The use of breath tests to assess the extent of alcohol use has become a standard procedure in the enforcement of impaired driving laws in many countries around the world. In Canada, if a police officer has a reasonable suspicion that a driver has consumed alcohol, he or she can demand the driver provide a sample of breath for analysis using an approved screening device (ASD). “Random” or “mand...

Recently, the abuse of ketum, an indigenous psychoactive plant, has received a lot of attention in Malaysia. To help national law enforcement agencies control its abuse, the laboratory of the Forensic Division has developed a procedure for its positive identification. Botanical identification may not be practical or conclusive, owing to the wide range of ketum materials available on the market,...

Laboratory-based mock crime studies have often been interpreted to mean that (i) eyewitness confidence in an identification made from a lineup is a weak indicator of accuracy and (ii) sequential lineups are diagnostically superior to traditional simultaneous lineups. Largely as a result, juries are increasingly encouraged to disregard eyewitness confidence, and up to 30% of law enforcement agen...

About this series EMCDDA Risk Assessments are publications examining the health and social risks of individual new psychoactive substances. The Risk Assessment Report consists of an analysis of the scientific and law enforcement information available on the new psychoactive substance under scrutiny and the implications of placing it under control. It is the outcome of a meeting convened under t...

An Innovative Simulation Environment for Cross-Domain Policy Enforcement Lifeng Wang, Zhengping Wu Department of Computer Science and Engineering University of Bridgeport, Bridgeport, CT Policy-based management is necessary for cross-domain organization collaborations and system integrations. In reality different systems from different organizations or domains have very different high-level pol...