The influence of a possible contamination of the victim's clothing by gunpowder residue on the estimation of shooting distance

A study was conducted to assess the influence of a possible contamination of the victim's clothing by gunpowder residue on the estimation of shooting distance. The study was focused on the scenario in which the contamination might be caused by the surface on which the shot victim could fall. Contamination of two types of textile was examined after contact with two types of surfaces. One round was fired above those surfaces (the line of firing parallel to the surface) prior to the contact. It was found that few gunpowder residue particles could be transferred to the clothing. These findings should be taken into account when interpreting results for shooting distance estimation in cases when a minute quantity of gunpowder residue particles is found around the bullet entrance hole.     

Grooming child victims into sexual abuse: a psychometric analysis of survivors’ experiences

This study sought to examine the psychometric properties of the Grooming subscale of the Computer Assisted Maltreatment Inventory (CAMI) in a sample of adult survivors of child sexual abuse. There are currently no other research measures that examine grooming events as experienced by survivors, which underscores the importance of a reliable and valid way of gathering this information. Participants (n?=?295) were adult survivors of child sexual abuse who completed this anonymous study online. The sample was collected through the use of adult survivor of child sexual abuse websites, trauma blogs, and survivor group pages on Facebook. Exploratory Factor Analysis, Confirmatory Factor Analysis, and Cronbach’s Alpha were used to ascertain the reliability and validity of this subscale. These analyses suggest that the Grooming subscale of the CAMI is a reliable and valid measure. This measure is an important addition to the body of research instruments that measure adult survivor of child sexual abuse experiences, particularly since this is the only instrument that examines grooming from this perspective.     

Virtopsy,a new imaging horizon in forensic pathology: virtual autopsy by postmortem multislice computed tomography (MSCT) and magnetic resonance imaging (MRI)--a feasibility study

Using postmortem multislice computed tomography (MSCT) and magnetic resonance imaging (MRI), 40 forensic cases were examined and findings were verified by subsequent autopsy. Results were classified as follows: (I) cause of death, (II) relevant traumatological and pathological findings, (III) vital reactions, (IV) reconstruction of injuries, (V) visualization. In these 40 forensic cases, 47 partly combined causes of death were diagnosed at autopsy, 26 (55%) causes of death were found independently using only radiological image data. Radiology was superior to autopsy in revealing certain cases of cranial, skeletal, or tissue trauma. Some forensic vital reactions were diagnosed equally well or better using MSCT/MRI. Radiological imaging techniques are particularly beneficial for reconstruction and visualization of forensic cases, including the opportunity to use the data for expert witness reports, teaching, quality control, and telemedical consultation. These preliminary results, based on the concept of "virtopsy," are promising enough to introduce and evaluate these radiological techniques in forensic medicine.     

Barriers to Seeking Police Help for Intimate Partner Violence

Intimate partner violence is underreported to police. A study was conducted utilizing focus group methodology to identify women's perceptions of the barriers to seeking police help for intimate partner violence (IPV). Facilitators used a structured format with open-ended questions for five focus group sessions that were recorded and subsequently analyzed using Ethnograph software. Participants were 41 women identified from social service agencies in an urban setting serving IPV women with diverse ethnic and cultural backgrounds. Participants identified many barriers for victims, which fell within the following three themes: (1) Predisposing characteristics — situational and personal factors; (2) fears and negative experiences with police response; and (3) fears of possible repercussions. Participants also described positive experiences with police and generated a wish list for improving police response to IPV. Policies and actions that can be taken by police and social service agencies to address the barriers IPV victims face in seeking police help are discussed.     

Differential diagnosis of traumatic skull findings in infants: residues after vacuum extraction

If autopsy findings in an infant show traumatic changes on the skullcap, these are not always the result of a postnatal trauma due to child abuse, a fall or another accidental event. With regard to differential diagnosis a birth trauma should also be kept in mind, so that the history of the delivery is important. The spectrum of possible residues after vacuum extraction (circular fracture and/or elevation of the outer table of skull bones, subperiostal and intraossal haematoma, extradural and subdural haemorrhage) is demonstrated by means of three examples from the forensic autopsy material.     

Alprazolam-related deaths in Palm Beach County

Alprazolam is a commonly prescribed benzodiazepine. The abuse of benzodiazepines is most frequently seen in conjunction with the abuse of other drugs. Only rare fatalities have been attributed to alprazolam alone. We undertook a retrospective review of cases investigated by the Palm Beach County Medical Examiner's Office in which postmortem toxicologic studies indicated the presence of alprazolam, to further study the pattern of alprazolam abuse. Our review consisted of 178 cases, including 87 in which death was attributed to combined drug toxicity, 2 to alprazolam toxicity alone, 44 to trauma, 12 to natural causes, and 33 to another drug or drugs. Cocaine and methadone were the most common cointoxicants in the cases of combined drug toxicity, while heroin was less frequently detected. There was considerable overlap in the postmortem blood alprazolam concentrations among the groups. The overlapping ranges of concentrations of alprazolam detected indicate that it may be difficult to define a lethal alprazolam range, and that it may not be possible to determine the actual role of alprazolam as a causal factor in cases of combined drug toxicity. This study confirms that alprazolam alone is rarely a cause of death, and that alprazolam abuse usually occurs within a polydrug use pattern. The high incidence of cocaine as a cointoxicant has not been previously reported.     

An analysis of strategies used to disseminate the PLATO system

Two aspects of efforts to disseminate an innovative computer-assisted instructional system called PLATO between 1972 and 1976 are addressed. The first pertains to the dissemination problems encountered and resolved by the system developers. The second covers dissemination modus operandi chosen by the developers to bring PLATO to the attention of large numbers of people. An ex post facto analysis of data obtained suggested PLATO developers made dissemination decisions that reflected viable dissemination theory and practice of the time, committed substantial resources to the dissemination process, and selected what appeared to be a cost-effective marketing strategy. Perhaps the most important consequence of these actions is that PLATO flourished throughout the 1970s and continues to flourish.