Distribution of the Minutiae in Hypothenar Palm Prints in Slovak Adults: Indications for Personal Identification

Minutiae are small distinguishing features found along every ridge flow, which make each friction ridge print unique. The most common friction ridge prints found at the crime scene are fingerprints; therefore, the most of the minutiae studies are focused exactly on this kind of prints. The authors believe that further examination and enlargement of the palm print database could result in better use of the palm prints for personal identification. We analyzed a total of 160 palm prints from 40 females and 40 males aged between 18 and 70 years from Slovakia. For the evaluation of the minutiae, the area of the hypothenar had to be marked out. The classification of the minutiae used for this study was based on a modified version of the classification system using the total of 13 types of minutiae. The frequency of every minutiae type was calculated and, using the chi-square test with Yates's correction, bilateral and sex differences were assessed. The relationship between the different types of minutiae was examined with Pearson's correlation test. During the initial phases of the identification process, the focus should be on the least common types of minutiae (Y or M and return), which were found not to correlate; thus, their mutual occurrence is random (e.g., overlap—Y or M, crossbar—return, or Y or M—dock). The results of the present study show which specific minutiae types are the most suitable for personal identification. These findings may be beneficial in more effective outcome of the identification process.     

Sexual victimisation,sexual cognitions,desire and excitation/inhibition in community Spanish male and female sexual aggressors

Abstract

This study explored the relationship between some aspects of sexuality and individuals' likelihood to perpetrate sexual aggression in men and women. We assessed the following sexuality variables: content of positive sexual cognitions (PSCs)/negative sexual cognitions (i.e., intimate, exploratory, dominance/submission or impersonal), dyadic and solitary sexual desire, propensity for sexual excitation (SE)/sexual inhibition and sexual victimisation during childhood and/or adolescence/adulthood. We examined a community sample of 228 men and 333 women, of whom 67 men and 43 women had perpetrated sexual aggression. Compared to non-aggressors, male aggressors reported a higher frequency of PSCs of dominance; female aggressors reported a higher frequency of PSCs of dominance and exploratory and impersonal sexual cognitions as both positive and negative and negative impersonal cognitions. All sexual aggressors reported higher levels of solitary desire and propensity for SE. Regression analyses revealed that the most relevant variable in the prediction of sexual aggression was sexual victimisation during adolescence/adulthood in both sexes. Differences between male and female sexual aggressors are discussed.     

Sex differences in the experience of child sexual victimization

This study analyzed 390 (303 girls and 87 boys) cases of child sexual abuse to understand sex differences in child sexual victimization. Analyses focused on three domains that have received considerable empirical attention: victims' relationships with the offender, type and extent of abuse, and disclosure. Findings largely replicated previous efforts that reported sex differences in terms of victims' relationships with offenders. Although results also replicated previous findings about sex differences in disclosure patterns, these sex differences were minor in comparison with similarities in the way most instances of abuse were eventually identified. In terms of type and extent of abuse, results were the opposite of previous findings: girls, not boys, were the victims of more physical injury, violent threats, and use of force; and girls, not boys, were more likely to have physically resisted abuse. Divergences in findings were interpreted in terms of memory biases and social forces operating differently on the sexes.     

Predicting multiple victim versus single victim sexual abuse: an examination of distal factors and proximal factors associated with the first abuse incident

Abstract

Official and confidential self-report data on 83 convicted adult male sexual abusers were analysed to examine whether sexual offending progression can be better predicted from distal antecedents, or from proximal antecedents and outcomes associated with the first sexual abuse incident. Fifty-six offenders who sexually abused more than one victim (multiple victim offenders; MVOs) were compared to 27 offenders who sexually abused a single victim only (single victim offenders; SVOs). MVOs were younger at the time of their first sexual abuse incident, and were more likely to first abuse male and non-familial children. With the exception of sexual attraction to male children, no differences were found between the two groups on distal antecedents. Proximal antecedents and outcomes associated with the first sexual abuse incident were significantly related to multiple victim offending. Logistic regression analysis identified the presence of sexual difficulties in the month prior to the first abuse incident, and sexual excitement immediately preceding the first incident, as significant unique predictors. Implications for risk assessment and risk management are discussed, and future research directions proposed.     

