A Profile of Hung Juries
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Volume 9 • Number 1 CASELOAD HIGHLIGHTS EXAMINING THE WORK OF STATE COURTS A Profile of Hung Juries Jury trials are held in open ways. First, they challenge plex legal and evidentiary state courts between 1996 court, but jury deliberations perceptions about the cred- issues. This issue of Case- and 1998. Approximately can be mysterious, especially ibility and fairness of the load Highlights profiles the 70 percent of the 1.2 million when the jury “hangs.” A legal process. Beyond issues circumstances surrounding cases examined ended in a jury “hangs,” or is “dead- of basic justice, jury trials are hung juries. guilty plea, about 24 percent locked,” if jurors cannot expensive and require consid- were dismissed or disposed agree upon a verdict: the erable time and resources The National Center for State as an “other” disposition result is mistrial.1 Hung from the judge, court staff, Courts (NCSC) recently (e.g., diversion to an alterna- juries threaten court and legal counsel, litigants, and completed a national exami- tive court program such as a public interests in several witnesses. Finally, hung nation of hung juries, the drug court or transfers to a juries raise questions about first such cross-jurisdictional federal court), and less than 1 A judge may also declare a mistrial due to prejudicial error or an extradordinary event. juror abilities to handle com- study in nearly forty years. 3 percent were resolved by The background of the NCSC jury trial. Of the 33,000 study and methods used are cases disposed by a jury discussed to the left. trial, about 1,600, or 6 per- Study Background & Methods cent, “hung.” Regardless of The following figure shows whether resolved by bench The results presented in this Caseload Highlights are derived the manner in which felony or jury, about three-quarters from a 2002 National Center for State Courts’ study covering cases were resolved in 30 of trials end in conviction. 32 counties across 14 states and all federal circuit courts in two separate phases. The project was funded by the National Institute of Justice with the first results presented in Are Hung Juries a Problem? 2 The purpose of the study was to conduct State Felony Dispositions in 30 Counties, 1996-1998 a comprehensive analysis of the factors that relate to hung juries and determine how often juries hang and why. Total Felony Dispositions: 1,198,338 In the first stage of the project, NCSC compiled aggregate Bench Trial: 51,535 Jury Trial: 32,753 civil and criminal data from 1980 through 1997 for all 12 Dismissed: 123,561 federal circuit courts from the Administrative Office of the Convicted 71% U.S. Courts. In addition, NCSC assembled wide-ranging data Acquitted 19% Hung from the state courts and prosecutors’ offices supplemented Other: 168,120 6% Other Mistrials 4% with information from annual reports. These data covered 30 courts between 1996 and 1998 on state felony criminal trials. In the second stage of the study, researchers conducted an in- depth review of four sites on nearly 400 felony trials. In this phase, NCSC collected detailed data on felony jury trials that hung or ended in a verdict. NCSC surveyed jurors, judges, Guilty Pleas: 822,369 and attorneys to examine case characteristics and jury behav- ior across dispositions (hung or verdict) and compare hung jury rates across jurisdictions using comparable definitions. 2 Paula L. Hannaford-Agor et al., Are Hung Juries a Problem? National Center for State Courts, at http://www.ncsconline.org/WC/Publications/Res_Juries_HungJuriesPub.pdf. National Center for State Courts • Brian J. Ostrom, Project Director • Nicole L. Mott, Neal B. Kauder, Brian J. Ostrom, and Paula L. Hannaford-Agor, Authors May 2003 A Profile of Hung Juries, continued I How Often Do Hung Juries Occur? Past reports are scarce, but time and between localities. Compared to the state rate of It should be noted that the suggest considerable variation The first phase of the cur- 6.2 percent, the federal hung federal D.C. Circuit Court in rates of hung juries. In rent NCSC study confirms jury trial rate for criminal reports a much higher hung 1966, Kalven and Zeisel re- these earlier findings. The cases averages 2.5 percent. jury rate of 9.5 percent (a ported an average criminal average hung jury rate across The federal Administrative clear exception to the other hung jury rate of 5.5 percent all 30 sites was 6.2 percent, Office of the Courts’ central- 11 federal districts). One nationwide of all jury trials.3 with slightly higher rates ized data system makes it potential explanation for this The only other empirical study ranging from 8 percent to possible to examine federal difference is the demographic of hung jury rates was con- 14.8 percent in 5 of the 6 rates over time. The trend characteristics of the court’s ducted in 10 California coun- California counties. The lines below show fairly jurisdiction; the D.C. court is ties in 1975 by the Planning figure below displays the stable rates from 1980 to the only federal circuit court and Management Consulting individual jurisdictional rates 1997 for both civil and that comprises a single, Corporation.4 They reported a and shows the variation criminal trials. highly urbanized city. All 12.2 percent hung jury rate, across counties. other federal circuits encom- with significant variations over pass multiple states. 