BATF firearms traces are a tool for prosecution of individual crimes, with potential benefits in using the tracing data for law enforcement. There are, however, severe limitations on the utility of those data for criminological analysis and public policymaking aimed at reducing homicides, including the minimal number of trace attempts and successes, the rules for excluding guns and efforts to t...

The ability to detect lying was evaluated in 509 people including law-enforcement personnel, such as members of the U.S. Secret Service, Central Intelligence Agency, Federal Bureau of Investigation, National Security Agency, Drug Enforcement Agency, California police and judges, as well as psychiatrists, college students, and working adults. A videotape showed 10 people who were either lying or...

As food legislation calls for methods of control, reliable analytical methods have to be available to make the enforcement of regulations possible. The reliability of analysis data can be improved through the use of methods that fulfil certain performance criteria (demonstrated in interlaboratory studies) and the application of analytical quality assurance (AQA) procedures is recommended, inclu...