Introduction

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

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 multiple chemical constituents, and the presence of these liquids is masked by significant background interferences from combustion and pyrolysis of building materials and other objects involved in the fire.

Dr. Michael Sigman and Mary Williams from University of Central Florida developed a method for analyzing fire debris samples that are highly contaminated with pyrolysis interferences. The method averages mass spectra across an entire chromatographic run, and can effectively classify ignitable liquids according to the widely accepted ASTM International (ASTM) classification scheme.

“This technique provides an alternative objective method for classifying ignitable liquid residues, which is one of the only viable options for helping to progress fire debris analysis beyond a subjective comparison technique.”

- Glen P. Jackson, Ph.D. | Forensic and Investigative Science & C. Eugene
Bennett Department of Chemistry, West Virginia University


Funding for this Forensic Technology Center of Excellence success story was provided by the National Institute of Justice, Office of Justice Programs, U.S. Department of Justice.

The opinions, findings, and conclusions or recommendations expressed in this success story are those of the author(s) and do not necessarily reflect those of the U.S. Department of Justice.

Contact us at ForensicCOE@rti.org with any questions and subscribe to our newsletter for notifications.


Related Content

Validation of a Confirmatory Proteomic Mass Spectrometry Body Fluid Assay

← Back to Webinar Series Page This webinar originally occurred on December 7, 2023Duration: 1 hour Overview With increasingly sensitive forensic methods for DNA detection, the source from which a DNA profile is obtained becomes increasingly important. Was an individual’s…

Hair Root Staining – What Can Hematoxylin Do for Your Laboratory?

This webinar originally occurred on August 16, 2022 Duration: 1 hour Overview Hair evidence collected as part of a forensic investigation has the potential to provide valuable source information through DNA analysis of its root. In the years prior to…