Putrefaction and wound dehiscence: a potentially confusing postmortem phenomenon

The decomposed body of a 49-year-old man was found at his home address. At autopsy, 3 incised wounds of the lower abdomen and groins were identified, raising the possibility of some form of inflicted injury. Further dissection revealed that the wounds were healing surgical incisions that had been forced open by putrefactive tissue breakdown, swelling, and gas formation. Death was due to ischemic heart disease. Putrefaction is a common problem encountered in forensic practice that may result in considerable distortion and modification of tissues. Unusual skin lesions caused by the disruption and dehiscence of healing surgical wounds may be created by decomposition. This possibility should be considered when symmetrical, cleanly incised wounds are identified.     

Interviewing to Elicit Cues to Deception: Improving Strategic Use of Evidence with General-To-Specific Framing of Evidence

Previous research has demonstrated that the strategic use of evidence (SUE) approach of interviewing criminal suspects is effective at eliciting cues to deception. This study aims at expanding on the SUE approach by testing the technique of general-to-specific evidence framing. We conducted an experiment using a mock terrorism paradigm. Guilty participants took part in a simulated act of terrorism, while innocent participants performed a similar act involving no transgression. All participants (N?=?102) were then interviewed using one of four evidence disclosure styles (early disclosure, late disclosure, 2-step disclosure, or 4-step disclosure). We expected that disclosing evidence to the suspect gradually, with increasing specificity, would induce guilty suspects to alter their statements to a greater extent than innocent suspects. General-to-specific evidence framing effectively discriminated between guilty and innocent suspects, but results only partially supported the hypotheses.     

THE COGNITIVE INTERVIEW AND ITS EFFECT ON WITNESSES’ CONFIDENCE

Today there is ample evidence that the Cognitive Interview (CI) enhances witnesses’ memory. However, less is known about how the CI affects eyewitnesses’ confidence. To address this shortcoming we conducted a study analyzing how realism in confidence was affected by the CI. All participants (n=79) were first shown a filmed kidnapping. After 2 weeks we interviewed one-third of the participants according to the guidelines of the CI, one-third according to a Standard Interview (SI), and one-third were not interviewed at all (Control condition). Participants in all three conditions were then asked to answer 45 forced-choice questions, and to give a confidence judgment after each choice. For the 45 questions, no differences in accuracy were found between the three conditions. Confidence was higher in the CI and SI conditions, compared with the Control condition. CI and SI did not differ in metacognitive realism but both showed lower realism compared with the Control condition, although only CI significantly so. The results indicate that the inflation in confidence is more likely to be explained in terms of a reiteration effect, than as a consequence of the particular mnemonics characterizing the CI (e.g. “mental reinstatement of context”). In sum, CI does not seem to impair (or improve) the realism in witnesses’ confidence, and does not inflate confidence in erroneous recall, compared to a SI.     

Effects of preconceptions on deception detection and new answers to why lie-catchers often fail

Abstract

This study investigated the extent to which crediting and discrediting background information, given to observers before they watched three video-taped interviews with the same witness, affected their veracity judgments. Our analyses show that the observers' distribution of truth/lie-judgments were more affected by crediting than discrediting background information. We also mapped the subjective cues given to justify the truth/lie-judgments, and found that the most frequently used cue was whether or not the three statements were consistent over time. In addition, our analysis revealed two types of inter-observer disagreements. One type referred to how different cues were perceived (e.g., forty observers perceived the three statements as being inconsistent over time while an equal number perceived the same three statements as being consistent over time). The second type referred to how different cues were used (e.g., the fact that the witness was perceived as not being confident in his testimony worked against him equally as often as it worked for him).     

A “weapon focus” effect in children

In this paper we examined beliefs about deception held by legal professionals. Three groups of presumed expert lie-catchers were investigated: police officers ( n =104), prosecutors ( n =158), and judges ( n =251). The experts' beliefs about deception were remarkably inconsistent with the general pattern resulting from studies mapping actual cues to deception. For example, a majority of police officers believed there is a strong relationship between (a) deceptive behaviour and gaze aversion and (b) deceptive behaviour and an increase in body movements. The scientific literature does not support this view. Furthermore, all three professional groups believed that truthful consecutive statements are more consistent than deceptive, and that it is easier to detect deception in interactive than non-interactive contexts. Research on deception shows the opposite. For five of the seven investigated items we found significant between-group differences. Both the genesis and the implications of these differences are discussed. Judging from self-ratings, the presumed experts admitted knowing close to nothing about scientific research on deception.     

Guilty and innocent suspects’ strategies during police interrogations

Abstract

Deception detection has largely failed to investigate guilty and innocent suspects’ strategies. In this study, mock suspects (n=82) were interrogated by police trainees (n=82) who either were or were not trained in the technique to strategically use the evidence (the SUE technique). Analyses revealed that guilty suspects to a higher degree than innocent suspects applied strategies in order to appear truthful. Guilty suspects reported diverse strategies, while innocent suspects reported the strategy to tell the truth like it had happened, indicating a belief in the visibility of innocence. The realism in the suspects’ expectation about how their veracity was judged was largely dependent on the way in which they had been interrogated. The truth-telling suspects who were interrogated according to the SUE technique were optimistic about being judged as truthful; this optimism was warranted as the vast majority of them were classified as truthful. The SUE technique seems to help (a) spotting guilty suspects without them being aware of it and (b) spotting innocent suspects, and they become aware of it. That innocent (but not guilty) suspects can read how the interrogator views them is advantageous for the investigative process.     

Alcohol intoxicated eyewitnesses' memory of intimate partner violence

Alcohol affects memory in many, and mostly negative, ways. This is a problem in legal contexts as many witnesses are alcohol intoxicated when taking part of the critical event. However, research is sparse regarding how, and under what circumstances, the reports of alcohol intoxicated witnesses differ from those of sober witnesses. This study investigated whether alcohol intoxicated and sober eyewitnesses differ regarding completeness, accuracy, and type of information reported, as well as whether gender influenced these variables. Eighty-seven healthy men (n = 44) and women (n = 43) received either an alcoholic beverage (0.7 g/kg) or a control (juice) in a laboratory setting before viewing a film picturing intimate partner violence. Ten minutes after viewing the film, they were interviewed. Reports by alcohol intoxicated women were less complete, but as accurate, as sober women's. In contrast, intoxicated and sober men did not differ regarding completeness or accuracy. Furthermore, compared with sober women, intoxicated women reported fewer actions but no difference was found between the groups regarding reported objects. At this moderate dose, alcohol affected women's reports more than men's, which may be because alcohol affects attention and memory consolidation more clearly at a lower dose for women than for men.     

Sergey Glazyev and the revival of Soviet economics

A veteran Western observer and authority on Russia's political economy examines the recent debate on economic growth in Russia. Focusing on Sergey Glazyev, a prominent statist and nationalist favored by President Vladimir Putin, who reemerged at the top of the public debate, the author discusses the essence of his ideas (state capitalism, Eurasian integration, and expansionary fiscal and monetary policy). He proceeds to analyze the critical response of liberals, citing inter alia objections to loose fiscal and monetary policies. Russia's liberal economists favor broader international integration, whereas Putin is clearly in favor of state capitalism and Eurasian integration. This study ends with an up-to-date politico-economic assessment titled “Where is Putin going?”