Results from experimental trials testing participant responses to White, Hispanic and Black suspects in high-fidelity deadly force judgment and decision-making simulations

Objective

Advance the methodological techniques used to examine the influence of suspect race and ethnicity on participant decisions to shoot in an experimental setting.

Methods

After developing and testing a novel set of 60 realistic, high definition video deadly force scenarios based on 30 years of official data on officer-involved shootings in the United States, three separate experiments were conducted testing police (n?=?36), civilian (n=?72) and military (n?=?6) responses (n?=?1,812) to the scenarios in high-fidelity computerized training simulators. Participants’ responses to White, Black and Hispanic suspects in potentially deadly situations were analyzed using a multi-level mixed methods strategy. Key response variables were reaction time to shoot and shooting errors.

Results

In all three experiments using a more externally valid research method than previous studies, we found that participants took longer to shoot Black suspects than White or Hispanic suspects. In addition, where errors were made, participants across experiments were more likely to shoot unarmed White suspects than unarmed Black or Hispanic suspects, and were more likely to fail to shoot armed Black suspects than armed White or Hispanic suspects. In sum, this research found that participants displayed significant bias favoring Black suspects in their decisions to shoot.

Conclusions

The results of these three experiments challenge the results of less robust experimental designs and shed additional light on the broad issue of the role that status characteristics, such as race and ethnicity, play in the criminal justice system. Future research should explore the generalizability of these findings, determine whether bias favoring Black suspects is a consequence of administrative measures (e.g., education, training, policies, and laws), and identify the cognitive processes that underlie this phenomenon.     

Racial and ethnic disparities in police-reported intimate partner violence perpetration: a mixed methods approach

The objectives of this study were to examine racial and ethnic disparities in perpetrator and incident characteristics and discrepancies between police charges and reported perpetrator behaviors in police-reported intimate partner violence (IPV). This cross-sectional study used standardized police data and victim narratives of IPV incidents reported to the police in Dallas, Texas in 2004. The sample included non-Hispanic White, non-Hispanic Black, and Hispanic male perpetrators who were residents of Dallas (N = 4470). Offense charges were prioritized in descending order: sexual assault, aggravated assault, simple assault, kidnapping, robbery, and intimidation. Textual data from the victim narratives were coded, based on the revised Conflict Tactics Scales (CTS), and categorized in descending order of priority: sexual (severe, minor), physical (severe, minor), and psychological (severe, minor) assault. Perpetrators were more likely to be Black and Hispanic. Perpetrator and incident characteristics varied significantly by race/ethnicity, particularly age, age difference between partners, marital status, injury, and interracial relationships. Qualitative data revealed that greater proportions of Black and Hispanic men perpetrated severe physical, but not sexual violence, compared with White men. The greatest disparity between CTS categories and police charges occurred among those cases identified by the CTS as severe physical IPV; 84% were charged with simple assault. Significant differences by race/ethnicity were found only for simple assault charges, which were coded as severe physical as opposed to minor physical IPV more often among Black (69% and 31%) compared with White (62% and 38%) men. The disparities revealed in this study highlight the need to enhance primary and secondary prevention efforts within Black and Hispanic communities and to increase linkages between police, community, and public health organizations.     

The use of material culture to establish the ethnic identity of victims in genocide investigations: a validation study from the American Southwest*

Successful prosecution of genocide requires that the victims constitute one of four protected groups: national, religious, ethnic, or racial. Establishing victim identity in prior trials has relied on positive identification of decedents, been largely presumptive, or was based on untested methodology. This report details a validation study of one untested method: the use of material culture in establishing ethnic identity. Classes of clothing and personal effects were scored on 3,430 individuals of known Hispanic or White ancestry from autopsy records in New Mexico. Significant differences were seen in evidence of language, nationality, and religious affiliation between the two groups, as well as clothing types and currency. Predictive models used to estimate ethnic identity in random, blind subsets produced an overall accuracy of 81.5% and estimates of 61-98% in specific subsets. Results suggest material culture, when present, can provide reliable evidence of ethnic affinity in genocide investigations.     