3 Harry Kalven & Hans Zeisel, THE AMERICAN JURY 453 (1966). 4 Planning & Management Consulting Corporation, Empirical Study of Frequency of Occurrence Cases Effects and Amount of Time Consumed by Hung Juries, 4-30 to 4-37 (1975). State Hung Jury Rates (Average 1996-1998) Federal Hung Jury Rates (1980-1997) Los Angeles, CA 4% Shelby, TN Alameda, CA Travis, TX 3% New York, NY Criminal Riverside, CA Santa Clara, CA 2% Fresno, CA Total Harris, TX Wayne, MI 1% Civil Middlesex, NJ Dallas, TX Kings, NY 0% Westchester, NY 1980 1984 1988 1992 1997 Erie, NY Queens, NY Pima, AZ Bronx, NY Suffolk, NY San Francisco, CA St. Louis, MO Monroe, NY Nassau, NY Philadelphia, PA Macomb, MI Hennepin, MN Fulton, GA Pinellas, FL Oakland, MI Pierce, WA 0% 3% 6% 9% 12% 15% Note: Differences exist in the way courts calculated hung jury rates. A Closer Look at Four Large Courts Most courts do not systemati- yields lower rates. To make a hung on the most serious What Characterizes cally track hung jury out- fair comparison, in-depth charge facing the defendant in Hung Juries? comes in their automated data from the four sites were about 10 percent of the cases. case management systems. examined using three defini- To better understand the Many courts do not consider tional “levels”—determined Hung jury rates varied across circumstances and character- a hung jury to be a final if the jury hung on: the jurisdictions regardless of istics of hung juries, numer- disposition, but rather an 1. Any count against the which definition was used. ous social and legal factors intermediate case status. To defendant Rates of hung juries were were analyzed across the overcome difficulties of com- 2. The most serious count highest in the D.C. Superior four selected sites. NCSC parisons, NCSC obtained against the defendant Court at about 22.3 percent, examined demographic fac- detailed data on 382 felony 3. All counts against the followed closely by Los An- tors such as juror race and jury trials from Los Angeles, defendant geles County at 19.5 percent. general juror attitudes on CA; Maricopa, AZ; Bronx, Rates were lowest in the such issues as police, courts, NY; and the District of Co- As seen below, the first defini- Bronx Supreme Court where and crime in the community. lumbia.5 Los Angeles and tion yielded the highest rates– just three of 97 jury trials Specific attitudes relating to D.C. participated in the study almost 13 percent of the juries ended in a hung jury (3.1 per- the case at hand—law, evi- due to concerns over high hung on at least one count. cent). In these three cases, dentiary issues, and interper- hung jury rates, Maricopa’s The most restrictive defini- the jury hung on all counts sonal small-group dynam- participation allowed NCSC tion, where the jury hangs on faced by the defendant, so the ics—were also analyzed and to evaluate recent trial inno- all counts, occurred in 7.5 hung jury rate was identical found to be especially criti- vations, and the Bronx courts percent of the cases. Juries across all three definitions. cal in predicting the likeli- were solicited, in part, due hood of a hung jury. to the high volume of trials. Thus, these four sites were Hung Jury Rates in Four Sites The legal fairness, eviden- not intended to be representa- tiary, and jury dynamic tive of courts nationwide. Bronx 3.1% 3.1% issues are discussed on I Hung on all counts 3.1% the following two pages. Definitional differences are I Hung on most serious count one reason hung jury rates I Hung on any count Maricopa 3.3% vary. That is, a broader defi- 5.1% nition captures higher rates, 7.7% while a more restrictive one Los Angeles 11.7% 16.2% 19.5% District of 12.8% 5 The courts and corresponding dates for data Columbia collection were as follows: the Central 16% Division, Criminal, of the Los Angeles County 22.3% Superior Court, CA, June–October 2000; the Maricopa County Superior Court (Phoenix), AZ, November 2000–October 2001; the Bronx County Supreme Court, NY, February–August 2001; and the Superior Court of the District of All Sites 7.7% Columbia, April–August 2001.