Conflict,Development and Security at the Agro–Pastoral–Wildlife Nexus: A Case of Laikipia County,Kenya

Abstract

This article analyses the connections between conflict and development at the agriculture–pastoralism–wildlife interface from the perspective of human security. The article draws on empirical data (qualitative and quantitative) generated in Laikipia County, Kenya, and literature to illustrate that (1) the major issues which cut across each of these conflicts are related to natural resource management, cultural practices and governance, and (2) these cross-cutting issues impinge on people’s freedoms, extending these conflicts into cases of human insecurity. Specifically, each conflict type compounds the impacts of the others on farmer and pastoral economic, food, environmental, personal, community, health and political security.     

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.     

Effect of chloride ion concentration on the galvanic corrosion of α phase brass by eccrine sweat

Inductively coupled plasma mass spectrometry measurement of the relative concentration of sodium, chloride, calcium, and potassium ions in eccrine sweat deposits from 40 donors revealed positive correlations between chloride and sodium (ρ = 0.684, p < 0.01) and chloride and calcium ions (ρ = 0.91, p < 0.01). Correlations between ion concentration and the corrosion of α phase brass by the donated sweat were investigated by visual grading of the degree of corrosion, by measuring the copper/zinc ratio using energy-dispersive X-ray spectroscopy, and from a measurement of the potential difference between corroded and uncorroded brass when a large potential was applied to the uncorroded brass. An increasing copper/zinc ratio (indicative of dezincification) was found to correlate positively to both chloride ion concentration and visual grading of corrosion, while visual grading gave correlations with potential difference measurements that were indicative of the preferential surface oxidation of zinc rather than copper.     

Training,experience, and magistrates' sentencing philosophies

The lay magistracy is unique to the English legal system, and this study investigates how those appointed as magistrates change in their sentencing policy and attitudes toward defendants as a result of the experience gained during the first year on the bench and as a result of the mandatory training program. An experimental design was used to evaluate the effects of training in which a group of newly appointed magistrates was randomly assigned to defer their training for one year and compared to those who completed their training during the first year in the usual way. In addition, the use of a group of nonmagistrates as controls enabled a quasiexperimental evaluation of the effects of experience on the bench. Magistrates and controls completed a questionnaire in which they sentenced a number of cases at the time of the magistrates' appointment to the bench and again one year later. The results showed that magistrates as a result of their experience became more committed to the aims of deterrence and punishment, became more pessimistic about the prospects of reforming defendants, regarded the severe sentences as more appropriate, and took a less sympathetic view of defendants. The training program, however, tended to ameliorate these effects. Possible explanations for these findings and the implications for the training of magistrates are discussed.This study was supported by a grant from the Nuffield Foundation     

The value of DNA material recovered from crime scenes

Abstract:  DNA material is now collected routinely from crime scenes for a wide range of offenses and its timely processing is acknowledged as a key element to its success in solving crime. An analysis of the processing of approximately 1500 samples of DNA material recovered from the property crime offenses of residential burglary, commercial burglary, and theft of motor vehicle in Northamptonshire, U.K. during 2006 identified saliva and cigarette ends as the main sources of DNA recovered (approximately 63% of samples) with blood, cellular DNA, and chewing gum accounting for the remainder. The conversion of these DNA samples into DNA profiles and then into matches with offender profiles held on the U.K. National DNA database is considered in terms of the ease with which Crime Scene Examiners can recover DNA rich samples of different sources, the location of the DNA at the crime scene, and its mobility. A logistical regression of the DNA material recovered has revealed a number of predictors, other than timeliness, that greatly influence its conversion into a DNA profile. The most significant predictor was found to be Crime Scene Examiner accreditation with offense type and DNA sample condition also being relevant. A similar logistical regression of DNA samples profiled that produced a match with an offender on the U.K. National DNA database showed no significance with any of the predictors considered.