Forensic Evidence in Sexual Assault Cases

The NIJ, through the National Criminal Justice Reference Service, has made available a final technical report, Automating the Differential Digestion Method in the Analysis of Sexual Assault Cases using Selective Degradation by authors Helena G. Wong, Jennifer S. Mihalovich, and George Sensabaugh.

Iris Images as a Long-Term Form of Identification

A new report by biometric researchers at the National Institute of Standards and Technology (NIST) uses data from thousands of frequent travelers enrolled in an iris recognition program to determine that no consistent change occurs in the distinguishing texture of their irises for at least a decade. These findings inform identity program administrators on how often iris images need to be recaptured to maintain accuracy.

Device Generates 3D Scans of Impression Evidence

The authors of a final technical report recently released by the NIJ describe a digitizing device that can be used to scan and generate 3D and 2D images of impression evidence.

Arrestee DNA Policy

"You're under arrest. Now show me your DNA." Through the National Criminal Justice Reference Service, NIJ has made available a final technical report: Collecting DNA at Arrest: Policies, Practices, and Implications.

Sexual Assault Evidence Backlog Reduction

A new NIJ Journal article, "New Orleans Sexual Assault Evidence Project: Results and Recommendations," by Nancy Ritter, provides a look at how an NIJ-sponsored project has contributed to the growing body of evidence on how to deal with untested sexual assault kits.

New Guide: Building 21st-Century Forensic Labs

A new National Institute of Standards and Technology (NIST) handbook provides law enforcement agencies with a detailed how-to guide on the planning, design, construction and relocation of forensic science laboratories. The document not only outlines the process of creating a new crime lab from start to finish, it also provides guidance on integrating the latest scientific developments, efficiency improvements and sustainability practices.

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Product News

Six interchangeable LED lamps

highlight the features of the OPTIMAX Multi-Lite Forensic Inspection Kit from Spectronics Corporation. This portable kit is designed for crime-scene investigation, gathering evidence, and work in the forensic laboratory. The LEDs provide six single-wavelength light sources, each useful for specific applications, from bodily fluids to fingerprints. The wavelengths are: UV-A (365 nm), blue (450 nm), green (525 nm), amber (590 nm), red (630 nm), and white light (400-700 nm). The cordless flashlight weighs only 15 oz. To learn more, go to: