Date recorded: May 10 2016

Duration: 32 minutes 32 seconds

This presentation explores the relevance of soil analysis in forensic science. It presents the use of Morphologically-Directed Raman Spectroscopy (MDRS) and its potential to be a valuable tool for forensic soil analysis due to its non-destructive, automated approach to collecting morphological and chemical information on individual particles. The presentation includes a live demonstration of the Morphologi software, using a simple example to compare soils collected from different Malvern sites around the world. A more detailed forensic example is presented which combines MDRS analysis with principal component analysis to distinguish between soil samples collected from four sites along the same road.
Table of contents
1. Welcome!
01:13
2. Forensic Soil Analysis
00:07
3. Overview
00:39
4. A BRIEF HISTORY OF FORENSIC SOIL ANALYSIS
00:03
5. Sherlock Holmes
00:23
6. Hans Gross
00:30
7. “The Microscope as Detective”
01:07
8. The Filbert Case (1908)
01:54
9. The Filbert Case (1908)
01:20
10. Locard Exchange Principle (1929)
00:35
11. Untitled
01:00
12. FORENSIC SOIL ANALYSIS
00:04
13. Soil (for Forensic Purposes)
00:13
14. Soil Complexity
00:20
15. Mineral
00:47
16. Soil Examination/Analysis
00:12
17. Modern Methods of Soil Analysis
00:25
18. Particle Size Distribution
00:17
19. Untitled
00:08
20. Modern Methods for Mineral Identification
00:35
21. Raman Microspectroscopy
00:50
22. Why MDRS for Soil Minerals?
01:30
23. Soil analysis case study
00:41
24. Soil samples were collected from Malvern offices at three locations around the world…
00:37
25. MDRS – Morphologically-Directed Raman Spectroscopy….How does it work?
01:09
26. Soil sample preparation
00:42
27. Results overview
00:09
28. 20160510-Malvern-ForensicSoilAnalysis
00:00
29. Summary - Chemical composition of soil samples
00:23
30. Chemical composition of soil samples
00:26
31. Chemical composition of soil samples
00:08
32. Chemical composition of soil samples
00:05
33. Size distribution of quartz component in soil
00:20
34. Shape distributions of quartz component in soil
00:06
35. Shape distributions of quartz component in soil
00:05
36. Detailed characterization: Tokyo, Japan soil sample
00:23
37. Detailed characterization: Tokyo, Japan soil sample
00:31
38. Summary
00:20
39. Soil analysis case study
00:29
40. Materials and Methods
00:58
41. Quartz Sites B and C – Particle Morphologies
00:39
42. Quartz PSD –Site B vs Site C
00:56
43. MDRS of Soil Minerals% Particle Count
00:51
44. Chemometrics: Principal Component Analysis
02:04
45. Chemometrics: Principal Component Analysis
00:11
46. PCA of Soil Mineral Data
00:24
47. Conclusions
01:02
48. Thank you for your attentionAny questions?
03:42
49. Contact Information
00:59