- Scientific jury selection
Scientific jury selection, often abbreviated SJS, is the use of social science techniques and expertise to choose favorable juries during a criminal or civil trial. Scientific jury selection is used during the
jury selectionphase of the trial — when lawyers have the opportunity to question jurors and they and the judge choose which people will be on the jury. It almost always entails an expert's assistance in the attorney's use of peremptory challenges — the right to reject a certain number of potential jurors without stating a reason — during jury selection. The practice is currently confined to the American legal system.
SJS has roots in criminal trials during the
Vietnam Warera, but in modern times is usually employed in high-stakes civil litigation (where only money is usually at issue, in contrast to criminal trials, where the defendant can go to prison). SJS practitioners determine what background characteristics and attitudes predict favorable results, and then coordinate with attorneys in choosing the jury. Studies are mixed as to the effectiveness of the practice, though it is clear that the evidence presented at trial is the most important determiner of verdicts (the trial result) and that SJS is more likely to have an impact where that evidence is ambiguous. SJS's potential to unfairly skew the jury has led to some reform proposals, but none have yet been implemented. The limited fictional portrayals of SJS have been negative towards the practice.
History and use
During jury selection in the United States, attorneys have two options for excluding potential jurors. The first option is a "
challenge for cause", in which attorneys must state the reason for a challenge (such as clear bias or a conflict of interest), the opposing party is allowed to respond, and the judge decides whether to exclude the juror. The second option is a peremptory challenge, where an attorney can exclude a juror without stating any reason. While challenges for cause are unlimited, attorneys have a limited number of peremptory challenges, sometimes as few as four, although 10 is more common in non-capital felonycases. [Mariana, G. (1975). "Peremptory challenge—divining rod for a sympathetic jury?" "The Catholic Lawyer" 21, pp. 68–70.]
Attorneys have long used peremptory challenges to exclude undesirable prospective jurors, but have not always been successful. Much of the early efforts were based on lawyers' folklore about who makes a good juror for their case. [Plutchik, R., & Schwartz, A. K. (1965). "Jury Selection: Folklore or science?". "Criminal Law Bulletin" 1, pp. 3–10] Early examples of scientific jury selection were similar. For example, in the 1975 Joan Little trial, defense attorneys used an astrologer to help choose the jury. More rigorous methodology was on display during the first major use of SJS, the 1972
Harrisburg Seventrial. During that trial, social scientists used demographic characteristics to identify biases in favor of conviction. The consultants in the case had conducted surveys that indicated women and Democrats would make defense-friendly jurors, and the religious, those with college degrees, and " Reader's Digest" subscribers would be better for the prosecution.Matthew Hutson. " [http://psychologytoday.com/articles/pto-20070302-000001.html Unnatural Selection] " Mar/Apr 2007, " Psychology Today".] Although surveys had indicated that 80% of citizens in conservative Harrisburg, Pennsylvaniawould convict the defendants, they were acquitted of all serious charges.
A jury consultant helped pick the jury in the O. J. Simpson murder trial. Criminologist Jo-Ellan Dimitrius used surveys to determine the ideal defense juror demographic (black women) and analyzed and judged the prospective jurors' answers to a questionnaire and response and body language during voir dire (the stage of jury selection where lawyers are permitted to direct questions to the jury). [Linder, Douglas O. (2000) [http://www.law.umkc.edu/faculty/projects/ftrials/Simpson/Jurypage.html#Selection%20of%20the The O. J. Simpson Trial: Selection of the Jury] . Retrieved 14 July 2006.] Prosecutor
Vincent Bugliosigives more credit to the traditional change of venue. He argues that transferring the case to a section of Los Angeles with more blacks in the jury pool was most detrimental to the selection of a prosecution-friendly jury. [Vincent Bugliosi (1997). "Outrage: The Five Reasons Why O.J. Simpson Got Away With Murder." Island Books, pp. 56-64.] Incidentally, the prosecutor fired her court-appointed jury consultant early in the process.