The association between childhood sexual abuse and sexual coercion in men: a test of possible mediators

ABSTRACT

We examined the associations between childhood sexual abuse (CSA), childhood physical abuse (CPA), sexual domain variables, antisocial tendencies, and sexually coercive behaviour in a non-forensic sample of 173 heterosexual men. CSA was associated with paraphilic interests and experiences, a more extensive sexual life history, and early antisocial tendencies. CPA was associated with paraphilic interests and experiences, more self-reported delinquency, higher sensation seeking, and early antisocial tendencies. Sexual domain variables (e.g. number of sexual partners, sexual interest in sadomasochism) mediated the link between CSA and sexually coercive behaviour, but antisocial domain variables (e.g. delinquency, sensation seeking) did not. Of the two sexual domains examined, extensive sexual life history rather than paraphilias mediated the association between CSA and sexually coercive behaviour. These results suggest CSA and CPA are associated with both sexual and antisocial outcomes, and that, for some victims of CSA, having an extensive sexual life history may account for the association between CSA and sexually coercive behaviour later in life.     

Marshall and barbaree's integrated theory of child sexual abuse: A Critique

Abstract

The aim of the current article is to critically examine an extremely influential multi-factorial theory of child molestation, Marshall and Barbaree's (1990) integrated theory. This powerful model was developed as a general theory of sexual offending and used to explain the onset of child sexual abuse in addition to other forms of sexual deviance. Despite its prominent status the adequacy of its basic ideas have never been systematically evaluated. First, I describe the integrated theory in detail and outline its core assumptions. Next, these ideas are subject to critical analysis and I highlight its strengths and weaknesses. Finally, I conclude with some brief comments about the model and the role of theory development in the sexual offending area.     

Revisiting the use of pornography by sexual offenders: Implications for theory and practice

Abstract

Summary: This article examines the extant research on the use of pornography by sexual offenders and some of the debates engendered by such use. The analyses should assist in clarifying a number of issues of concern for all who work in the field of sexual offending.     

Distribution of the minutiae in the fingerprints of a sample of the Spanish population

One of the fundamental aspects of the process of identification through fingerprints is the comparison of the minutiae between the fingermark obtained at the scene of the crime and the suspect's corresponding finger. There is no scientific basis in this process that allows the use of numerical standards, such as those kept in different countries, to obtain the identification. The recent mistakes made in the field of dactyloscopy, together with the growing rigor and scrutiny that forensic evidence undergoes in the legislative and scientific areas, have resulted in the need to reconsider some of the basic principles that support this discipline. A probabilistic estimation of the evidential value is especially necessary; therefore, it is indispensable to know and quantify the variability of the features used in the identification process. The sample studied for this research was obtained from 100 Caucasian men and 100 Caucasian women from the Spanish population, which amounts to a total of 2000 fingerprints. The different types of minutiae were located, identified, and quantified visually on the fingerprint, in four sectors, and inside and outside of a circle, whose radius cut, perpendicularly, fifteen ridges starting from the center cut of the axes that defined the sectors. According to the results obtained in this study, through dactyloscopic identification, the weight of the evidence of a minutia, such as the ridge endings, with frequencies between 55% and 65%, according to the area and gender evaluated, cannot be the same as that of a bifurcation or convergence, with frequencies of 13-18% or those of other minutiae that show frequencies lower than 3%. The significant differences found in the topological distribution of the endings, bifurcations, and convergences show the need to take into account, for its demonstrational value, the finger area in which they are evaluated. The significant association observed between the types of minutiae and the different fingers revealed a greater frequency of endings on the thumb and index fingers, and bifurcations and convergences on the middle, ring, and little fingers.     

Child sexual abuse within the Catholic Church: a review of global perspectives

Child sexual abuse by Catholic priests is a global issue. Reports of abuse proliferated in the US in 2002, giving the appearance that it was an American phenomenon. However, by 2010, it was clear that abuse in the Catholic Church had affected countries around the world. Scholars in the US have published reports evaluating the nature, scope, and causes of the problem. Similarly, public inquiries and commissions have investigated the crises in other western and English-speaking countries, and research is ongoing. The reports have produced similar findings and recommendations for preventing abuse in the future, including better education and training about abuse; the need to respond quickly and thoroughly to victim–survivors; transparency in response to abuse; and coordinated responses with civil authorities.     

Public perceptions of internet,familial and localised sexual grooming: Predicting perceived prevalence and safety

Abstract

This paper examines public perceptions of three sexual grooming types: computer-mediated sexual grooming (CMSG), familial sexual grooming (FSG) and localised sexual grooming (LSG). Using data from a national survey of 557 respondents from the United Kingdom, we tested models that predicted perceptions of the prevalence of CMSG, FSG and LSG and the perceived safety of internet, familial and localised grooming spaces. Media-related factors were the most significant in predicting higher levels of perceived prevalence of CMSG and disagreement in relation to safety of internet and public spaces. Knowledge of a grooming victim was most significant in predicting higher levels of perceived prevalence of FSG and LSG and higher levels disagreement in relation to the safety of the home. The findings suggest that the public express too little concern over familial sexual grooming and that initiatives should be introduced to make citizens more aware of the distinctions between types of sexual grooming behaviours, settings and offenders.     

