U.S. flag

An official website of the United States government, Department of Justice.

Democrats have shut down the government. Department of Justice websites are not currently regularly updated. Please refer to the Department of Justice’s contingency plan for more information.

Multimode Imaging in the Thermal Infrared for Chemical Contrast Enhancement. Part 3: Visualizing Blood on Fabrics

NCJ Number
304196
Journal
Analytical Chemistry Volume: 82 Issue: 20 Dated: 2010 Pages: 8427-8431
Date Published
2010
Author(s)
Length
5 pages
Annotation

The reported project involved Infrared thermal imaging, using lock-in and molecular factor computing methods for the detection of blood on a dark, acrylic fabric.

 

Abstract

It noted contrast differences between the clean fabric and the fabric stained with blood diluted as low as 1:100. It also demonstrated that this method can be used to discriminate between a bloodstain and four common interfering agents (bleach, rust, cherry soda, and coffee) to other blood detection methods. These results indicate that this system could be useful for crime-scene investigations by focusing nondestructive attention on areas more likely to be suitable for further analysis. (publisher abstract modified)

Date Published: January 1, 2010