Contemporary jury consultants are often sociologists, people with experience in communications and marketing, or attorneys themselves, but they are most frequently psychologists. [Strier & Shestowsky, p. 445.] Although most of the practice's roots are in criminal trials, modern jury consultants are more often involved in
torts (civil litigation), [Franklin Strier & Donna Shestowsky (1999). "Profiling the profilers: a study of the trial consulting profession, its impact on trial justice, and what, if anything, to do about it." "Wisconsin Law Review", p. 441. Cited at pp. 450–1.] particularly where wealthy corporate defendants fear an enormous monetary judgment for the plaintiff, or where plaintiffs’ attorneys have invested large sums of money in an important lawsuit. Since the 1980s, large jury consulting and trial consulting firms have sprouted up with multi-million dollar incomes, mostly from such high-stakes civil litigation. [Gary Moran, Brian L. Cutler and Anthony De Lisa, "Attitudes Toward Tort Reform, Scientific Jury Selection, and Juror Bias: Verdict Inclination in Criminal and Civil Trials." (1994) "Law and Psychology Review" 18: 310–1.] The simultaneous shift from ad-hoc groups of academics to a business model has sparked the criticism that SJS magnifies the distorting effect money has on trials, since only the wealthy can afford it. [Neil J. Kressel and Dorit F. Kressel (2004). "Stack and Sway: The New Science of Jury Consulting." Boulder, Colorado: Westview Press, pp 79-81] Jury consultants argue that they operate in an adversarial process the same way lawyers do; by pursuing their clients' interests in a rule-bound framework. Jeffrey Abramson, who has written extensively about juries, argues that even if SJS is ethical or has zero effect, the mere myth of powerful, effective jury manipulators shakes public confidence in the jury system. [Abramson, Jeffrey. (1994) "We, the Jury: The Jury System and the Ideal of Democracy". New York: BasicBooks. pp 153-4]
The terms "jury consulting" (see
jury research) and "trial consulting" are sometimes used interchangeably with "scientific jury selection", though there are distinctions. One firm says jury consulting is a broader field than SJS that includes locally-tailored advice about trial presentation based on surveys and mock performances. [FTI Consulting. [http://www.fticonsulting.com/web/services/Jury_Consulting.html Jury Consulting] . Retrieved 8 September 2007.] Trial consultingis a broader field still.
The theory behind SJS is that juror demographics predict juror attitudes, which in turn predict verdicts. By discovering what relationships exist between certain demographic categories and certain attitudes, attorneys can exclude those from the jury whose attitudes would predispose them to a bad verdict.Fact|date=November 2007
Researcher Shari Diamond indicates that jury consultants primarily rely on two methods: telephone surveys and mock trials (trial simulations).Diamond, S. S. (1990). "Scientific Jury Selection: What Social Scientists Know and Do Not Know", "Judicature" 73 pp. 180–81.] Telephone surveys are the practitioners' "primary research method". During a survey of the community where the trial is taking place, jury consultants ask about:
# background characteristics of the jury pool such as race, sex, marital status, age, income, and job; and perhaps more specific questions that depend upon the case itself;
# beliefs and attitudes likely associated with a favorable or unfavorable verdict; and
# (after reading a summary of the facts of the case) which verdict the survey respondent would favor.
Diamond writes that jury consultants then compare the three data sets to determine which background characteristics correlate to favorable attitudes and verdicts, and which attitudes correlate to favorable verdicts. Attorneys can then use that information to select favorable jurors, based either on prospective jurors' characteristics or whatever an attorney can learn about jurors' attitudes. This has prompted the most frequent criticism of SJS: that consultants stack juries with inexorably biased or dumb jurors; in turn, practitioners insist this is impossible and that bias can only be removed from a jury pool. [Kressel and Kressel, pp 79-81]
An alternative is to test respondents at the researcher's facility with
opening statementsor a full-blown mock trialinstead of reading a case summary over the telephone. The higher cost of a mock trial allows for a more realistic portrayal of the real trial and (researchers hope) more accurate data. It also provides a better opportunity to question the subjects, before and after the trial simulation. On the other hand, telephone surveys provide a larger and more representative sample of the jury pool. Diamond indicates that since both methods have advantages, SJS practitioners commonly rely on both in the same case.
Besides the occasional astrologer or psychic, a few practitioners use unorthodox methods, such as in-courtroom assessment of posture, pupil dilation, or breathing to judge jurors both during selection and during trial. Though such methods have the veneer of science, psychologists reject them as nonsense and "science fiction". [Saul M. Kassin & Lawrence S. Wrightsman (1988). "The American Jury on Trial: Psychological Perspectives". Bristol, PA: Taylor & Francis, p. 58.] Notwithstanding this, Jo-Ellan Dimitrius (from the Simpson trial) indicates that she also relies on appearance, body language, conduct, and even smells such as perfume or medication. She sometimes decides based upon her "gut feeling" about a juror. [Kressel and Kressel, pp. 94–5. The Kressels are repeatedly quoting from Dimitrius' book, "Reading People", Ballantine Books (1998).]
