Chemical enhancement of footwear impressions in blood deposited on fabric — Evaluating the use of alginate casting materials followed by chemical enhancement

Most footwear marks made in blood on a surface such as fabric tend to be enhanced in situ rather than physically recovered using a lifting technique prior to enhancement. This work reports on the use of an alginate material to recover the impressed footwear marks made in blood and deposited on a range of fabric types and colours. The lifted marks were then enhanced using acid black 1 and leuco crystal violet with excellent results.This presents a new method for the lifting and recovery of blood impressions in situ from crime scene followed by subsequent mark enhancement of the lifted impression.     

The Effect of Lowering the Legal Drink‐Drive Limit on the Toxicological Findings in Driver Fatalities: A Comparison of Two Jurisdictions,

In December 2014, the legal blood alcohol limit for drivers in both Scotland and New Zealand was reduced from 80 to 50 mg/100 mL. This paper reports a retrospective study comparing changes in the toxicological findings in deceased drivers and motorcyclists before and after the limit change in both jurisdictions. A year of fatal motor vehicle crashes prior to and following the limit change is examined for both countries. In Scotland, there was an increase in drug prevalence among fatally injured drivers and motorcyclists, with the use of all drug groups increasing after the limit change, with the exception of cannabinoids. In New Zealand, there was a reduction in cases involving drugs only, but increases in the numbers of deceased drivers and motorcyclists positive for alcohol only and co‐using alcohol and drugs.     

The Triangular Relationship Between Nationality,EU Citizenship and Migration in EU Law: A Tale of Competing Competences

Within the legal framework of the EU, the Member States have remained competent to regulate who qualifies as a national. As nationals of a Member State are simultaneously EU citizens and enjoy the right to intra-EU mobility, it is the Member States who, through their Nationality Laws, determine who is to be classed as an EU citizen and who enjoys the right to intra-EU mobility. This article explores whether Member State competence to regulate nationality matters has been affected by the introduction of EU citizenship and/or developments in intra-EU mobility rights, the contents of which are determined primarily by the EU.

     

Evaluation of the use of pharmacological treatment with prisoners experiencing high levels of hypersexual disorder

This paper presents an evaluation of the impact of pharmacological treatment in reducing hypersexual disorder in adult males who have been incarcerated following conviction for a sexual offence. The evaluation compares two types of pharmacological treatment, one of which is part of the current NICE guidance for treatment of hypersexuality (Antiandrogens), whilst the other type (SSRIs) is off-label use in the UK for hypersexuality. The participant pool comprised 127 adult male prisoners serving sentences for sexual offences in a UK prison. Participants had been voluntarily referred for pharmacological treatment to manage hypersexual disorder. The results demonstrated a significant reduction of hypersexual disorder pre- and post-medication and contribute to the evidence base for the use of pharmacological treatment with individuals for whom hypersexual disorder may be a salient factor in their offending. Limitations of the current research are discussed.     

Accuracy and Repeatability of Trajectory Rod Measurement Using Laser Scanners

Three‐dimensional (3D) technologies contribute greatly to bullet trajectory analysis and shooting reconstruction. There are few papers which address the errors associated with utilizing laser scanning for bullet trajectory documentation. This study examined the accuracy and precision of laser scanning for documenting trajectory rods in drywall for angles between 25° and 90°. The inherent error range of 0.02°–2.10° was noted while the overall error for laser scanning ranged between 0.04° and 1.98°. The inter‐ and intraobserver errors for trajectory rod placement and virtual trajectory marking showed that the range of variation for rod placement was between 0.1°–1° in drywall and 0.05°–0.5° in plywood. Virtual trajectory marking accuracy tests showed that 75% of data values were below 0.91° and 0.61° on azimuth and vertical angles, respectively. In conclusion, many contributing factors affect bullet trajectory analysis, and the use of 3D technologies can aid in reduction of errors associated with documentation.     

The Olympics: 64 years on

In just over a month's time London will be the centre of international focus as athletes from over 200 countries arrive for the Olympic Games. The last Olympic Games held in London was in 1948 – in the same month the National Health Service (NHS) was established. It is a tragic coincidence that the Olympics returns to London in the same year as the Health and Social Care Act was passed, legislation the chairman of the British Medical Association described as likely to be ‘irreversibly damaging to the NHS as a public service, converting it into a competitive marketplace that will widen health inequalities and be detrimental to patient care’ (Buckman, 2012).     

Towards a common framework for assessing the activity and associations of groups who sexually abuse children

Abstract

Extensive social psychological research emphasises the importance of groups in shaping individuals' thoughts and actions. Within the child sexual abuse (CSA) literature criminal organisation has been largely overlooked, with some key exceptions. This research was a novel collaboration between academia and the UK's Child Exploitation and Online Protection Centre (CEOP). Starting from the premise that the group is, in itself, a form of social situation affecting abuse, it offers the first systematic situational analysis of CSA groups. In-depth behavioural data from a small sample of convicted CSA group-offenders (n =3) were analysed qualitatively to identify factors and processes underpinning CSA groups' activities and associations: group formation, evolution, identity and resources. The results emphasise CSA groups' variability, fluidity and dynamism. The foundations of a general framework are proposed for researching and assessing CSA groups and designing effective interventions. It is hoped that this work will stimulate discussion and development in this long-neglected area of CSA, helping to build a coherent knowledge-base.     

A decade on from the NCH Report (1992): Adolescent sexual aggression policy,practice and service delivery across the UK and Republic of Ireland

Abstract

This paper considers the issues involved in the use of manuals to guide the treatment of sexual offenders. I identify problems in the use of manuals, particularly their failure to encourage satisfactorily the implementation of therapeutic skills, the restrictions they place upon the therapist's ability to address the responsivity principle, the limits to which manuals can accommodate changes as a result of new evidence and the suppression of innovation. I offer suggestions for an alternative set of strategies to ensure the integrity of treatment delivery while at the same time overcoming the problems associated with manualization.     

A Comparison of Enhancement Techniques for Footwear Impressions on Dark and Patterned Fabrics,

The use of chemical enhancement techniques on porous substrates, such as fabrics, poses several challenges predominantly due to the occurrence of background staining and diffusion as well as visualization difficulties. A range of readily available chemical and lighting techniques were utilized to enhance footwear impressions made in blood, soil, and urine on dark and patterned fabrics. Footwear impressions were all prepared at a set force using a specifically built footwear rig. In most cases, results demonstrated that fluorescent chemical techniques were required for visualization as nonfluorescent techniques provided little or no contrast with the background. Occasionally, this contrast was improved by oblique lighting. Successful results were obtained for the enhancement of footwear impressions in blood; however, the enhancement of footwear impressions in urine and soil on dark and patterned fabrics was much more limited. The results demonstrate that visualization and fluorescent enhancement on porous substrates such as fabrics is possible.