Defining appropriateness in coach-athlete sexual relationships: The voice of coaches

Abstract

The sporting culture, with omnipotent coaches, fierce competition for recognition and funding, and ‘win at all costs’ ethos, creates an environment conducive to sexual exploitation of athletes. Recent increased public awareness and the development of child protection policies in sport have led to the questioning of previously accepted coach-athlete relationships. This study is an exploratory investigation into male swimming coaches' perceptions of appropriateness of coach-athlete sexual relationships. Sexual relationships with athletes under the age of 16 were unanimously considered totally inappropriate. With regard to sexual relationships with athletes above the age of consent, opinions ranged from ‘totally inappropriate’ to ‘it’s a question of civil liberties.' These results are discussed in relation to how coaches have adapted their own behaviours in the face of public scrutiny but are still reluctant to restrict the rights of their fellow coaches.     

Differentiating sexual violence: A comparison of sexual homicide and rape

Abstract

The present study sought to identify consistent patterns in the actions of sexually violent offenders to determine whether sexual homicide and rape reflect different behavioral emphasis of a single thematic model of sexual assault. Crime scene behaviors of 74 (37 sexual homicides and 37 rapes) solved cases of sexual assaults were compared, and results of a multi-dimensional analysis revealed three thematic styles of interacting with the victim during a sexual assault (Exploit, Control, and Violent). Further analysis indicated that offender–victim interactions in sexual homicide and rape are predominantly distinguished by the degree of violence, such that behaviors associated with each type of offense were found to occur in two discrete areas along a single continuum. Findings are discussed in terms of producing a general framework for understanding sexual violent interactions.     

Computation of likelihood ratios in fingerprint identification for configurations of three minutiae

Recent challenges to fingerprint evidence have brought forward the need for peer-reviewed scientific publications to support the evidential value assessment of fingerprint. This paper proposes some research directions to gather statistical knowledge of the within-source and between-sources variability of configurations of three minutiae on fingermarks and fingerprints. This paper proposes the use of the likelihood ratio (LR) approach to assess the value of fingerprint evidence. The model explores the statistical contribution of configurations of three minutiae using Tippett plots and related measures to assess the quality of the system. Features vectors used for statistical analysis have been obtained following a preprocessing step based on Gabor filtering and image processing to extract minutia position, type, and direction. Spatial relationships have been coded using Delaunay triangulation. The metric, used to assess similarity between two feature vectors is based on an Euclidean distance measure. The within-source variability has been estimated using a sample of 216 fingerprints from four fingers (two donors). Between-sources variability takes advantage of a database of 818 ulnar loops from randomly selected males. The results show that the data-driven approach adopted here is robust. The magnitude of LRs obtained under the prosecution and defense propositions stresses upon the major evidential contribution that small portions of fingermark, containing three minutiae, can provide regardless of its position on the general pattern.     

Executive functioning profiles of adult and juvenile male sexual offenders: A systematic review

Evidence regarding biological correlates of sexual offending, which might enhance the understanding, research, and treatment of these offenders, is rather emerging or in the embryonic stage. In this study, our main objective is to identify specific executive functioning (EF) processes that are commonly impaired in sexual offenders, and to further determine whether these differ as a function of offender subtypes. A search is conducted in ProQuest, Criminal Justice Abstract, EBSCOhost, and Social Science Citation Index electronic journal databases for studies published spanning the period 1990–2015. Google Scholar and Google search engines were also searched and the reference lists of the retrieved papers were searched for additional papers. A total of 1303 papers were retained for consideration. After removing duplicates, and subjecting the retrieved papers to inclusion and exclusion criteria, 24 papers (19 published and 5 unpublished) were deemed appropriate for the review. While several EF processes have been investigated, the available evidence implicates deficits in cognitive flexibility and inhibition of interference as commonly reported among adult male sexual offenders. This finding may be due to the sensitivity of tests of cognitive flexibility (e.g. the Wisconsin Card Sorting Test) and inhibition of interference (e.g. the Stroop Test) to frontal lobe lesions, and also because these tests are among the most frequently administered EF tests as revealed by this study. Juvenile sexual offenders, however, exhibit no distinct EF profiles. The findings of the study, implications for treatment, and recommendations for future studies are succinctly discussed.     