Methadone and EDDP in hair from human subjects following a maintenance program: results of a pilot study

A specific method has been developed for the quantitative determination of methadone (MTD) and its major metabolite, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP), in hair.An amount of 50mg hair samples were incubated in 0.01M HCl overnight at 60 degrees C and deuterated internal standards of MTD and EDDP were added before extraction. Hydrolyzed solutions were extracted by automated solid-phase extraction procedure and analyzed on a gas chromatography (GC) coupled to a ion trap mass spectrometer (MS). Positive chemical ionization was used with acetonitrile as liquid reagent. The different validation parameters, linearity, repeatability, recovery and detection limits are presented. A relative standard deviation (R.S.D.) of 12 and 11% was obtained for the repeatability of MTD and EDDP, respectively. The limits of quantification (LOQ) was 0.05ng/mg for MTD and 0.2ng/mg for EDDP.A number of 26 hair samples from human subjects following a long-term MTD therapy were analyzed by this method. Blood samples of these subjects were analyzed with a routine method using a liquid-liquid extraction and GC/nitrogen phosphorus detector (NPD). MTD was quantified in blood and hair samples and EDDP found in 50% of the hair sample.A comparison was made between the concentrations found in blood or in hair and the dose administrated. This study could demonstrate that there is no relation between the administrated dose and MTD or EDDP concentrations in hair.     

Working with sex offenders in a climate of public blame and anxiety: How to make defensible decisions for risk

Abstract

Work with sex offenders takes place in a climate of public blame and anxiety. This requires practitioners to adopt the highest standards of practice to ensure that defensible decisions are made. These are decisions that must withstand hindsight scrutiny in the light of a risk management failure. This paper reviews the key practice points that will assist practitioners in making defensible decisions, and the key challenges for practitioners in this challenging area of work.     

Revictimization and self-harm in females who experienced childhood sexual abuse: results from a prospective study

Lifetime trauma histories were ascertained for females with confirmed histories of childhood sexual abuse and comparison females participating in a longitudinal, prospective study. Abused participants reported twice as many subsequent rapes or sexual assaults (p = .07), 1.6 times as many physical affronts including domestic violence (p = .01), almost four times as many incidences of self-inflicted harm (p = .002), and more than 20% more subsequent, significant lifetime traumas (p = .04) than did comparison participants. Sexual revictimization was positively correlated with posttraumatic stress disorder symptoms (PTSD), peritraumatic dissociation, and sexual preoccupation. Physical revictimization was positively correlated with PTSD symptoms, pathological dissociation, and sexually permissive attitudes. Self-harm was positively correlated with both peritraumatic and pathological dissociation. Competing theoretical explanations for revictimization and self-harm are discussed and evaluated.     

Prevalence and mental health correlates of harassment and discrimination in the workplace: results from a national study

This study describes past-year prevalence and effects on mental health and drinking outcomes for harassment and discrimination in the workplace (HDW) in a nationally representative random digit dial phone survey conducted in 2003-2004 (n = 2,151). HDW measures included experiences and perceptions of sexual harassment (SH) and generalized workplace harassment (GWH), and perceived harassment or discrimination because of race or ethnicity. Prevalence was examined by sex, race, age, occupation, marital status, and education. Effects of HDW were assessed controlling for demo-graphics and job and life stressors. Experiencing multiple types of HDW was common. SH was more prevalent among women, and Blacks and those of other or mixed race or ethnicity experienced the highest levels of HDW overall. HDW variables explained additional variance in problem drinking and mental health beyond life and job stressors, particularly for women. This study demonstrates that HDW is a prevalent problem associated with poor mental health and problem drinking in the U.S. workforce.     

Homicides in East Berlin from 1980 to 1989. Part II: results of investigations and legal consequences

The second part of the study on homicides in East Berlin from 1980 to 1989 describes the solving of crimes, the usual features of offenders and the legal assessment according to East German law. Of the 139 homicides 126 crimes (= 90.6%) could be solved. Most of the offenders had a low social background and often belonged to the victim's circle of friends or family. Situational homicides and elimination crimes were the most common crimes. In the legal assessment sentences for murder were predominant.     

