专家陪审制度的研究

案件事实认定中诉讼专门性问题的高频化和复杂化使得法官更加依赖具有专门知识的人来解决,而现有诉讼专门性问题的解决途径存在不足.以人民陪审制度为基础,选取具有某一专门知识的专家作为陪审员参与诉讼专门性问题的事实认定,既有利于弥补现有诉讼专门性问题解决途径的不足,使法庭更为准确地认定案件事实,又能有效地发挥人民陪审员的民主价值.目前专家陪审制度在诸多地方法院自主实行,亟待进行统一的制度规范.     

The effects of attorney presentation style,attorney gender,and juror gender on juror decisions

Extralegal characteristics of attorneys may play a significant role in the decision-making behavior of jurors. Presentation style, for example, is one factor to which trial lawyers pay a great deal of attention. However, a given style of speech may not be perceived equivalently when used by different speakers. The present study examined the effects of the defense attorney's presentation style and gender, and juror gender on jurors' verdicts and evaluation of the attorney and witness. Undergraduate college students read a brief summary of an assault-and-robbery case, viewed a videotape of either a passive or aggressive male or female attorney interrogating a witness, then rendered a verdict and rated the witness and attorney on characteristics such as competency, credibility, and assertiveness. The results indicated that, overall, aggressive attorneys were more successful at obtaining an acquittal for their clients than passive attorneys, and that male attorneys were more successful than female attorneys; presentation style also interacted with gender of attorney and juror. Some possible mechanisms for these effects are discussed.     

The influence of sample type,presentation format and strength of evidence on juror simulation research

Abstract

Recent research has indicated that treatment of psychopaths in therapeutic communities is problematic in terms of high rates of attrition, low levels of motivation and increased reconviction. However, there has been little previous research investigating in detail how the behavioural diffculties posed by psychopaths in therapeutic community settings could be systematically monitored is order to assess change. This paper reports on the development of a checkilst completed by prison officers designed to measure behaviours association with a poor adjustment to a prison based therapeutic community. Behaviour checklist accores showed statistically significant correlations with the Hare Psychopathy Checklist Revised (PCL-R, Hare 1991), patticularly with Factor 1 scores measuring intarpersonal aspects of psychopathy. The potential for developing this method as a type of dynamic assessment for psychopaths undertaking treatmant is discussed.     

对建立健全人民陪审员绩效考核体系的思考

自<关于完善人民陪审员制度的决定>颁布实施以来,各级人民法院陆续选任了一批人民陪审员,这些陪审员构成了我国审判队伍中一道亮丽的风景线.但长期以来,对于人民陪审员却缺乏科学的考评和监督,因此,法院建立人民陪审员的考核机制,采取年终考核与日常考核相结合,对人民陪审员的思想品德、审判纪律、陪审实绩等情况进行考核势在必行.各级人民法院还应建立陪审员业绩档案,以此作为年终表彰奖励和是否继续提请任命的重要依据,方能使人民陪审员制度建设取得更好的社会效果.     

Juror experience and jury verdicts

Most trial attorneys believe that repeated jury service produces several effects in jurors, one of the most important of which is an increased disposition toward conviction of criminal defendants. However, case law reveals a reluctance to accept the proposition that prior service per se would disquality a juror from sitting on an instant case because of actual or implied bias. The need for direct empirical investigation of the effects of prior jury service prompted the present study, which examined a complete docket of 175 consecutive criminal trials across onecalendar year in a state circuit court which required a 30-day term of its venire. The results indicated that as the number of jurors with prior jury experience increased there was a modest, but significant, increase in the probability of a conviction. Analysis of the relationship between initial verdicts and subsequent service disconfirmed the alternative hypothesis that attorneys deselected jurors on the basis of their first verdicts. Several parameters of experience were also related to foreperson selection. Implications for legal practice and for additional research are discussed.Support for this research was provided, in part, by National Science, Foundation grant No SES-8209479. A portion of this work was conducted while the senior author was a James McKeen Cattell Foundation Fellow.     

The effect of jury nullification instruction on verdicts and jury functioning in criminal trials

Jury nullification is a mechanism, and a defense, which allows the jury, as representatives of the community, to disregard both the law and the evidence and acquit defendants who have violated the letter, but not the spirit of the law. Should juries simply follow the law as articulated by the trial judge, or should they act as “conscience of the community,” and neglect the strict requirements of the law when it would lead to unjust or inequitable verdicts? The present study was aimed at providing empirical data for the following question: will the jury operate in a manner which is different than its normal functioning if given explicit nullification instructions? Three nullification instructins varying in explicitness as to nullification were combined with three criminal cases to yield a 3×3 factorial design. Forty-five six-person juries (270 subjects), were randomly assigned to the nine experimental groups. The results showed that juries given explicit nullification instructtions were more likely to vote guilty in a drunk driving case, but less likely to do so in a euthanasia case. The third case, which dealt with murder, did not show any differences due to instructions. Juries in receipt of nullification instructions spent less deliberation time on the evidence and more on defendant characteristics, attributions, and personal experiences.     

