A validation study for duct tape end matches

Fracture matches are considered to be the strongest association achievable in forensic examinations of glass, metal, wood, plastic, paint, tape, and other trace evidence. Despite being fairly routine examinations, few publications exist to support their admissibility in court. This study was designed, using duct tape as the fractured medium, to determine the validity and error rate associated with conducting end match (fracture match) examinations on this material. Five test designs, which varied either the source roll of tape or manner of separation (torn or cut) from the roll, were administered to four analysts with instructions to examine the assigned test sets for end matches. If an end match was not identified by the initial analyst, the entire test set was independently evaluated by the remaining three analysts. Results indicated that while tape grade did not hinder end match identification, the manner of separation could affect results.     

Death at high altitude in the hypobaric chamber

A small number of accidental and suicidal deaths have occurred in the hypobaric, or high altitude, chamber. A case of an unusual suicide in a hypobaric chamber is presented. The changes that resulted from decompression and hypoxia are discussed.     

Street children in North and Latin America: Preliminary data fromproyecto alternativos in Tegucigalpa and some comparisons with the U.S. case

The decade of the 1980s witnessed a dramatic transformation in the character of homelessness in the United States and elsewhere in the developed world. Whereas in previous decades the U.S. homeless were predominantly older, largely white, brokendown alcoholic men (or at least were stereotypified as such), today a sizable fraction are women and children. Indeed, women, children, and youth now comprise more than three-eighths of the total homeless population of the United States (Wright 1989). As the U.S. homeless have come to be comprised of proportionally more women and children, so have they come more and more to resemble the street populations of the Third World, where homelessness, family disorganization, exploitation, and abandonment of children have become increasingly important problems during the past decade.