Reducing intimate and paying partner violence against women who exchange sex in Mongolia: results from a randomized clinical trial

Women who exchange sex for money or other goods, that is, female sex workers, are at increased risk of experiencing physical and sexual violence from both paying and intimate partners. Exposure to violence can be exacerbated by alcohol use and HIV/STI risk. The purpose of this study is to examine the efficacy of a HIV/STI risk reduction and enhanced HIV/STI risk reduction intervention at decreasing paying and intimate partner violence against Mongolian women who exchange sex and engage in harmful alcohol use. Women are recruited and randomized to either (a) four sessions of a relationship-based HIV/STI risk reduction intervention (n = 49), (b) the same HIV/STI risk reduction intervention plus two additional motivational interviewing sessions (n = 58), or (c) a four session control condition focused on wellness promotion (n = 59). All the respondents complete assessments at baseline (preintervention) as well as at immediate posttest, 3 and 6 months postintervention. A multilevel logistic model finds that women who participated in the HIV/STI risk reduction group (OR = 0.14, p < .00), HIV/STI risk reduction and motivational interview group (OR = 0.46, p = .02), and wellness (OR = 0.20, p < .00) group reduced their exposure to physical and sexual violence in the past 90 days. No significant differences in effects are observed between conditions. This study demonstrates the efficacy of a relationship-based HIV/STI risk reduction intervention, a relationship-based HIV/STI risk reduction intervention combined with motivational interviewing, and a wellness promotion intervention in reducing intimate and paying partner violence against women who exchange sex in Mongolia. The findings have significant implications for the impact of minimal intervention and the potential role of peer networks and social support in reducing women's experiences of violence in resource poor settings.     

Understanding of and memory for a complex auditory event: an experimental case study to resolve an evidentiary issue in a trial

While many studies have focused on eyewitness’ perception and memory, few studies on earwitness’ ability to understand and remember complex sound events have been conducted. The present study included 73 participants and explored whether it is possible for children and adults to understand and later recall a complex sound event. The aim was to resolve an evidentiary issue in a trial concerning a 7-year-old child’s earwitness testimony and whether is it possible to understand a complex sound environment based solely on aural perception. The participants listened to a recording that replicated the aurally perceived situation described by the child witness in his testimony. The results showed, that adults and children could identify only a few, familiar sounds of the 16 sounds presented in free recall. They recognized the correct sounds poorly (51.9% vs. chance level of 50%): significantly better than chance only if the retention interval was immediate and the sounds could be heard clearly (57.5%). The results suggest that the participants were not able to understand what was transpiring and, thus, could not later recall the sound events. The findings highlight that understanding this kind of a complex sound event is a difficult task and that the experimental role of a witness psychologist is valuable for resolving evidentiary issues for the court. The implications for the case and the limitations of the study were discussed.     

Context effects in forensic science: a review and application of the science of science to crime laboratory practice in the United States.

This article discusses the phenomenon of "context effects" by reviewing the findings and practices of a range of scientific fields, including astronomy, physics, biology, medicine, and especially the relevant research and theory from psychology. Context information, such as expectations about what one is supposed to see or conclude, has been found to have a small but relentless impact on human perception, judgment, and decision-making. The article then considers the vulnerability of forensic science practice to context effects, and concludes by suggesting that forensic science adopt practices familiar in other fields of scientific work, in particular blind or double-blind testing and also the use of evidence line-ups.     

Assessment of exposure to opiates and cocaine during pregnancy in a Mediterranean city: preliminary results of the "Meconium Project"

For the first time in Europe, the "Meconium Project" aimed to estimate the prevalence of drug use by pregnant women and the effects of exposure to illicit drugs during pregnancy on the fetus and infant. Between October 2002 and February 2004, 1151 (79%) dyads among the 1439 mother-infant dyads from the Hospital del Mar, Barcelona, Spain, met eligibility criteria and agreed to participate in the study. We present preliminary results on the first 830 meconium samples and 549 mother-infant dyads, for which statistical analysis of socio-economic and demographic characteristics and newborn somatometry was completed. The meconium analysis showed an overall 7.9% positivity for drugs of abuse, with 6-monoacetylmorphine and cocaine being the analytes, most frequently found in samples positive for opiates and cocaine. Structured interview disclosed 1.3, 1.8 and 1.3% of mothers exposed to opiates, cocaine and both drugs, while only one mother declared ecstasy consumption. Meconium analysis showed that prevalence of opiates, cocaine and combined drugs exposure was 8.7, 4.4 and 2.2%, respectively, and confirmed the case of ecstasy use. Arecoline, the main areca nut alkaloid, was found in meconium specimens from four Asiatic newborns, whose mothers declared beetle nut consumption during pregnancy. Parental ethnicity was not associated with drug use, nor was the social class, although a higher tendency toward drug consumption was observed in professional and partly skilled mothers. Drug consuming mothers showed a higher number of previous pregnancies and abortions (p<0.05) when compared to non-consumer mothers (meconium negative test), probably due to a lack of family planning. Consumption of opiates and cocaine during pregnancy was associated with active tobacco smoking, a higher number of smoked cigarettes and cannabis use. Exposure status and smoking behavior correlated with significantly lower birth weight in newborns from mothers exposed only to cocaine and to opiates and cocaine simultaneously. Of the four newborns exposed to arecoline, one showed a low birth weight, low intrauterine growth, hyporeflexia and hypotonia.     