The paraphilia-related disorders: an investigation of the relevance of the concept in sexual murderers

Paraphilic disorders (PAs) and sexual preoccupation are known risk factors for recidivism in sexual offenders. Nonparaphilic sexual excessive behaviors-so-called paraphilia-related disorders (PRDs), like paraphilias, are also characterized by sexual preoccupation and volitional impairment and can be diagnosed in paraphilic men. The prevalence and clinical significance of PRDs in sexual homicide perpetrators, however, is unknown. We investigated the relationship between PAs and PRDs retrospectively in a sample of 161 sexual murderers. Four groups were compared: men without a PA or a PRD diagnosis, men with at least one PRD but no PA, men with at least one PA but no PRD, and finally, those with a combination of both (PA+PRD). The PA+PRD group had the most lifetime cumulative sexual impulsivity disorders, more developmental problems, the highest persistent frequency of sexual activity, the highest number of previous sexual offences, more sexual sadism, and compulsive masturbation. Men of the PRD subsample had suffered more from childhood sexual abuse, showed more promiscuity, psychopathy, and alcohol problems. The use of the PRD concept in this special offender group should be further investigated with prospectively designed studies.     

In the aftermath of disclosing child sexual abuse: consequences,needs, and wishes

Experiencing child sexual abuse (CSA) can have enormous consequences for the victims. However, reporting rates are comparably low. Thus, it is essential to consider the wishes and needs of disclosing CSA victims in order to develop measures that can improve the disclosure and reporting of CSA. We analysed data of a subsample of n?=?394 victims of contact CSA from a representative victim survey (N?=?11,428) conducted by the Criminological Research Institute of Lower Saxony, Germany, in 2011. Overall, 76% of the victims disclosed their CSA experience to somebody. However, only 14% of the cases were made known to law enforcement agencies. Of the disclosing victims, only one-third was believed and 43% reported that the disclosure led to no further consequences. Overall, being believed as well as supported by the victims’ family proved to be crucial. Implications are discussed against the background of previous research.     

Characteristics of children with problem sexual behaviour and adolescent perpetrators of sexual abuse: a systematic review

ABSTRACT

People who commit sexual offences are a heterogeneous group, with research suggesting that children and young people commit a large proportion of all sex offences, especially those committed against other children. This systematic review provides a synthesis of literature concerning the characteristics of children and adolescents who exhibit harmful sexual behaviour. There is a particular focus in this review on studies that examine the characteristics of children and young people exhibiting these behaviours within institutional and organisational settings or which take a situational and/or developmental approach to understanding sexually abusive behaviour. Using a developmental and life-course criminology lens, this review explores implications from the literature for the prevention and response to child sexual abuse, with a particular focus on institutional contexts where the perpetrators are children and adolescents.     

Viewing time measures and sexual interest: another piece of the puzzle

Abstract

The present study compared a viewing time (VT) measure with the Sexual Deviance Card Sort (Laws et al., 2000 Laws, D. R., Hanson, R. K., Osborn, C. A. and Greenbaum, P. E. 2000. Classification of child molesters by plethysmographic assessment of sexual arousal and a self-report measure of sexual preference. Journal of Interpersonal Violence, 15: 1297–1312. [Crossref], [Web of Science ®] , [Google Scholar]) and past sexual behaviour. Twenty-six adult males who committed a contact sexual offence (19 of whom had child victims and seven with adult victims) each completed the self-report card sort and viewed 640 slides of nude and clothed males and females, ages 5, 9, 13 years and adult. The offenders were unaware that their viewing time was being recorded. VT allowed for greater consistent classification of sexual interest: for gender preference, 79% for individuals with child victims, 86% for individuals with adult victims; for age preference, 84% for individuals with child victims, and 57% for individuals with adult victims. Results demonstrated that a combination of nude and clothed computer-modified imagery can provide accurate sexual interest classification.     

Dynamic risk and sexual offending: the conundrum of assessment

ABSTRACT

The potential to reduce sexual victimisation, promote community safety, and decrease incarceration costs has resulted in considerable progress in terms of how we understand and predict sexual recidivism. And yet, the past decade has seen a degree of fragmentation emerge as research attention has shifted away from relative risk prediction (with its focus on static risk factors) to the identification of factors capable of reducing risk through intervention (i.e. dynamic risk). Although static and dynamic risk are often treated as orthogonal constructs [Beech, A. R., & Craig, L. A. (2012). The current status of static and dynamic factors in sexual offender risk assessment. Journal of Aggression, Conflict and Peace Research, 4(4), 169–185. doi:10.1108/17596591211270671], there are arguments to support a claim that the two are in fact functionally related [see Ward, T. (2015). Dynamic risk factors: Scientific kinds or predictive constructs. Psychology, Crime & Law (in 22(01–02), 2–16); Ward, T., & Beech, A. R. (2015). Dynamic risk factors: A theoretical dead-end? Psychology, Crime & Law, 21(2), 100–113. This discussion clearly affects how we assess dynamic risk. This review considered several commonly used methods of assessment and the evidence offered for their predictive accuracy. Of note were differences in the predictive accuracy of single psychometric measures versus composite scores of dynamic risk domains and the conventions used for establishing effect sizes for risk assessment tools.