Research psychologists Kassin and Wrightsman indicate that the model employed (demographic factors predict attitudes that predict verdicts) has empirical weaknesses. That attitudes predict verdicts is taken for granted and rarely studied. For example, veterans might favor current troops, but that does not necessarily translate into a likelihood to acquit their brethren of crimes. However, the relationship between demographics and verdicts can be more reliably predicted by mock trials.Kassin and Wrightsman, p. 61.] Successful prediction of jury verdicts often requires data specific to the case and jurisdiction. The sheer number of ways that one case can be unique outstrips the published research on the subject, so
original researchis often required. That necessity is exacerbated by the fact that many modern consultants are reluctant to share knowledge, even with other firms, because of paranoia, client confidentiality, and their regard for their work as " trade secrets". [Kressel and Kressel, p. 76.]
One important variation is "group dynamics analysis". Some jury selection is concerned with the attitudes and bias of individuals. Some trial consultants also try to predict how individuals will form themselves into groups in the jury and which jurors will become leaders and followers in those groups. Consultants also use this tool after jury selection is over. [Strier & Shestowsky, p. 455.]
Although advocates and practitioners of scientific jury selection claim the practice is overwhelmingly effective at choosing juries that will render the desired verdict, its true effect is often more difficult to discern. Part of this difficulty is in duplicating the conditions of a real trial. In one experiment, two kinds of shadow juries watched a trial and rendered a verdict. The results indicated that the juries were substantially different, but that this difference was likely due to the two experimental juries’ knowledge that they were not deciding an actual verdict, prompting a lower burden of proof. [Diamond, S.S., & Zeisel, H. (1974). "A courtroom experiment on juror selection and decision-making". "Personality and Social Psychology Bulletin", I: 276–7.]
Another simplified experiment indicated that lawyers trained in a systematic selection method made better predictions of juror verdicts in two of four cases – the sale of illegal drugs and a military court-martial (the other two cases were murder and drunk driving). The systematic method was more effective in those two cases where the predictive relationships between demographic variables and attitudes/verdicts were strongest, and least effective where such predictive relationships were weak or nonexistent. [Irwin A Horowitz (1980). "Juror Selection: A Comparison of Two Methods In Several Criminal Cases". "Journal of Applied Social Psychology" 10 (86).]
Some academic researchers argue that the actual efficacy of SJS is obscured by poor research
methodology. Specifically, demographic characteristics used to predict juror attitudes and juror verdicts may not hold true across all kinds of cases. For example, men convict more frequently than women in some types of criminal trials but less frequently in others. [Shell, Roberta Wyper. "Scientific Jury Selection: Does It Work?" "Barrister", Summer 1980, p. 47, citing Mills and Bohannon (1980), below.] Besides this, demographic characteristics are often less predictive than the attitudes jurors hold; for example attitudes towards rape are better verdict-predictors than gender in rape trials.Kressel and Kressel, p. 105.]
The actual efficacy of jury consultants may not be very important because the demographic composition of the jury has little effect on the verdict it renders, usually causing only a 5%–15% variance in verdicts.Solomon M. Fulero & Steven D. Penrod (1990). "Attorney Jury Selection Folklore: What Do They Think And How Can Psychologists Help?" "Forensic Reports" 3: 251, 252.] [Mills, C. J., and Bohannon, W. E. (1980). "Juror characteristics: To what extent are they related to jury verdicts?" "Judicature" 64: 22–31.] The evidence presented at trial has far more impact on what the verdict will be. As Kressel and Kressel indicate, "when the evidence is strong, nothing else matters much" and even when the evidence is ambiguous, demographic characteristics of jurors are a relatively minor influence. Some researchers argue that a significant improvement in jury selection, however small, may be worthwhile when the stakes are high, like for a defendant accused of a capital crime or a corporation that stands to lose millions of dollars in a civil suit.
A popular "proof is in the pudding" argument is often made, especially by consultants themselves; the argument goes that since attorneys and clients pay such high fees (sometimes as much as $500,000) for consultants, their services must be effective.Randolph N Jonakait (2003). "The American Jury System." New Haven, Conn: Yale U. Press, p. 160] [Shell, p. 47] Others argue that most attorneys are unaware of the social science research on the topic.
