retarded at the time of their crime in Atkins v. Virginia (2002), the US Supreme Court left the States to decide on procedures for deciding a defendant's mental retardation. This has and will lead to substantial variation, and will include juries being responsible for these verdicts. Two studies are presented that test procedural, evidentiary, and attitudinal effects on mock juror verdicts as to a capital defendant's mental retardation. Both studies show significant effects of procedural variables. Making the retardation and death decision at the same trial phase changed jurors' interpretation of evidence, including severity of mental problems. Jurors were insensitive to differences in the burden of proof on mental retardation verdicts, although demanding proof beyond a reasonable doubt may make jurors more sensitive to retardation evidence when deciding on a death sentence. Areas for future research are outlined.

Objective: Given the greater contact that Black youth have with the legal system compared with White youth, it is important to consider the differential ways that police use of force against these youth is perceived. Black youth may be at greater risk than White youth for animalistic (being seen as animal-like) and mechanistic (being seen as object-like) dehumanization, which, along with a tendency for Black youth to be perceived as older (adultification), may impact observers' perceptions of police use of force toward Black youth. This study examined whether dehumanization and adultification were associated with the perceptions of force used and harm caused by police. Hypotheses: We made five hypotheses. First, participants would dehumanize Black individuals more than White individuals, more mechanistically dehumanize Black women than Black men, and more animalistically dehumanize Black men than Black women. Second, dehumanization would be positively associated with adultification. Third, force would be rated as less appropriate and more excessive for White than for Black targets, particularly for males. Fourth, dehumanization, particularly animalistic dehumanization, would be associated with higher participant ratings of force justification and lower participant ratings of force severity and excessiveness. Fifth, participants would perceive girls as more harmed than boys and White individuals as more harmed than Black individuals. Method: After completing an implicit dehumanization measure, participants viewed an image (varied on age and gender) of a juvenile, estimated the juvenile's age, and read a vignette in which the juvenile had an altercation with police. Participants rated the amount, severity, and justification of the force used by the officer as well as the physical and emotional harm caused to the juvenile. Results: We found that Black targets were dehumanized more than White targets. Adultification, unrelated to implicit dehumanization, predicted perceiving police use of force against juveniles as more justified and less severe. Black girls were most likely to experience adultification; participants generally perceived them as less victimized than Black boys and White girls. Conclusions: Adultification is associated with fewer protections for youth. Those with particular intersectional identities, such as Black girls, may be uniquely vulnerable to harm caused by police victimization. Public Significance StatementBlack youth are uniquely vulnerable in the criminal legal system. Dehumanizing perceptions of these youth, particularly adultifying perceptions leading people to see them as more adultlike, may deny them access to justice via observers perceiving their victimization by police as less severe and less harmful. Black girls in particular may be at risk, given the relatively lesser attention that has been paid to their victimization and the tendency for observers to misperceive them as older. Despite more policies being passed to protect adults from racial bias in policing, relatively fewer polic...

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