Past and future of burden sharing in the climate regime: positions and ambition from a top-down to a bottom-up governance system

International Environmental Agreements: Politics, Law and Economics - Historically, burden sharing of mitigation in the climate regime was operationalized as a binary division of the world between...     

Effects of childhood adversity on bullying and cruelty to animals in the United States: findings from a national sample

This study examined effects of type of and cumulative burden of childhood adversities on bullying and cruelty to animals in the United States. Data were derived from Waves I and II of the National Epidemiologic Survey on Alcohol and Related Conditions, a nationally representative sample of U.S. adults. Structured psychiatric interviews were completed by trained lay interviewers between 2001-2002 and 2003-2004. Although the effects of childhood adversity diminished with the inclusion of confounding variables, several adversities remained significant. For bullying, these included being made to do chores that were too difficult or dangerous, threatening to hit or throw something, pushing, shoving, slapping, or hitting, and hitting that left bruises, marks, or injuries. With respect to cruelty to animals, swearing and saying hurtful things, having a parent or other adult living within the home that went to jail or prison, and adult/other person fondling/touching in a sexual way were significant. The final models indicated that the cumulative burden of childhood adversities had strong effects on the increased likelihood of bullying behavior but not cruelty to animals.     

Access to justice and the need for a holistic approach to the delivery of legal aid services in developing countries: Lessons from South Africa

Jindal Global Law Review - Legal Aid South Africa, in its previous incarnation as the Legal Aid Board, was established in 1969, and began operating in 1971. During the apartheid era the scheme had...     

Methodological review of ‘the incidence and prevalence of woman abuse in Canadian university and college dating relationships: Preliminary results from a national survey,’ by Walter S. DeKeseredy and Katharine Kelly

This essay reviews and assesses the methods used to conduct the National Study of Woman Abuse in University and College Dating Relationship. Funded by Health and Welfare Canada, Walter S. DeKeseredy and Katharine Kelly surveyed 1,835 females and 1,307 males in a stratified multi-stage cluster sample enrolled in University and College courses across the country in 1992. This essay examines the sampling design, reported response rates, data collection methods and frequency estimates of the study carried out by these two researchers in conjunction with the Institute for Social Research at York University. It is noted that while there are certain methodological difficulties associated with the study, these are problems that any survey of this type might encounter. The review of the methods suggests that while perfect surveys are not possible, good surveys are. The essay concludes with the observation that this survey should be qualified as the latter.     

Tarasoff in Missouri: The jurisprudence of a mental health provider's duty to warn and protect non-patients of potential risks from patients

In 1976, the Supreme Court of California issued its well-known Tarasoff Principle. From this principle, other courts found a duty to warn, and some found more than just a duty to warn, a duty to protect. As courts in other states adopted a version of the Tarasoff Principle, they issued a wide variety of third-party liability rules. In light of the dynamic, everchanging Tarasoff jurisprudence in the United States and recent relevant appellate court opinion in Missouri, a timely updated summary and update of Tarasoff-related jurisprudence in Missouri is warranted. In the present analysis, we compiled the four appellate court decisions that pertained to the questions of Tarasoff-like third-party liability in the State of Missouri: Sherrill v. Wilson (1983), Matt v. Burrell (1995), Bradley v. Ray (1995), and Virgin v. Hopewell (2001). We reviewed all legal measures for clinicians to protect nonpatients in Missouri, not just those that relate to protecting nonpatients from violence as in a Tarasof-like scenario. Thus, this paper concisely provides a compendium of such options and allows for a meaningful comparison of which legal, protective measures are mandatory and which are permissive, thereby evoking the question of whether measures of protecting nonpatients from a patient's violent acts ought to be mandatory duties or permissive application of professional judgment.