Descriptive Study of Precursors to Sex Offending among 813 Boys and Girls: Antecedent Life Experiences

In order to understand the precursors to sexual offending among youth and the associated gender differences, the records of 813 sexually abusive children (659 boys and 154 girls) referred for an evaluation of their sexually inappropriate and coercive behavior were reviewed and coded. These children ranged in age from 3 to 18 when they committed their first hands-on offenses. All were under the care of the Massachusetts Department of Social Services either prior to or as a result of their behavior. Principle findings included: (1) a high proportion of girls (19 percent) in a sample of children flagged as sexually abusive to other children, (2) an exceptionally high base rate of severe maltreatment and associated clinical and psychiatric sequelae, and (3) girls were significantly more likely to be sexually abused, and when sexually abused the abuse lasted longer, was more severe, and involved more perpetrators. In addition, the girls were significantly more likely to witness domestic violence and to witness sexual deviance within the home. For all other types of abuse, there were no group differences, and (4) all of the children were subjected to a very high level of caregiver instability.     

MENTORS AND CRIMINAL ACHIEVEMENT*

Much of the research focusing on conventional occupations concludes that mentored individuals are more successful in their careers than those who are not mentored. Early research in criminology made a similar claim. Yet contemporary criminology has all but ignored mentors. We investigate this oversight, drawing on Sutherland's insights on tutelage and criminal maturation and incorporating ideas on human and social capital. We argue that mentors play a key role in their protégés' criminal achievements and examine this hypothesis with data from a recent survey of incarcerated adult male offenders in the Canadian province of Quebec. In this sample, a substantial proportion of respondents reported the presence of an influential individual in their lives who introduced them to a criminal milieu and whom they explicitly regarded as a mentor. After studying the attributes of offenders and their mentors, we develop a causal framework that positions criminal mentor presence within a pathway that leads to greater benefits and lower costs from crime.     

骨骼个体识别系统的研究

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Cross-national comparison of homicide: Age/sex-adjusted rates using the 1980 U.S. homicide experience as a standard

Cross-sectional studies of crime have typically relied on crude crime rates when making comparisons between countries. Crude rates control for population size but implicitly assume that all members of the population are equally at risk. Empirical studies have shown that, cross-nationally, risk varies by age and sex. Standardization of crime rates removes the confounding effects of variable age and sex population distributions. Since age/sex-specific crime rates are generally unavailable for many countries, the method of indirect standardization is the most desirable technique. Age/sex-adjusted homicide rates for 76 countries are presented, and two comparative measures are suggested. It is shown that while the United States has a higher homicide rate than all but 15 countries; in most cases, the magnitude of the difference, not controlling for age/sex differences, is overestimated. Crude rates underestimate differences between the United States and countries with higher rates of homicide.     

AN ANALYSIS OF PAROLE DECISION MAKING USING A SAMPLE OF SEX OFFENDERS: A FOCAL CONCERNS PERSPECTIVE*

We use data from pre‐sentence investigations and official parole board records to study the correlates of parole release among a sample of men incarcerated for sexual offenses. Cox proportional hazard models are used to estimate change in the likelihood of parole over time, and the focal concerns theory provides the theoretical framework for the analyses. The findings suggest a complex interplay of legal and extralegal factors in understanding parole release decisions. Parole officials weigh heavily offense seriousness, institutional misconduct, and parole readiness scores in making release decisions. In addition, study results reveal that victim and offender age is a salient factor in determining parole judgments. Overall, the current analysis provides a baseline for future research on parole decision making in general, and sexual offenders, in particular.     

THE DEVELOPMENT OF SELF‐CONTROL: EXAMINING SELF‐CONTROL THEORY'S STABILITY THESIS*

Research on self‐control theory consistently supports its central prediction that low self‐control significantly affects crime. The theory includes other predictions, however, that have received far less scrutiny. Among these is the argument that self‐control is developed early in childhood and that individual differences emerging then persist over time. The purpose of this study is to provide a rigorous test of the stability thesis. First, we examine the extent of stability and change in self‐control for a national sample of U.S. children age 7 to age 15. Second, we consider whether parenting continues to affect self‐control during adolescence—a period after the point at which self‐control differences should be fixed. The analysis revealed strong absolute and relative stability of self‐control for more than 80 percent of the sample, and this stability emerged in large part as early as age 7. Contradicting the theory was a smaller portion of respondents (roughly 16 percent) who experienced substantial absolute and relative changes in self‐control even after the age of 10. Moreover, parental socialization continued to affect self‐control during adolescence, even after accounting for both prior self‐control and exposure to parental socialization.     

法院改变罪名如何运作——兼与提出设置罪名改变通知程序的龙宗智先生讨教

对于法院能否改变罪名的问题学界和实务界争议教很大.龙宗智先生认为因为立法和司法解释已将判决改变罪名的权力明确赋予法院,固而法院改变罪名就不是法院有没有权力的问题,而是如何具体运作的问题,即是一个程序问,从而建言应设置一个罪名改变通知程序来进行具体运作并进一步论证了其合理和可行性.该程序具体运作由于庭审结构畸变导致法理上的不合理,条件上的不支撑,实践上的不可行,实效上的难如愿.对协商无效后作出无罪判决更为理性.     

扩增X—Y同源Amelogenin基因内含子在性别鉴定中的应用研究

本文用一对针对X－Y同源的Amelogenin基因第一内含子的引物，于同一试管中分别扩增出针对于x和Y染色体的特异性DNA片段：106bp及112bp的PCR产物，经聚丙烯酰胺凝胶电泳后用银染法观察扩增结果，取得了满意的效果．对50pgDNA模板室温放置16年的血痕及单根毛发、烟头等检材均可得到明确的性别鉴定结果．本实验证明该方法简便、灵敏、可靠、特别适用于腐败降解检材的法医学性别鉴定．     

Childhood Abusive and Supportive Experiences, Inter-Parental Violence, and Parental Alcohol Use: Prediction of Young Adult Depressive Symptoms and Aggression

Issues in both the children of alcoholics and child abuse literatures were addressed in an attempt to disentangle the effects on young adults of growing up in alcoholic homes versus abusive homes. Using multiple regression, retrospective reports of parental abuse (emotional, physical, and sexual) and parental support (love/support, independence, and fairness), witnessing violence between parents, and parental alcohol use were used as predictor variables for outcomes noted by both literatures. When the effects of all other predictors were statistically controlled, parental alcohol use was not significantly related to depressive symptoms or aggression. Different abusive and supportive behaviors, depending on sex of parent and sex of participant, were significant predictors of both depression and aggression. Results underscore the importance of including and controlling for inter-parental violence and for different types of child abuse (especially emotional abuse) and parental supportive behaviors in investigations of outcomes related to abusive and alcoholic families. Implications for treatment of individuals from these families are discussed.     

Detection of visible and latent fingerprints using micro-X-ray fluorescence elemental imaging

Using micro-X-ray fluorescence (MXRF), a novel means of detecting fingerprints was examined in which the prints were imaged based on their elemental composition. MXRF is a nondestructive technique. Although this method requires a priori knowledge about the approximate location of a print, it offers a new and complementary means for detecting fingerprints that are also left pristine for further analysis (including potential DNA extraction) or archiving purposes. Sebaceous fingerprints and those made after perspiring were detected based on elements such as potassium and chlorine present in the print residue. Unique prints were also detected including those containing lotion, saliva, banana, or sunscreen. This proof-of-concept study demonstrates the potential for visualizing fingerprints by MXRF on surfaces that can be problematic using current methods.