Exposure to Passive Cannabis Smoke Contaminates Hair for Seven Weeks

Is it possible to test for cannabis use by sampling a suspected user’s hair, and could you tell if a positive result is due to use or third-hand passive smoking? Research in Drug Testing and Analysis explored condensation of cannabis smoke on hair surface to discover a more accurate method of testing for external contamination. The research analyzed three participants who were exposed to the smoke of one joint every weekday over three weeks.

Biomarkers of Human Decomposition Ecology

A final technical report, "Biomarkers of Human Decomposition Ecology and the Relationship to Postmortem Interval," was recently made available by the National Institute of Justice, through the National Criminal Justice Reference Service.



Studying Degraded DNA

Through the National Criminal Justice Reference Service, the National Institute of Justice has made available a report: "NIJ Proposal to Enhance Methods for Studying Degraded DNA, Final Technical Report".

Natural Enzymes Conquer Difficult Cleaning Challenges

Zymit Low-Foam is a synergistic dual-enzyme and detergent formula that specifically target and remove protein- and starch-based soils. The enzymes break down dirt, and the detergents gently wash it away. In some cases, Zymit Low-Foam will even deodorize. With a typical pH (neat) of 6.9 to 8.4, Zymit Low- Foam is almost as mild as ordinary water.

Automated Processing of Sexual Assault Cases

A new final technical report on the automated processing of sexual assault cases using selective degradation was recently made available by the NIJ through the National Criminal Justice Reference Service.

Free Webinar: Postmortem Interval and Molecular Autopsy

A live webinar, Falling Into Decay: Postmortem Interval and Molecular Autopsy, will be available April 10, 16, and 30. The webinar is presented by RTI International, NIJ's Forensic Science Technology Center of Excellence, in their Live Forensic Research Seminar Series.

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Forensic Podiatry (Part Two of Two)

THE DISCIPLINE of forensic podiatry—or, in other words, the examination of pedal evidence—has progressed significantly over the past ten years. It is no longer a question of “What can you do with a footprint?” but rather, “Who can we use to evaluate the footprint?” Cases involving pedal evidence, especially bloody footprints and issues of determining shoe sizing or fit issues compared to questioned footwear, have become more common over the past two or three years.