Success Story: Establishing a “Microbial Clock” to Improve Time of Death Prediction

National Institute of Justice and Multi-Institute Academic Team Date April 2018 Overview The postmortem interval (PMI) is the time that has elapsed since a person’s death. Determining the PMI at a crime scene may help to recreate the victim’s timeline…

Applied Polarized Light Microscopy for Trace Evidence Examiners

REPORT DATE April 2018 REPORT SUMMARY Polarized light microscopy (PLM) is a technique commonly used in the field of forensic science. PLM characterizes and identifies trace evidence found at crime scenes, such as fibers, hairs, paints, and glass fragments. This…
wood burning

Success Story: Advancing the Forensic Analysis of Ignitable Liquid Fuel Fires

National Institute of Justice and JENSEN HUGHES Date February 2018 Overview Investigating fires with “liquid fuel” is particularly challenging, as the combustion of building materials often conceals the presence of the fuel. JENSEN HUGHES, led by Dr. Daniel Gottuk, evaluated…

Detection of Organic Gunshot Residue Using Capillary Microextraction of Volatiles with Cryofocusing

Technical Note Date July 2017 Purpose Researchers at Florida International University’s (FIU’s) International Forensic Research Institute evaluated the capability of capillary microextraction of volatiles (CMV) to extract the volatile organic compounds (VOCs) that constitute organic gunshot residue (OGSR) on the…

Evaluation of Existing Technologies for Novel Analysis and Probabilistic Interpretation of Organic Gunshot Residue

Technical Note Date July 2017 Purpose   Firearms exposure has traditionally been monitored by screening for the presence of inorganic particles prevalent in gunshot residue (GSR). These inorganic compounds are associated with the primer in ammunition. Recent research efforts have…

2015 TechBeat Articles Featuring the FTCoE

Gunshot Residue Analysis Featured in New ftcoe Report Series Issue: Sep/Oct 2015 Pages: 3-8 Click here to read the article Familial DNA Project: Engaging Stakeholders, Sharing Opinions Issue: May/Jun 2015 Pages: 13-14 Click here to read the article Cutting-Edge Vacuum Technology: Locates hard to find…
burned house and sofa on fire

Success Story: Identifying Ignitable Liquids in Fire Debris and Providing Error Rates for Purposes of Testifying

National Institute of Justice and University of Central Florida Date November 2016 Overview Determining the presence of ignitable liquid residue among the fire debris in an arson investigation is a complicated forensic problem. Most ignitable liquids commonly encountered consist of…