Family Dysfunction and Social Isolation as Moderators Between Stress and Child Physical Abuse Risk

Stress is a significant contributor to child physical maltreatment risk. Family and social supports are expected, but less studied, risk factors. Little empirical support clarifies the interactive influence on abuse risk for non-abusive parents. This study examined whether the stress-abuse risk relation was moderated by family dysfunction and social isolation. Subjective appraisals of these factors were administered to 95 community mothers. After creating composite scores using factor loadings from a CFA, multiple regression analyses were conducted to predict abuse risk. As expected, stress predicted abuse risk, with social isolation and, to a lesser extent, family dysfunction serving as moderators. Perceived stress and dysfunctional supports are important, interactive predictors of abuse risk. Future directions consider interactions within other ecological levels.     

The parole hearing: Decision or justification?

A detailed content analysis of tape-recordings of 100 randomly selected California parole hearings revealed that these hearings take the form of short, unstructured diagnostic interviews in which the hearing officers ask questions of the prisoners who respond in a very minimal way. Different patterns of questioning and prisoner response occurred for hearings where the eventual decision was to grant parole as opposed to deny parole, and this decision outcome could be predicted with a high degree of accuracy by discriminant function analyses. In general, the hearing officers made their own psychological assessments of the prisoners, even though they lacked knowledge and training in this diagnostic skill. According to the results of this study, the parole decision-making process appears to be a reliable one, but nevertheless its validity is questionable.     

Assessing Pretrial Publicity Effects: Integrating Content Analytic Results

When a case has received pretrial publicity which has the capacity to bias potential jurors in the trial venue, a change of venue is one means of attempting to ensure that the defendant receives a fair trial. Content analysis of the pretrial publicity surrounding a case can provide the court with important information to consider when determining whether prejudice in the relevant community is too great for the defendant to receive a fair trial. This paper presents an approach to content analysis of pretrial publicity that draws upon both legal commentary and past empirical social science research. It is a systematic approach that could be employed by both the prosecution and defense when presenting arguments to the court about whether a change of venue should be granted. Information gleaned from content analysis of the publicity surrounding a specific case fills the gap between information provided by experimental research which has examined pretrial publicity effects and public opinion polls concerning the public's perception of the defendant in a particular case. Results from a content analysis can serve to validate public opinion survey data gathered from the same locales. To exemplify this content analytic approach, a content analysis conducted by the authors in preparation for the change of venue hearing in the case of Timothy McVeigh is presented.     

Evaluation of the Differex™ System

Differential extraction is an efficient method to separate sperm cells from epithelial cells. A manual Chelex^®-100 based method is used at the Swedish National Laboratory of Forensic Science, SKL. The Differex™ System (Promega) uses a Proteinase K digestion of epithelial cells followed by centrifugation and phase separation. The sperm- and epithelial fractions are further purified with DNA IQ™ System (Promega) or with phenol/chloroform. The Differex™ System in combination with DNA IQ™ System were evaluated and compared to the Chelex^®-100 method used routinely. After modifications, the Differex™ System gave comparable results to the Chelex^®-100 method. The modifications included additional Proteinase K and DTT, longer incubation time and additional steps when removing the solid support from the Digestion Solution. In the Chelex^®-100 based method microscopic examination is done on the sperm pellet in a total volume of 50 μl. It was not possible to do a microscopic examination in less than 100 μl using the Differex™ System. Additionally the sperms were in clusters of epithelial cell debris. Microscopic examination is an important part of the differential extraction at SKL. Therefore, the Differex™ System will not be implemented at our laboratory.     

Molecular study of time dependent changes in DNA stability in soil buried skeletal residues

Stamp marks are used as a unique identification for a range of items, but these can be erased for criminal activities. Erased marks can sometimes be recovered by etching or magnetic means. The present study looked at the application of Fry's reagent to recover erased marks from steel. The investigation also demonstrated that Fry's reagent can deteriorate on storing and will require a longer etching time. The effect of different applied forces of stamping was investigated, and the depth of the underlying deformation was determined by etching after varying degrees of metal removal. The amount of metal needing to be removed depends on the force applied to the die. Metal removal also affects the time needed for recovery. The underlying structural change remains as a hidden identification mark, and could potentially be used by manufacturers as an unseen identifier. A model for the underlying deformation is proposed.