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Lisa Borsuk, Katherine Gettings, Carolyn R. Steffen, Kevin M. Kiesler, Peter Vallone
A set of 1036 U.S. Population Samples were sequenced using the Illumina ForenSeq DNA Signature Prep Kit. This sample set has been highly characterized using a variety of marker systems for human identification. The FASTQ files obtained from a ForenSeq DNA
Ambient mass spectrometry has evolved rapidly over the past decade, yielding a plethora of platforms and demonstrating scientific advancements across a range of fields from biological imaging to rapid quality control. These techniques have enabled real
Isaac T. Leventon, Stanislav I. Stoliarov, James T. Lord
Reconstructive fire testing is an important tool used by fire investigators to determine the cause, origin, and progression of a particular fire. Accurate reconstruction of the fire requires the laboratory structure to be outfitted with materials that, in
Infrared thermal desorption (IRTD) was coupled with direct analysis in real time mass spectrometry (DART-MS) for the detection of both inorganic and organic explosives from wipe collected samples. This platform generated discrete and rapid heating rates
Erica L. Romsos, Margaret C. Kline, Natalia Farkas, David L. Duewer, Blaza Toman
Standard Reference Material (SRM) 2372a is intended for use in the value assignment of human genomic deoxyribonucleic acid (DNA) forensic quantitation materials. A unit of SRM 2372a consists of three well-characterized human genomic DNA materials
Jun-Feng Song, Theodore V. Vorburger, Wei Chu, James H. Yen, Johannes A. Soons, D Ott, Nien F. Zhang
Estimating error rates for firearm evidence identification is a fundamental challenge in forensic science. This paper describes the recently developed Congruent Matching Cells (CMC) method for image comparisons, its application to firearm identification
Christopher Phillips, Katherine Gettings, Jonathan King, David Ballard, Martin Bodner, Lisa Borsuk, Walther Parson
The STR sequence template file published in 2016 as part of the considerations from the DNA Commission of theInternational Society for Forensic Genetics on minimal STR sequence nomenclature requirements, has been comprehensively revised and audited using
In this paper, we describe a layered graphical model to analyze the mission impacts of attacks for forensic investigation. Our model has three layers: the upper layer models operational tasks and their dependencies; the middle layer reconstructs attack
Johannes A. Soons, Robert M. Thompson, Jun-Feng Song
To address concerns of subjectivity in firearm evidence examination, algorithms are being developed to compare firearm tool marks imparted on ammunition and generate a quantitative measure of similarity. The goal of this paper is to demonstrate a new
Zhe Chen, Jun-Feng Song, Wei Chu, Johannes A. Soons, Xuezeng Zhao
The Congruent Matching Cells (CMC) method was invented at the National Institute of Standards and Technology (NIST) for accurate firearm evidence identification and error rate estimation. The CMC method is based on the principle of discretization. The
Katherine Gettings, Lisa Borsuk, D Ballard, Martin Bodner, Bruce Budowle, Laurence Devesse, Jonathan King, W. Parson, Christopher Phillips, Peter Vallone
The STR Sequencing Project (STRSeq) was initiated to facilitate the description of sequence- based alleles at the Short Tandem Repeat (STR) loci targeted in human identification assays. This international collaborative effort, which has been endorsed by
Fentanyl and fentanyl analogs pose a significant and ever changing threat in the United States as both pure compounds and in complex mixtures. While commonly considered detection techniques require visible amounts of powder (i.e. color tests or GC/MS
Cloud computing provides several benefits to organizations such as increased flexibility, scalability and reduced cost. However, it provides several challenges for digital forensics and criminal investigation. Some of these challenges are the dependence of
In the previous work, palmitic acid in sebum was used as a chronological marker for age dating of fingerprints, using time-of-flight secondary ion mass spectrometry (ToF-SIMS) to visualize its spreading on the surface. Its diffusivity assuming an infinite
Eoghan Casey, Sean Barnum, Ryan Griffith, Jonathan Snyder, Harm van Beek, Alexander J. Nelson
Any investigation can have a digital dimension, often involving information from multiple data sources, organizations and jurisdictions. Existing approaches to representing and exchanging cyber-investigation information are inadequate, particularly when
Richard Essex, Jacqueline L. Mann, Ross W. Williams, William S. Kinman, Amelie Hubert, Megan E. Bennett
A new reference material, preliminarily designated as SRM 3059, was characterized for 229Th molality (molg-1) and thorium isotope amount ratios. This SRM is intended for use in nuclear forensic analyses as an isotope dilution mass spectrometry spike. The
Forensic photography has been one of the most important tool for investigators over many decades. They preserve the history of the scene and provides a way for investigators to revisit the scene. However, it is difficult to ascertain any objective
Haiying Guan, Paul Y. Lee, Curtis L. Lamp, Andrew Dienstfrey, Mary Frances Theofanos, Brian Stanton, Matthew Schwarz
Latent fingerprints obtained from crime scenes are rarely immediately suitable for identification purposes. Instead, most latent fingerprint images must be preprocessed to enhance the fingerprint information held within the digital image, while suppressing
Wipe collected analytes were thermally desorbed using broad spectrum near infrared heating for mass spectrometric detection. Employing a twin tube filament-based infrared emitter, rapid and efficiently powered thermal desorption and detection of nanogram
Amanda Forster, Julie L. Bitter, Samuel E. Rosenthal, Stephanie S. Watson, Sydney Brooks
Microspectrophotometry (MSP) is a rapid, nondestructive technique for the analysis of color in textile fibers. This technique combines microscopy and ultraviolet (UV)/visible (Vis) spectroscopy, allowing for very small colored samples, like dyed textile
The quest for a reliable means to detect cannabis intoxication with a br eathalyzer is ongoing. In order to design such a device, it is important to understand the basic fundamental thermodynamics of the compounds of interest. Herein, the vapor pressures