Sex determination from os sacrum by postmortem CT

Sex determination in forensic practice is performed mostly on sexually dimorphic bones, including pelvic bones such as the os sacrum. Postmortem CT scan provides an easy and fast method for depicting and measuring bone structures prior to elaborate autopsy preparations. To develop a simple and objective method for sex determination in postmortem CT, metric data were evaluated from CT images of the pelvic-associated os sacrum of 95 corpses (49 men and 46 women) from the Canton of Bern, Switzerland. Discriminant function analysis of the data showed that the best accuracy in determining sex was 76.8% and 78.9% with two different observers. It is concluded that measuring the os sacrumin postmortem CT for sex determination has moderate accuracy and should only be applied in combination with other methods.     

A Minimally Invasive Technique for the Detection and Analysis of Pulmonary Fat Embolism: A Feasibility Study*

We investigated the feasibility of postmortem percutaneous needle biopsy (PNB) for obtaining pulmonary samples adequate for the study of pulmonary fat embolism (PFE). Samples of both lungs were obtained from 26 cadavers via two different methods: (i) PNB and (ii) the double-edged knife technique, the gold standard at our institute. After water storage and Sudan III staining, six forensic pathologists independently examined all samples for the presence and severity of PFE. The results were compared and analyzed in each case regarding the vitality of the PFE and its relationship to the cause of death. The results showed that PFE was almost identically diagnosed and graded on the samples obtained via both methods. The discrepancies between the two techniques did not affect the diagnoses of vitality or cause of death related to PFE. This study demonstrates the feasibility of the PNB sampling method for the diagnosis and interpretation of PFE in the postmortem setting.     

The effect of post-identification feedback, delay, and suspicion on accurate eyewitnesses

We examined whether post-identification feedback and suspicion affect accurate eyewitnesses. Participants viewed a video event and then made a lineup decision from a target-present photo lineup. Regardless of accuracy, the experimenter either, informed participants that they made a correct lineup decision or gave no information regarding their lineup decision. Immediately following the lineup decision or after a 1-week delay, a second experimenter gave some of the participants who received confirming feedback reason to be suspicious of the confirming feedback. Following immediately after the confirming feedback, accurate witnesses did not demonstrate certainty inflation. However, after a delay accurate witnesses did demonstrate certainty inflation typically associated with confirming feedback. The suspicion manipulation only affected participants' certainty when the confirming feedback created certainty inflation. The results lend support to the accessibility interpretation of the post-identification feedback effect and the erasure interpretation of the suspicion effect.     

Pi Alpha Alpha activities and effectiveness: results from a national survey of chapter advisors

Pi Alpha Alpha (PAA) is the national academic honor society for public administration. This study presents the results of a comprehensive survey of PAA Chapter advisors focusing on inductee characteristics, induction requirements, chapter activities, chapter officers, and suggestions for improving PAA chapter effectiveness. NASPAA sponsored the survey and provided relevant logistical support. The results indicate that PAA is meeting its major objectives, but several areas require attention including enhancing the activity mix, improving recruitment practices for chapter officers, and a dedicated means for disseminating information on chapter activities through a newsletter and a chapter directory.     

Probation Officers’ Perceptions of Supervising Probationers with Mental Illness in Rural and Urban Settings

As part of a larger study of probation workload and workforce challenges in one southeastern state, this study reports the results from a statewide survey of probation officers’ experiences supervising probationers with mental illness. A total of 615 officers responded to closed- and open-ended questions about the challenges and barriers to supervising offenders with mental illness, and the responses of officers from rural versus urban settings were compared. Officers reported that probationers with mental illness are difficult to supervise and supervision challenges are exacerbated by a scarcity of mental health and substance abuse treatment resources, limited social support, and a lack of employment opportunities for this population of probationers. Officers report unique and similar challenges across rural and urban settings. This study contributes to our understanding of the challenges of supervising probationers with mental illness and informs practice, policy and research at the interface of the criminal justice and mental health systems.     

The effects of tenure on police officer personality functioning

The study compared pre-employment and current MMPI/MMPI-2 Basic Scale scores of small- and mid-size city Texas municipal police officers to assess longitudinal personality change. Participants had at least five years continuous, “street level” police experience. Twenty-three veteran police officers from a mid-size city and 19 small-city police officers volunteered to participate. Pre-employment MMPI/MMPI-2 information was obtained from police department records. Current MMPI-2 data was collected in small group or individual administrations. Significant increases in K-corrected T-Scores occurred on Scale F and eight of the Basic Scales; L and K decreased significantly. Mean scores remained within the normal range. Mid-size city officers produced higher K and 5 scores than small-city officers. Authors' Note: We gratefully acknowledge the assistance of Rick Bradstreet, Ph.D., and E. S. Collins, Chief of Police, in the data collection process. The results of this study were presented at the Annual Convention of the American Psychological Society in Denver, Colorado, in June 1999.