The effectiveness of scientific jury selection has also been comparison tested against other methods, such as attorney folklore and intuition. For trial attorneys, justifying the expense of SJS is contingent upon an improvement of their own jury selection abilities. Several empirical studies of traditional jury selection (by attorneys acting alone) have indicated that it and SJS are about equally effective. [Robert MacCoun  . "Inside the Black Box: What Empirical Research Tells Us about Decisionmaking by Civil Juries". In Robert E Litan: "Verdict: Assessing the Civil Jury System". Washington D.C.: The Brookings Institution, p. 151] [ Broeder, D. W. (1965). "Voir dire examination: An empirical study". "Southern California Law Review" 38 (744–61), p. 528.]
In light of the criticisms leveled against scientific jury selection — that it lets lawyers stack juries and distorts the effect of money — several reforms have been proposed. One common reform proposal is the elimination of peremptory challenges. Supreme Court precedent already forbids use of peremptories (peremptory challenges) to exclude jurors based solely on their race or sex.fn|1 Proponents argue that doing away with peremptories altogether will eliminate the perceived and real injustice of permitting lawyers to eliminate jurors dispositionally unfavorable to them without a challenge for cause argument in open court. Opponents counter that attorneys cannot always ferret out actionable evidence of juror bias, particularly in the context of a limited voir dire. [Strier & Shestowsky, pp. 483–4.]
Other proposals include: [Jonakait, pp. 163–5, 170–2.]
*"lower the number of peremptories" to force attorneys to use them only on the most clearly biased jurors and severely curtail their ability to "shape" the jury with peremptory challenges.
*"ban jury consulting" through legislative action, though it may be impossible to fairly draw a line that excludes SJS but doesn't exclude advice from other attorneys in the same firm, for example.
*"limit useful information" by severely curtailing verbal questioning and written questionnaires of prospective jurors. This may have the perverse effect of encouraging many erroneous Batson challenges based solely on race or gender instead of more sophisticated metrics of bias.
*"prohibit investigation" of the jury pool or release the list of prospective jurors on the eve of jury selection to make investigation of prospective jurors impossible.
*"force disclosure" of consultant use by making surveys of prospective jurors or the community discoverable by (legally accessible to) the opposing party. If consultants' research is discoverable, each party could use and benefit from their research.
Despite serious discussion among lawyers, scholars, legislators, and others about various reform proposals, none have been implemented and no consensus exists about which remedy, if any, would be the most appropriate and effective. [See, for example, Strier & Shestowsky, pp. 480-495.]
The two major fictional representations to date have both portrayed jury consultants as villains that are highly effective at influencing the jury. Consultants are major characters in
John Grisham's novel " The Runaway Jury" and the similar film adaptation. In the film, Rankin Fitch, "jury consultant for the defense," leads a team that uses high technology and sometimes-illegal tactics to prevent a judgment against their corporate client in what Salon calls "our worst nightmare of corporate arm-twisting." [Charles Taylor. " [http://dir.salon.com/story/ent/movies/review/2003/10/17/runaway/index.html?CP=IMD&DN=110 Runaway Jury] ". Salon.com. October 17, 2003.] Writing about the book, Kressel and Kressel say Grisham "plays on fears that the American justice system has been hijacked by crafty attorneys and immensely effective hired-gun social scientists." [Kressel and Kressel, p. 71.] Jean Hanff Korelitz's "A Jury of Her Peers" stretches the known reality of consulting much further. Korelitz's fictional consultants are part of an unscrupulous firm that charges prosecutors to kidnap homeless people, program them with drugs into conviction-only jurors, and substitute them for those hoping to avoid jury duty. Jonakait says the novel is "hardly realistic" but "reveals the distrust engendered by jury consultants." [Jonakait, p. 163.]
Batson v. Kentucky" (1986) is the seminal case in this area, finding race-based use of peremptory challenges by prosecutors unconstitutional. " Georgia v. McCollum" (1992) extended the same prohibition to defense attorneys. The relevant precedents in civil law are " Edmonson v. Leesville Concrete Company" (1991) (regarding race) and " J.E.B. v. Alabama" (1994) (regarding gender).
* Abramson, Jeffrey. (1994) "We, the Jury: The Jury System and the Ideal of Democracy", Chapter Four: "Scientific Jury Selection". New York: BasicBooks. ISBN 0674004302
* Lieberman, Joel D. & Bruce D. Sales. (2006) "Scientific Jury Selection (Law and Public Policy: Psychology and the Social Sciences)." American Psychological Association (APA) ISBN 1591474272
* [http://www.astcweb.org/ American Association of Trial Consultants]
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