Immature glomeruli in cot death kidneys

A morphometric study on the kidneys of cot death cases and age-matched controls was carried out using a point-counting method. The average proportions of the various kidney structures, especially the percentage of foetal glomeruli, were similar in both groups. This percentage decreased after the age of six months. The hypothesis that cot death may be caused by renal insufficiency associated with immaturity of glomeruli gained no morphological or morphometric support.     

Stain analysis using oligonucleotide probes specific for simple repetitive DNA sequences

The use of oligonucleotide fingerprinting is evaluated in practical forensic work, using both artificially and systematically produced stains as well as actual case work material. The probes (CAC5/(GTG)5 are superior because of their individualizing potential in comparatively fresh specimens with little DNA degradation, whereas (GACA)4, still produces substantial information when high molecular weight DNA is lacking. The overall limitations and the advantages of this technology are discussed in detail and compared to the classical minisatellite probes.     

Empirical Limits for the Forensic Assessment of PTSD Litigants

This paper discusses the limits of expert opinion on posttraumatic stress disorder (PTSD) in personal injury claims. The construct of PTSD is hampered by several empirical limitations. Multiple reliable measures of PTSD exist, but have not been evaluated sufficiently within litigating samples and are infrequently used by forensic assessors. Common methods for trauma screening appear insensitive. Opinions about causation of PTSD and disability are complicated by retrospective memory biases, as well as the failure of most anxiety disorders to be detected within primary medical care. PTSD appears to have a steep spontaneous remission curve during the first year, but at least 10% of trauma-exposed people suffer chronic distress. Little is known about the course beyond 1 year. Efficacious psychological treatments have been developed for PTSD, but are not in common use limiting claimants access to rehabilitative treatments. Research on functional disability associated with PTSD is in its infancy, but it seems likely that PTSD will account for only a part of the variance in work disability. We provide suggestions for improving forensic practice, advising the courts about the limitations of forensic opinions, and necessary research.     

The evaluation of evidence in the forensic investigation of fire incidents. Part II. Practical examples of the use of Bayesian networks

This paper extends a previous discussion of the use of Bayesian networks for evaluating evidence in the forensic investigation of fire incidents. Bayesian networks are proposed for two casework examples and the practical implications studied in detail. Such networks were found to provide precious support in addressing some of the wide range of issues that affect the coherent evaluation of evidence.     

STR data for 11 autosomal STR markers from Costa Rica, Central America

Allele frequencies for 11 STR autosomal loci (F13A01, F13B, FESFPS, LPL, CSF1PO, TH01, TPOX, VWA, D16S539, D7S820 and D13S317) were obtained from a sample of 200 unrelated individuals from Costa Rica, Central America.     

Social science in court

This article discusses the role of social science in legal proceedings with special attention to the ethical situation of the expert psychologist asked to testify about the reliability of an eyewitness identification. It argues that in this area as in others one cannot discuss the ethics of expert psychological testimony without attending to the quality of the research and theory on which the testimony is based. It also identifies as considerations that bear on the propriety of such testimony the information the fact finder is likely to receive in its absence and the factual guilt of the defendant. The paper goes on to discuss the relationship between law and social science more generally. It argues that ultimately courts do and should have the last word regarding the place of social science in legal proceedings.