The Science of Trace Evidence
News from Microtrace
Recovering Indented Writing by ESDA
Writing can cause indentations on paper underlying an original document. The technique of ESDA allows indentations from prior writing to be developed and visualized by transforming them into visible contrast. This can reveal letters, numbers, words, or characters. Read More
Visualizing TiO2 and Pigments in Paint and Polymers by Microscopy
Microtrace has conducted much research on pigments in paint, fibers, and polymers. Titanium dioxide, in the form of rutile or anatase is probative and can be analyzed by Raman, SEM, and TEM. Read More
Merry Christmas from Microtrace!
Happy Holidays and New Year 2022 from Microtrace! Read More
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Recent Publications
Glass Evidence Analysis by Refractive Index and Elemental Composition
"An Interlaboratory Study Evaluating the Interpretation of Forensic Glass Evidence Using Refractive Index Measurements and Elemental Composition." Co-authored by Brendan Nytes, in Forensic Chemistry 22; 2021. Read More
Article: Characterization of Aluminum Powders in IEDs, Part II
"Characterization and differentiation of aluminum powders used in improvised explosive devices. Part 2: Micromorphometric method refinement and preliminary statistical analysis." Co-authored by Jack Hietpas PhD. Journal of Forensic Sciences, 19 November 2020. Read More
Article: Characterization of Crystalline Structures in Cannabis Extracts
“Optical and spectroscopic characterization of crystalline structures in cannabis extracts” by Otyllia R. Abraham. Journal of Forensic Sciences 2021. Read More