Perceived infallibility of detection dog evidence: implications for juror decision-making

This study focuses on the trust that potential jurors have in unsubstantiated evidence and the implications of such trust for legal decision-making. We examined whether participants’ motivation to think deeply (‘need for cognition,’ NC) and belief in science moderated their trust in potentially fallible detection dog evidence when selecting a verdict in a trial scenario. A detection dog twice indicated the presence of drugs in the scenario, yet no drugs were actually found. Those who chose a guilty verdict without drugs present featured stronger beliefs in detection dog evidence. They were also more confident that a dog alert indicated the presence of drugs, even though the scientific literature actually shows that detection dog evidence is subject to biases and other challenges to reliability. Our findings indicate that an unsubstantiated belief and trust in detection dog evidence may negatively influence juror decision-making, which may, in turn, pose consequences for fairness and justice. Participants believed that detection dogs provide powerful and reliable evidence, and these beliefs were clearly associated with stronger beliefs in science. These findings, therefore, raise serious concerns about jurors’ indiscriminate trust in forensic evidence, be it detection dog evidence or other lines of evidence presented in court.     

Jurors' interpretations and jury decision making

In arriving at their verdicts, jurors must determine what really happened in the case at hand. Their interpretations then guide their decision making and become influential in the group deliberation process. This article uses conversational data from simulated jury deliberations to describe jurors' practice of articulating schematic interpretations as accounts for their verdict choices, and as means for persuading other jurors. As jurors contribute additional interpretations during deliberations, the group decision-making task becomes more complex, deliberations las longer, and they are more difficult to resolve. A significant negative relation is established between the number of interpretations articulated and the jury's likelihood of reaching a unanimous verdict. Articulating multiple interpretations in support of a candidate verdict appears to militate against its unanimous adoption.I am endebted to Andre Modigliani and Joseph Sanders for their invaluable assistance on this project.     

Laboratory simulation and bias in the study of juror behavior

Theoretical speculation and meta-analysis suggest that the strength of treatment effects (e.g., defendant attractiveness) may become weaker as the experimental simulation becomes more realistic and complex. In order to test this hypothesis, various levels of biasing pretrial publicity were combined with both a short and a long trial. Results provided no support for the contention that treatment effects act differently as a function of the length of the stimulus trial in which they are embedded. Rather, it is suggested that treatments used in simplified jury simulations may often show similar effects when examined in more realistic, complex settingsif the treatments are comparable.This research was supported by NSF Research grant No. SES 8419944 to the second author, John Carroll, and James Alfini. Portions were presented at the Midwestern Psychological Association Convention, Chicago, May 7–9, 1987.     

The jury: Social and psychological variables

The selection of a jury is an important phase of the American court system. Many lawyers believe that wise choices at this point may mean the difference between winning and losing a case. Various means of selecting jurors have been practiced by attorneys, and there seem to be among lawyers general impressions about the type of people best suited for certain cases. These ideas have most often concerned social, economic and psychological variables rather then genetic factors.The purpose of this study is to add to the limited body of knowledge in this area by identifying and testing some of these variables. The first step was to design a research instrument to gather significant data relating to the jury system. Included in this examination were both psychological and socio-economic information. Also incorporated into the study were questions designed to reveal the respondents’ jury backgrounds. Items sought to disclose how a juror perceived the trial, interacted with the group, and voted.After the construction of the research tool, a survey was made using it in one of the counties of Florida. The interviews were conducted to gather data regarding perceptions of jurors and test the research tool. The people chosen to be interviewed came from the venire furnished by the county clerk. Analysis of the information was conducted. Statistical tests of significance revealed that the people illustrated a strong support for the jury system and a relatively high degree of commonality of attitudes. Comparisons were done on groups voting guilty with those voting not guilty. Voting tests on national origin and income further supported a homogeneity of attitudes. The importance of a trial vote to testing jurors was found.This case study aided in identifying some plausible hypotheses and providing data on the relationship of variables that are of import to understanding the jury system.     

