Standardization of Histological Procedures for the Detection of Toxic Substances by Immunohistochemistry in Dipteran Larvae of Forensic Importance

Immunohistochemistry (IHC) technique is an alternative toxicological analysis to detect drugs in insects of forensic importance, but it requires thorough histological procedures. In this study, we tested different fixatives—phosphate‐buffered paraformaldehyde 4% (PP), Carnoy's fluid (CF), Kahle's solution (KS), ethanol in different concentrations, and ethanol associated to PP and CF, time of fixation and histological processes for dipteran larvae's tissue, aiming to develop a sample preparation protocol for IHC application. A suitable fixation was achieved using PP for 12 and 24 h, CF for 3 h, 70% ethanol for 19 days, and 70% ethanol/CF for 2 h/3 h. Postfixation using negative pressure, two immersions in xylene for 30 min each, and one in xylene plus paraffin for 45 min increased tissue preservation. An immunohistochemical test for cocaine detection was performed using monoclonal benzoylecgonine antibody from mouse, peroxidase‐conjugated anti‐mouse IgG and visualized by 3,3′‐diaminobenzidine method showed these histological procedures didn't compromise antigenicity.     

法医DNA检验的现状及发展

DNA检验自被作为证据引入法庭诉讼以来 ,随着科技的发展 ,其检验手段和方法不断更新和完善 ,经历了一个从小到大、从复杂到简单、从手工操作到仪器自动化的发展过程。本文综述了利用DNA推断年龄及DNA提取、检测等方面的新进展。     

Prediction of Police Officer Performance Among New Mexico State Police as Assessed by the Personality Assessment Inventory

Little research has been conducted regarding the use of the Personality Assessment Inventory (PAI) in law enforcement screening and selection. The limited body of research that does exist appears to support its utility in the selection process. The purpose of the present study was to investigate the validity and reliability of the Psychological Rating Risk Factor Statement (PRRFS) developed by Roberts, Thompson, and Johnson (2004) in predicting and discriminating problem from non-problem New Mexico State Police (NMSP) applicants. PAI profiles for each officer were obtained and transferred into the PAI Law Enforcement, Corrections, and Public Safety Selection software program, which generated probability estimates (PRRFS) to predict the likelihood that participants were not well-suited for a career in law enforcement. Subsequent logistic regression and receiver operating characteristic (ROC) statistical analyses revealed that the PRRFS was ineffective in predicting and discriminating between problem and non-problem officers. Potential explanations for this finding are discussed.     

Effect of incarceration on criminality in the state of Minas Gerais,Brazil

Crime, Law and Social Change - Criminality is a major factor in reducing the well-being of the Brazilian population. As a result, many researchers and governments strive to discover what can reduce...     

Human Rights as a Security Threat: Lawfare and the Campaign against Human Rights NGOs

In this article, I show how the term lawfare is being deployed as a speech act in order to encode the field of human rights as a national security threat. The objective, I claim, is to hinder the work of human rights organizations that produce and disseminate knowledge about social wrongs perpetrated by military personnel and government officials, particularly evidence of acts emanating from the global war on terrorism—such as torture and extrajudicial executions—that constitute war crimes and can be presented in courts that exercise universal jurisdiction. Using Israel as a case study, I investigate the local and global dimensions of the securitization processes, focusing on how different securitizing actors—academics, nongovernmental organizations, think tanks, policy makers, and legislators—mobilize the media, shape public opinion, lobby legislators and policy makers, introduce new laws, and pressure donors to pave the way for a form of exceptional intervention to limit the scope of human rights work.