Measuring parentage policy in the Canadian provinces: A comparative framework

This paper develops a framework to measure parentage policy based on the legal barriers faced by intended parents, taking into account eligibility requirements, rules for genetic relationships, and surrogacy contract enforceability. It then applies this framework to the Canadian provinces. While parentage policy in Canada is undoubtedly a patchwork, policy change has moved in an increasingly permissive direction, often as a result of litigation. Moreover, this study provides an opportunity to develop broader research project for comparative scholars of parentage policy. Future studies of parentage policy, building from the framework developed here, should qualitatively examine the role of policy implementers other than legislatures and determine how policy learning and transfer affect parentage policy change. Because parentage policy can provide legal certainty for parents and prevent legal disputes, understanding the factors behind policy change is an endeavour with both theoretical and practical significance.     

Assessing the Effect of Batterer Program Completion on Reassault: An Instrumental Variables Analysis

The main objective of this paper is to investigate the utility of using the instrumental variables (IV) method to estimate batterer program efficacy, i.e., the program effect among batterers who complete batterer programs. This method takes account of possible confounding due to unmeasured traits of compliers and non-compliers. A structural model is used to estimate the impact of program completion on reassault using instrumental variables (IV) regression. Data on 640 batterers enrolled at three batterer programs are used. Results obtained from IV regression are compared with those obtained from a more traditional regression analysis. The results indicate that usual regression methods yield estimates of program effect that may be biased due to confounding by unmeasured batterer characteristics. Unfortunately, IV estimates may be unreliable due to failure of some of the assumptions on which they are based. If equations are adequately identified by the non-linear functional form used to estimate them, then IV results indicate that among a very select group of batterers, program completion significantly reduces the probability of reassault. The implications of confounding due to program non-compliance, program non-enrollment and attrition for future evaluations of batterer programs are discussed.     

Postmortem pink teeth.

A series of cases is reported in which pink teeth were observed during the postmortem period. Most cases were associated with decomposition in a moist environment. Experimental procedures led to the extraction of pink material from dentin and demonstration that hemoglobin and serum proteins were present. The pink-tooth phenomenon was duplicated in human teeth by instilling into the pulp chambers whole blood and blood with the red cells hemolyzed. The change was manifested in teeth of dogs after freezing, heating, and decomposition in a moist environment. The authors postulate that pink teeth occur as a result of breakdown of red blood cells in the pulp chamber of the tooth and diffusion of hemoglobin and other serum proteins into the dentin via the dential tubules. Histochemical studies show that the brown or gray material in some teeth subjected to postmortem aging is probably hemoglobin and serum proteins. Factors of age, vascularity of the pulp chamber, and postmortem conditions are discussed in relation to the postmortem development of pink teeth.     

Identification of serial homicide victims in the "Green River Murder" investigation

The Green River Murder Investigation in King County, Washington, is currently the longest and most active serial murder investigation in U.S. history. To date, little information has been reported on methods used in identification of serial murder victims. In this paper, various methods used in victim identification are reviewed and difficulties encountered during the course of the investigation are described. The experience of the authors is presented in order to acquaint other agencies with problems of victim identification associated with these serial murder victims and to provide key methods that may be useful in other such investigations.     

An ecological study of factors associated with rates of self-inflicted death in prisons in England and Wales

This study describes ecological associations between self-inflicted death rates and prison-level environmental indicators over the period 2000-2002 in England and Wales. The objective was to assist in the development of interventions for reducing the incidence of self-inflicted deaths in prisons in England and Wales, by identifying risk factors, including overcrowding, positive drug tests, the number of assaults, purposeful activity, offending behaviour programmes, and cost per prisoner. Poisson regression was used to estimate associations between self-inflicted death rates and these potential risk factors, controlling for different categories of prison. The annual rate of self-inflicted death during 2000-2002 was 1.14 per 1000 (95% CI 0.98 to 1.34), with no evidence for a difference in the two years. Highest rates were in the Male Local and Women's prisons at 1.86 (95% CI 1.42 to 2.26) and 2.27 (95% CI 1.35 to 3.84) per 1000 respectively. In a multivariate analysis, overcrowding, assault rate and purposeful activity were significant. In an analysis controlling also for prison category, only purposeful activity remained independently significant, as a protective factor (RR 0.57, 95% CI 0.35 to 0.92, p=0.02) with weaker evidence for a positive association with positive drug tests (RR 1.41, 95% CI 0.96 to 2.05, p=0.08). Despite concerns about the quality of routinely collected data and the interpretation of ecological associations, this study suggests that a higher level of purposeful activity is independently associated with lower rates of self-inflicted death, whatever the prison category. This adds support to other studies conducted at the level of the individual prisoner.