Legal preparedness has gained recognition as a critical component of comprehensive public health preparedness for public health emergencies triggered by infectious disease outbreaks, natural disasters, chemical and radiologic disasters, terrorism and other causes. Public health practitioners and their colleagues in other disciplines can prepare for and respond to such an event effectively only if law is used along with other tools. The same is true for more conventional health threats. At first glance, public health legal preparedness may appear to be only a matter of having the right laws on the books. On closer examination, however, it is as complex as the field of public health practice itself. Public health legal preparedness has at least four core elements: laws (statutes, ordinances, regulations, and implementing measures); the competencies of those who make, implement, and interpret the laws; information critical to those multidisciplinary practitioners; and coordination across sectors and jurisdictions. The process of improving public health legal preparedness has begun in earnest with respect to potentially massive public health emergencies. Elected officials, public health, legal, and law enforcement practitioners, and national security organizations have contributed to initial benchmarks for the core elements. A few gaps in legal preparedness have been identified in the context of exercises, actual public health emergencies, and through more general assessments of public health preparedness conducted by CDC and the Department of Justice. While a strong beginning has been made, this work is incomplete. Redoubled effort is needed to define practical, measurable benchmarks or standards of legal preparedness, to identify and correct shortcomings, and to review findings from regular exercises and actual public health emergencies. There is great value in having this work move forward on two converging tracks, one defined by states and localities acting on their own initiative and the other shaped by the federal government as informed by state and local experience. The TOPOFF and Dark Winter exercises exemplify the grounded, case-based approach that teaches practical lessons about benchmarks, gaps, and steps to improve public health's legal preparedness. It goes without saying that action on both tracks should be taken by collaboratives whose membership includes representatives of the many different communities integral to the design and application of laws that affect the health of the public and the effectiveness of the public health system itself. Consistent with the concept of a public health or population health system with which we began this paper, participants in both tracks should include representatives of non-governmental bodies--community-based organizations, non-profit organizations active in disaster preparedness and response, and others. This paper presents a conceptual and analytic framework those groups may apply, one that is sufficiently broad to serve as an integrating schema across sectors...

A general population sample of bite marks in wax is used to demonstrate mathematically the individuality of the human dentition. The general principles of probability are discussed and applied to the analysis of teeth using a precise method of measurement. The unique nature of the human dentition is confirmed.

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The forensic investigator is frequently confronted with cases that present with wounds and blunt force trauma. Presently, the forensic investigator depends upon previous experience and further investigative deduction of the crime scene to analyze these injuries. Although not readily apparent to the naked eye, many skin tissue injuries can be visualized with scanning electron microscopy (SEM). This study was designed to establish skin trauma resolution using SEM in various skin preparations. Tissue trauma was induced on leather, preserved skin, fresh skin, and living skin using dies of varying thread size. Calibrated pressure forces in pounds per square inch (psi) were applied and impressions made using vinyl polysiloxane. Positive replicas of the tissues were prepared for SEM using isocyanate resin. After sputter coating the cast with 35 nm of gold-palladium, electron micrographs were generated using a Jeol JSM-5310L V scanning electron microscope. To establish resolution, thread widths of 52, 104, and 208 threads per inch (tpi) and trauma forces of 150, 200, and 250 psi were used to produce the impressions. Microgrooves that were identified on the die threads were analyzed. The optimum pressure for resolution studies was 150 psi using the 52 tpi die on the leather sample (4.67 + 0.88 µm, p = 0.046 and 0.025, respectively, by ANOVA). The resolution was compared to that of leather using preserved, fresh, and living skin. The resolution in preserved and fresh skin was less than for leather (9.00 ± 1.73 and 10.5 ± 4.5 versus 4.67 ± 0.88 µm, p = 0.09 and p = 0.20, respectively). Living skin resolution was 3 µm at 52 tpi and 100 psi. Various implements of blunt force trauma were also examined using the leather sample. Time after trauma resolution was examined at 0 (3 µm), 5 (6 µm), 10 (8 µm), and 20 (9 µm) min in living tissue. A comparison between the microgrooves on the die replicas and the tissue trauma impressions revealed striking agreement for both linearity and resolution. Analysis of the microgrooves suggests that discrete morphological characteristics are seen in skin tissue traumas. This method could expand the tools available for the forensic investigation of blunt force trauma.