Comparative study of electrochromic enhancement of latent fingerprints with existing development techniques

To address the challenge of capturing latent fingerprint evidence from metal surfaces, a new method of latent fingerprint enhancement based on electrochromic polymer films has recently been developed. Here, we present a study comparing the development and visualization of nonvisible fingerprints on stainless steel substrates using this electrochromic enhancement approach with three classical methods (dusting, wet powder, and cyanoacrylate fuming). Two variants of the electrochromic enhancement method were utilized with polyaniline and poly(3,4-ethylenedioxythiophene) as the electrochromic materials. Fingerprint samples were taken from different donors (varying in age and gender) and were exposed to different environments for systematically varied periods of time (up to 28 days). The environments represent plausible evidential scenarios: left under ambient conditions, washed with aqueous soap solution, washed with acetone, submerged in water, and maintained at elevated temperature. The electrochromic enhancement procedure frequently outperformed the traditional methods, particularly for samples exposed to more challenging histories.     

The Developing Habitus of the Anti‐Social Behaviour Practitioner: From Expansion in Years of Plenty to Surviving the Age of Austerity

Specialist anti‐social behaviour units are common within social housing providers, with many established in response to the policies of the New Labour governments of 1997–2010. These units now find themselves operating in a different political and financial environment. Following the English riots of 2011, the Coalition government, whilst imposing budgetary cuts across the public sector, called on social housing providers to intensify their role in tackling disorder. This article explores the habitus or working cultures within anti‐social behaviour units post‐New Labour. It does so through empirical research conducted in the aftermath of the English riots. The research finds that practitioners view their work as a core function of social housing provision. They have developed an understanding of human behaviour, which crosses the criminal and social policy fields with a wide skillset to match. A number of factors including national policy, community expectations, and multi‐partnership engagement influence their dynamic working culture.     

Personality,socioeconomics and crime: An international comparison

Abstract

Data from 37 countries were collected that permitted exploratory analysis of national profiles in terms of personality dimensions: psychoticism (P); extraversion (E); and neuroticism (N) and four socioeconomic indices: gross domestic product (GDP); human development index (HDI); economic growth (EG); and family size (FS) and their relationship to rates of criminal activity. Findings indicated that the socioeconomic indicators did correlate with national crime patterns. High crime nations were more likely to be the richer, industrialised countries having smalles average family size. Personality variables proved more elusive. P surprisingly was not correlated with incidence of crime rather E appeared mast closely linked to rate and type of crime. Findings are discussed in terms of measurement error and possible explanatory mechanisms.     

Making a Difficult Decade Easier

Premier Wen Jiabao has played a major part inkeeping relations steady between China and the EU This year will see two meetings of the China-EU Summit. The first meeting, originally scheduled to be held in Beijing last October