The death-qualified jury and the defense of insanity

We predicted that people who are excluded from serving on juries in capital cases due to their opposition to the death penalty (excludable subjects) tend to place a greater value on the preservation of due process guarantees than on efficient crime control, and therefore are more likely to accept an insanity defense in criminal cases than are people who are permitted to serve on capital juries (death-qualified subjects). Subjects who had previously been classified as death-qualified or excludable read four summaries of cases in which the defendant entered a plea of insanity, and made judgments of guilt or innocence. In the two cases involving nonorganic disorders (schizophrenia), death-qualified subjects were significantly more likely than excludable subjects to vote guilty; in the two cases involving organic disorders (mental retardation and psychomotor epilepsy), there were no differences between the two groups. In addition, excludable subjects gave significantly higher estimates than death-qualified subjects of the proportion of defendants pleading insanity who really are insane.     

Effects of pretrial juror bias,strength of evidence and deliberation process on juror decisions: new validity evidence of the Juror Bias Scale scores

This study examines the validity of the Juror Bias Scale scores in relation to the mock juror decisions reached in two real life homicide cases before and after the deliberation process. The judicial cases used varied in terms of the ambiguity of the evidence presented at both trials. The WLS methodology for statistical modelling of categorical data was used to analyse data. The findings indicated that the Juror Bias Scale scores successfully predict the verdicts and other related questions before and after deliberations in the case with ambiguous evidence. Furthermore, deliberations caused a generalisation effect on the pretrial juror bias in such a case, and enhanced the differences between defense-biased and prosecution-biased jurors in the verdicts delivered after deliberations. The implications of these findings are discussed in relation to the use of pretrial juror bias questionnaires in jury selection.     

Implications of the Minority Identity Development Model for jury consultants

Jurors from racial and ethnic minority, groups are often stereotyped as favoring the “underdog.” The problem with this generalization is that it ignores minority identity development as a within-group variable. This paper describes five stages of the Minority Identity Development (MID) Model and its implications for jury consultants.     

Pretrial publicity,judicial remedies,and jury bias

Although past research has established pretrial publicity's potential to bias juror judgment, there has been less attention given to the effectiveness of judicial remedies for combatting such biases. The present study examined the effectiveness of three remedies (judicial instructions, deliberation, and continuance) in combatting the negative impact of different types of pretrial publicity. Two different types of pretrial publicity were examined: (a) factual publicity (which contained incriminating information about the defendant) and (b) emotional publicity (which contained no explicitly incriminating information, but did contain information likely to arouse negative emotions). Neither instructions nor deliberation reduced the impact of either form of publicity; in fact, deliberation strengthened publicity biases. Both social decision scheme analysis and a content analysis of deliberation suggested that prejudicial publicity increases the persuasiveness and/or lessens the persuasibility of advocates of conviction relative to advocates of acquittal. Acontinuance of several days between exposure to the publicity and viewing the trial served as an effective remedy for the factual publicity, but not for the emotional publicity. The article concludes by discussing the potential roles of affect and memory in juror judgment and evaluating the available remedies for pretrial publicity.     

Perceptions of jury duty: Satisfaction and overall impression

A jury service exit questionnaire that was designed to measure satisfaction with and overall impression of jury duty was administered to a saturation sample of 2,947 respondents by court clerks serving District or Circuit courts in nine counties in southeastern Michigan. For those sworn to jury duty, global satisfaction with the jury experience is found to be influenced by perceptions of trial characteristics and by the extent of participation in the jury system. The significant predictors of overall impression with the jury system are respondent age, being elected jury foreman, and deliberating a criminal rather than civil case. An earlier draft of this paper was presented at the 1985 Meetings of the North Central Sociological Association. This research was funded in part by the Michigan State Supreme Court. We acknowledge the contributions made to this paper by members of the Sorrento Seminar and by anonymous reviewers. Patrick C. Easto provided the inspiration for writing the first as well as the final draft of this paper.     

Roles of neighborhood race and status in the middle stages of juror selection

This study investigated impacts of neighborhood race, status, and stability on the likelihood that summoned citizens would appear at the courthouse for jury duty using a full year of geocoded summoning data from Philadelphia, Pennsylvania (n = 256,204). A theoretical model based on jury selection models and the sociology of settlement patterns connected potential juror yield or turnout with neighborhood stability, and racial and status composition. Multilevel models using census block groups as neighborhoods and controlling for spatial autocorrelation found, as predicted, that yield varied significantly across neighborhoods, and was lower in lower status neighborhoods, less stable neighborhoods, more predominantly Asian neighborhoods, and more predominantly Hispanic neighborhoods. As predicted by work on neighborhood integration, effects of African-American racial composition depended on the stage of neighborhood integration. Overall, the net effect of increasing African-American neighborhood racial composition was to increase yield. A significant spatial lag effect suggested localized dynamics operating beyond neighborhood boundaries.